336
FNUS55 KBOU 201027
FWFBOU
FIRE WEATHER FORECAST FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
327 AM MST SAT DEC 20 2025
DISCUSSION...TODAY AND TONIGHT
WINDS WILL BE LIGHTER TODAY
WITH A DECREAQSE IN FIRE WEATHER CONDITIONS. THERE COULD BE
A FEW HOURS OF ELEVATED FIRE CONDITIONS OVER THE SOUTHERN
FOOTHILLS AND WESTERN AREAS OF THE PALMER DIVIDE THIS AFTERNOON
AS WEST TO NORTHWEST WINDS UP TO 35 MPH OCCUR. HOWEVER HUMIDITY
LEVELS WILL BE ABOVE 20 PERCENT. SNOW WILL OCCUR IN THE
NORTHERN MOUNTAINS TODAY BUT DECREASE BY LATE AFTERNOON.
LONG TERM DISCUSSION...SUNDAY THROUGH WEDNESDAY...
A TRANSITION BACK TO A GENERALLY WARM AND DRY PERIOD WILL DEVELOP
FROM SUNDAY THROUGH THE MIDDLE PART OF NEXT WEEK. THE
RIDGE AXIS LOOKS TO SET UP A LITTLE FURTHER NORTH THAN THE PAST
FEW DAYS, MEANING THE CHANCE OF HIGH WIND EVENTS IS LOWER THAN THE
PAST SEVERAL DAYS. STILL, THERE MAY BE PERIODS OF ELEVATED OR
NEAR CRITICAL FIRE WEATHER CONDITIONS EAST OF THE CONTINENTAL
DIVIDE DURING PERIODS OF STRONGER WINDS.
...THUNDERSTORMS IMPLY STRONG GUSTY ERRATIC WINDS...
...ALL SURFACE WINDS ARE 20-FOOT...10-MINUTE AVERAGED WINDS...
...CWR IS CHANCE OF WETTING RAIN - 0.10 INCH OR MORE LIQUID...
...24 HR TRENDS ARE BASED ON AVERAGES OVER THE RESPECTIVE ZONE
GROUPS AND MAY NOT MATCH THE ACTUAL FORECAST VALUES
SHOWN IN THOSE GROUPS...
COZ238-202315-
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
INCLUDING FORT COLLINS, HEREFORD, LOVELAND, NUNN,
AND WEST PAWNEE GRASSLANDS
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 1400.
CHANCE OF RAIN. SLIGHT CHANCE OF SNOW AFTER
1400.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....46-52.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........36-42%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTHWEST WINDS 6-13 MPH UNTIL 1100, THEN WEST
5-12 MPH. GUSTS UP TO 30 MPH.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 10-15 MPH UNTIL 1100, THEN WEST.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....22-28.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........89-99%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......WEST WINDS 4-8 MPH. GUSTS UP TO 20 MPH IN THE
EVENING.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1000-1500 FT AGL UNTIL 2000, THEN BELOW 1000 FT
AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1900, THEN LIGHT.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY
CLOUDY(50-60%) UNTIL 1400, THEN PARTLY
CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....50-54.
24 HR TREND......2-4 DEGREES WARMER.
MIN HUMIDITY........39-43%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......WEST WINDS 4-7 MPH UNTIL 1100, THEN SOUTH 4-13
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 1000-1500 FT
AGL UNTIL 1600, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1100, THEN SOUTH AROUND 10
MPH UNTIL 1600, THEN LIGHT.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. WEST WINDS
4-8 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE MID 60S. WEST WINDS
5-12 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
UPPER 50S. SOUTHWEST WINDS 4-8 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 60S. WEST WINDS 5-12 MPH.
COZ239-202315-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
INCLUDING ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY
CLOUDY(50-60%). CHANCE OF RAIN UNTIL 1100, THEN
SLIGHT CHANCE OF RAIN.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....52-58.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........27-37%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......NORTHWEST WINDS 7-15 MPH. GUSTS UP TO 45 MPH
DECREASING TO 30 MPH IN THE AFTERNOON.
CWR.................10 PERCENT DECREASING TO 0 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......3500-4500 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 0700, THEN 10-15 MPH UNTIL
1300, THEN NORTHWEST 15-20 MPH.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(30-35%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....27-33.
24 HR TREND......10-15 DEGREES COOLER.
MAX HUMIDITY........76-86%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......WEST WINDS 4-7 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1000-1500 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1100, THEN MOSTLY
CLOUDY(50-60%) UNTIL 1400, THEN PARTLY
CLOUDY(30-40%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....55-61.
24 HR TREND......2-4 DEGREES WARMER.
MIN HUMIDITY........29-39%.
24 HR TREND......2-4% WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 4-12 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1200, THEN SOUTHWEST AROUND
10 MPH UNTIL 1600, THEN LIGHT.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS 4-9 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS
7-14 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE LOWER
60S. SOUTHWEST WINDS 4-8 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
MID 60S. SOUTHWEST WINDS 6-13 MPH.
COZ240-202315-
NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND
ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY-
INCLUDING AURORA, BRIGHTON, CITY OF DENVER,
DENVER INTERNATIONAL AIRPORT, HIGHLANDS RANCH, LITTLETON,
AND PARKER
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%). SLIGHT CHANCE OF RAIN
UNTIL 1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....52-58.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........27-31%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......NORTH WINDS 6-14 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......2500-3500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 25 MPH UNTIL 0600, THEN NORTHWEST
AROUND 15 MPH UNTIL 0700, THEN NORTHEAST UNTIL
1000, THEN EAST UNTIL 1200, THEN NORTH.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....27-33.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........70-80%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......SOUTH WINDS 4-8 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 1900, THEN LIGHT UNTIL
2300, THEN SOUTH AROUND 10 MPH UNTIL 0300, THEN
LIGHT.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1100, THEN MOSTLY
CLOUDY(50-60%) UNTIL 1400, THEN PARTLY
CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....58-64.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........23-31%.
24 HR TREND......4-7% DRIER.
20-FOOT WINDS.......SOUTH WINDS 4-9 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 2000-3000 FT
AGL.
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0700, THEN SOUTH AROUND 10
MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS 5-12 MPH.
MONDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
6-13 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE MID
60S. SOUTHWEST WINDS 4-9 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 60S. SOUTHWEST WINDS 7-14 MPH.
COZ241-202315-
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-
INCLUDING CASTLE ROCK, ELBERT, FONDIS, KIOWA, AND LARKSPUR
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-57.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........28-34%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......NORTHWEST WINDS 6-13 MPH UNTIL 1100, THEN
NORTHEAST. GUSTS UP TO 25 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......4500-5500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 0800, THEN NORTHEAST
AROUND 10 MPH UNTIL 1000, THEN SOUTH UNTIL
1200, THEN WEST 15-20 MPH UNTIL 1600, THEN
NORTH AROUND 10 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD UNTIL 1600, THEN
POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(30-40%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....26-32.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........70-80%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......SOUTH WINDS 5-13 MPH. GUSTS UP TO 20 MPH AFTER
MIDNIGHT.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 1800, THEN SOUTH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(30-40%) UNTIL 0800, THEN MOSTLY
CLOUDY(50-60%) UNTIL 1400, THEN PARTLY
CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....53-63.
24 HR TREND......LITTLE CHANGE.
MIN HUMIDITY........26-36%.
24 HR TREND......2-4% WETTER.
20-FOOT WINDS.......SOUTH WINDS 9-17 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0800, THEN 2500-3500 FT
AGL.
TRANSPORT WINDS.....SOUTH 15-20 MPH UNTIL 1400, THEN SOUTHWEST
AROUND 25 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS 8-15 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S.
SOUTHWEST WINDS 8-15 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE MID
60S. SOUTHWEST WINDS 6-13 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
MID 60S. SOUTHWEST WINDS 9-16 MPH.
COZ242-202315-
NORTHEAST WELD COUNTY-
INCLUDING BRIGGSDALE, EAST PAWNEE GRASSLANDS, GROVER,
PAWNEE BUTTES, RAYMER, AND STONEHAM
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF SNOW
UNTIL 1100. CHANCE OF RAIN. CHANCE OF SNOW
AFTER 1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-49.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........35-39%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 8-15 MPH WITH GUSTS TO AROUND
35 MPH UNTIL 1100, THEN SOUTHWEST 5-12 MPH.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......1000-1500 FT AGL.
TRANSPORT WINDS.....NORTH 20-25 MPH UNTIL 0700, THEN NORTHEAST
10-15 MPH UNTIL 1000, THEN SOUTHWEST.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-27.
24 HR TREND......4-7 DEGREES COOLER.
MAX HUMIDITY........89-99%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 4-8 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 0200, THEN LIGHT
UNTIL 0300, THEN SOUTH AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 1400, THEN PARTLY
CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-55.
24 HR TREND......2-4 DEGREES WARMER.
MIN HUMIDITY........36-40%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......SOUTHWEST WINDS 4-12 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1100, THEN 1000 FT AGL
UNTIL 1600, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0800, THEN SOUTH 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. WEST WINDS
4-8 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE MID 60S. WEST WINDS
4-8 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE UPPER 50S.
SOUTH WINDS 4-8 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE MID 60S.
SOUTHWEST WINDS 4-9 MPH.
COZ243-202315-
CENTRAL AND SOUTH WELD COUNTY-
INCLUDING EATON, FORT LUPTON, GREELEY, AND ROGGEN
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY(55-60%). SLIGHT CHANCE OF RAIN.
SLIGHT CHANCE OF SNOW AFTER 0800 UNTIL 1500.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....48-52.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........33-39%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 6-14 MPH. GUSTS UP TO 30 MPH IN
THE MORNING.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1000-1500 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH UNTIL 0700, THEN
NORTHEAST UNTIL 1000, THEN EAST.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-27.
24 HR TREND......10-15 DEGREES COOLER.
MAX HUMIDITY........94-98%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......EAST WINDS 4-8 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1800, THEN SOUTHEAST AROUND
10 MPH UNTIL 2000, THEN LIGHT.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY
CLOUDY(50-60%) UNTIL 1400, THEN PARTLY
CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-57.
24 HR TREND......2-4 DEGREES WARMER.
MIN HUMIDITY........35-43%.
24 HR TREND......4-7% WETTER.
20-FOOT WINDS.......WEST WINDS 4-7 MPH UNTIL 1100, THEN SOUTHEAST
4-8 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1200, THEN 1000 FT AGL
UNTIL 1500, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. WEST WINDS
4-8 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S. SOUTH
WINDS 4-8 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE UPPER 50S.
SOUTH WINDS 4-7 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE MID 60S.
SOUTHWEST WINDS 4-9 MPH.
COZ244-202315-
MORGAN COUNTY-
INCLUDING BRUSH, FORT MORGAN, GOODRICH, AND WIGGINS
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%). SLIGHT CHANCE OF RAIN
AND SNOW.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....46-50.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........38-44%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 7-14 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 1100, THEN EAST 4-8 MPH.
CWR.................10 PERCENT DECREASING TO 0 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0600, THEN 1000-1500 FT
AGL.
TRANSPORT WINDS.....NORTH 20-25 MPH UNTIL 0700, THEN EAST 10-15 MPH
UNTIL 1100, THEN SOUTHEAST.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2000, THEN PARTLY
CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....22-28.
24 HR TREND......4-7 DEGREES COOLER.
MAX HUMIDITY........90-100%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......SOUTH WINDS 4-9 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0800, THEN MOSTLY
CLOUDY(55-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....54-60.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........34-40%.
24 HR TREND......2-4% DRIER.
20-FOOT WINDS.......SOUTH WINDS 4-12 MPH. GUSTS UP TO 20 MPH IN THE
AFTERNOON.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0800, THEN 1000-1500 FT
AGL.
TRANSPORT WINDS.....SOUTH 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. SOUTHWEST WINDS
4-8 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S.
SOUTHWEST WINDS 4-9 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE LOWER 60S.
SOUTH WINDS 4-8 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE MID 60S.
SOUTHWEST WINDS 4-9 MPH.
COZ245-202315-
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-
INCLUDING BENNETT, BYERS, DEER TRAIL, AND LEADER
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....48-52.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........31-39%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 6-13 MPH. GUSTS UP TO 20 MPH IN
THE MORNING.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0600, THEN 1000-1500 FT
AGL.
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 0700, THEN NORTHEAST
UNTIL 1000, THEN SOUTHEAST.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....26-30.
24 HR TREND......2-4 DEGREES COOLER.
MAX HUMIDITY........78-88%.
24 HR TREND......7-10% WETTER.
20-FOOT WINDS.......SOUTH WINDS 6-13 MPH. GUSTS UP TO 20 MPH AFTER
MIDNIGHT.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 1800, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 10-15 MPH UNTIL 2000, THEN SOUTH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 0800, THEN MOSTLY
CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....58-62.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........25-33%.
24 HR TREND......4-7% DRIER.
20-FOOT WINDS.......SOUTH WINDS 7-15 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 40-50 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 2000-3000 FT
AGL.
TRANSPORT WINDS.....SOUTH 10-15 MPH UNTIL 1400, THEN AROUND 20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS 7-14 MPH.
MONDAY
PARTLY CLOUDY. HIGHS AROUND 70. SOUTHWEST WINDS
7-14 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
60S. SOUTH WINDS 6-13 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 60S. SOUTHWEST WINDS 8-15 MPH.
COZ248-202315-
LOGAN COUNTY-
INCLUDING CROOK, MERINO, STERLING, AND PEETZ
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF SNOW
AFTER 1100 UNTIL 1400. SLIGHT CHANCE OF RAIN
AFTER 1200 UNTIL 1400.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....42-46.
24 HR TREND......20-25 DEGREES COOLER.
MIN HUMIDITY........39-45%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 7-14 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 1100, THEN SOUTH 4-9 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 65-75 MPH.
MIXING HEIGHT.......1000-2000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 15-20 MPH UNTIL 0800, THEN AROUND 10
MPH UNTIL 1000, THEN SOUTH UNTIL 1200, THEN
SOUTHWEST.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....23-27.
24 HR TREND......2-4 DEGREES COOLER.
MAX HUMIDITY........89-99%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......SOUTH WINDS 4-9 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1100, THEN MOSTLY
CLOUDY(60-65%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....52-56.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........36-40%.
24 HR TREND......4-7% DRIER.
20-FOOT WINDS.......SOUTH WINDS 7-15 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 1000-2000 FT
AGL.
TRANSPORT WINDS.....SOUTH 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 30. SOUTHWEST WINDS
4-9 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S. WEST
WINDS 4-9 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE UPPER 50S.
SOUTH WINDS 4-8 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
MID 60S. SOUTHWEST WINDS 4-9 MPH.
COZ249-202315-
WASHINGTON COUNTY-
INCLUDING AKRON, COPE, LAST CHANCE, AND OTIS
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1400, THEN MOSTLY
CLOUDY(60-65%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....44-48.
24 HR TREND......20-25 DEGREES COOLER.
MIN HUMIDITY........37-45%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 7-14 MPH WITH GUSTS TO AROUND
20 MPH UNTIL 1100, THEN EAST 4-13 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0600, THEN 1000-1500 FT
AGL.
TRANSPORT WINDS.....NORTH AROUND 20 MPH UNTIL 0700, THEN EAST UNTIL
1000, THEN SOUTHEAST.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2000, THEN PARTLY
CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....25-29.
24 HR TREND......4-7 DEGREES COOLER.
MAX HUMIDITY........80-90%.
24 HR TREND......7-10% WETTER.
20-FOOT WINDS.......SOUTH WINDS 6-14 MPH. GUSTS UP TO 20 MPH AFTER
MIDNIGHT.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....SOUTH 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY
CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....53-57.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........35-39%.
24 HR TREND......4-7% DRIER.
20-FOOT WINDS.......SOUTH WINDS 10-18 MPH WITH GUSTS TO AROUND 35
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 40-50 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0600, THEN 1000-1500 FT
AGL.
TRANSPORT WINDS.....SOUTH 15-20 MPH UNTIL 1400, THEN AROUND 25 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS 8-15 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS AROUND 70. SOUTHWEST WINDS
6-13 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 60S. SOUTH WINDS 5-12 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE
UPPER 60S. SOUTHWEST WINDS 7-14 MPH.
COZ250-202315-
SEDGWICK COUNTY-
INCLUDING JULESBURG, OVID, AND SEDGWICK
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY(60-65%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....41-45.
24 HR TREND......20-25 DEGREES COOLER.
MIN HUMIDITY........41-45%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTH WINDS 6-13 MPH WITH GUSTS TO AROUND 25
MPH UNTIL 1100, THEN SOUTHWEST 4-8 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 70-80 MPH.
MIXING HEIGHT.......1000-1500 FT AGL.
TRANSPORT WINDS.....NORTH 15-20 MPH UNTIL 0800, THEN AROUND 10 MPH
UNTIL 0900, THEN LIGHT UNTIL 1200, THEN
SOUTHWEST 10-15 MPH.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(30-40%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....22-26.
24 HR TREND......2-4 DEGREES COOLER.
MAX HUMIDITY........89-99%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......SOUTH WINDS 6-10 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 65-75 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1100, THEN MOSTLY
CLOUDY(60-65%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....50-54.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........40-44%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......SOUTH WINDS 9-17 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700, THEN 1000-2000 FT
AGL.
TRANSPORT WINDS.....SOUTH 15-20 MPH UNTIL 1400, THEN 20-25 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH WINDS
6-13 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE MID 60S. WEST WINDS
5-12 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 50S. SOUTH WINDS 4-13 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
MID 60S. SOUTHWEST WINDS 4-13 MPH.
COZ251-202315-
PHILLIPS COUNTY-
INCLUDING AMHERST, HAXTUN, AND HOLYOKE
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY(55-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....42-46.
24 HR TREND......20-25 DEGREES COOLER.
MIN HUMIDITY........41-45%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 7-14 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 1100, THEN SOUTH 4-8 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 65-75 MPH.
MIXING HEIGHT.......1000-1500 FT AGL.
TRANSPORT WINDS.....NORTH 15-20 MPH UNTIL 0900, THEN NORTHEAST
AROUND 10 MPH UNTIL 1000, THEN LIGHT UNTIL
1200, THEN SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2000, THEN PARTLY
CLOUDY(30-40%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....22-26.
24 HR TREND......2-4 DEGREES COOLER.
MAX HUMIDITY........90-96%.
24 HR TREND......10-15% WETTER.
20-FOOT WINDS.......SOUTH WINDS 5-13 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....SOUTH 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1100, THEN MOSTLY
CLOUDY(60-65%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 53.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........38-42%.
24 HR TREND......2-4% DRIER.
20-FOOT WINDS.......SOUTH WINDS 9-17 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0600, THEN 1000-2000 FT
AGL.
TRANSPORT WINDS.....SOUTH 15-20 MPH UNTIL 1300, THEN 20-25 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTHWEST
WINDS 5-12 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S. WEST
WINDS 4-13 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 50S. SOUTH WINDS 4-9 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
MID 60S. SOUTHWEST WINDS 4-13 MPH.
COZ246-202315-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-
INCLUDING AGATE, HUGO, LIMON, AND MATHESON
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....47-52.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........33-39%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......NORTH WINDS 5-12 MPH UNTIL 1100, THEN EAST 6-12
MPH. GUSTS UP TO 20 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0800, THEN 1000-2000 FT
AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 0700, THEN
NORTHEAST UNTIL 1000, THEN SOUTHEAST.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-29.
24 HR TREND......4-7 DEGREES COOLER.
MAX HUMIDITY........83-93%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......SOUTH WINDS 7-15 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 0800, THEN MOSTLY
CLOUDY(50-60%) UNTIL 1400, THEN PARTLY
CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....49-59.
24 HR TREND......2-4 DEGREES WARMER.
MIN HUMIDITY........32-42%.
24 HR TREND......2-4% WETTER.
20-FOOT WINDS.......SOUTH WINDS 11-19 MPH WITH GUSTS TO AROUND 30
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 35-45 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0600, THEN 1000-2000 FT
AGL.
TRANSPORT WINDS.....SOUTH 15-20 MPH UNTIL 1300, THEN AROUND 25 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS 9-16 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS AROUND 70. SOUTHWEST WINDS
8-15 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
60S. SOUTH WINDS 7-14 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 60S. SOUTHWEST WINDS 9-16 MPH.
COZ247-202315-
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-
INCLUDING FORDER, KARVAL, KUTCH, AND PUNKIN CENTER
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....49-53.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........31-39%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......NORTH WINDS 7-14 MPH UNTIL 1100, THEN EAST 8-15
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 1000-2000 FT
AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 0700. SOUTHEAST
AFTER 1300.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-25.
24 HR TREND......10-15 DEGREES COOLER.
MAX HUMIDITY........87-97%.
24 HR TREND......35-50% WETTER.
20-FOOT WINDS.......SOUTHEAST WINDS 4-8 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 0200, THEN SOUTH
UNTIL 0400, THEN LIGHT.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1100, THEN MOSTLY
CLOUDY(55-60%) UNTIL 1400, THEN PARTLY
CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....48-52.
24 HR TREND......LITTLE CHANGE.
MIN HUMIDITY........38-44%.
24 HR TREND......7-10% WETTER.
20-FOOT WINDS.......SOUTH WINDS 6-14 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 35-45 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 1000-1500 FT
AGL.
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0600, THEN SOUTH 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST
WINDS 6-13 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S. WEST
WINDS 8-15 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 60S. SOUTHWEST WINDS 4-9 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
60S. SOUTHWEST WINDS 8-15 MPH.
COZ215-202315-
LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-
INCLUDING ESTES PARK, GLENDEVEY, LARAMIE RIVER VALLEY, NEDERLAND,
AND RED FEATHER LAKES
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY. SNOW LIKELY UNTIL 1100. CHANCE
OF RAIN. CHANCE OF SNOW AFTER 1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....38-48.
24 HR TREND......7-10 DEGREES COOLER.
MIN HUMIDITY........42-52%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 10-18 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGES/UPR SLOPES....WEST WINDS 10-18 MPH WITH GUSTS TO AROUND
40 MPH.
CWR.................20 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......4000-5000 FT AGL.
TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 1200, THEN 25-30 MPH UNTIL
1600, THEN AROUND 20 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2000, THEN PARTLY
CLOUDY(40-50%). SLIGHT CHANCE OF SNOW UNTIL
2300.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....26-32.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........71-81%.
24 HR TREND......2-4% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 6-14 MPH WITH GUSTS TO AROUND
25 MPH.
RIDGES/UPR SLOPES....WEST WINDS 6-14 MPH WITH GUSTS TO AROUND
25 MPH.
CWR.................10 PERCENT DECREASING TO 0 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-55.
24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........40-50%.
24 HR TREND......4-7% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 6-14 MPH WITH GUSTS TO
AROUND 30 MPH.
RIDGES/UPR SLOPES....SOUTHWEST WINDS 7-15 MPH WITH GUSTS TO
AROUND 30 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......3500-4500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15-20 MPH UNTIL 1200, THEN AROUND 25
MPH.
SMOKE DISPERSAL.....POOR UNTIL 1400, THEN GOOD.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS
10-17 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE MID 50S. WEST WINDS
13-23 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. WEST WINDS 6-13 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. WEST WINDS 9-16 MPH.
COZ216-202315-
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-
INCLUDING BAILEY, CENTRAL CITY, EVERGREEN, GEORGETOWN,
IDAHO SPRINGS, NORTHERN RAMPART RANGE, TARRYALL, AND WESTCREEK
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY
CLOUDY(50-60%) UNTIL 1100, THEN PARTLY
CLOUDY(50-60%). CHANCE OF SNOW UNTIL 1100.
SLIGHT CHANCE OF RAIN UNTIL 1400. SLIGHT CHANCE
OF SNOW AFTER 1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....46-56.
24 HR TREND......7-10 DEGREES COOLER.
MIN HUMIDITY........26-36%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 12-20 MPH. GUSTS UP TO 45 MPH
DECREASING TO 30 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....WEST WINDS 12-20 MPH. GUSTS UP TO 45 MPH
DECREASING TO 30 MPH IN THE AFTERNOON.
CWR.................10 PERCENT DECREASING TO 0 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......5000-6000 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 1000, THEN 30-35 MPH UNTIL
1600, THEN AROUND 25 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900, THEN VERY GOOD UNTIL 1100,
THEN EXCELLENT UNTIL 1600, THEN GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(30-40%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....27-35.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........55-65%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4-9 MPH. GUSTS UP TO 20
MPH IN THE EVENING.
RIDGES/UPR SLOPES....SOUTHWEST WINDS 5-13 MPH. GUSTS UP TO 25
MPH IN THE EVENING.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH UNTIL 0400, THEN AROUND 10
MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(30-40%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-61.
24 HR TREND......LITTLE CHANGE.
MIN HUMIDITY........26-36%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 6-14 MPH. GUSTS UP TO 20
MPH INCREASING TO 30 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHWEST WINDS 7-15 MPH WITH GUSTS TO
AROUND 30 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......3500-4500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH UNTIL 1100, THEN WEST 20-25
MPH.
SMOKE DISPERSAL.....POOR UNTIL 1300, THEN GOOD UNTIL 1600, THEN
POOR.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40. SOUTHWEST WINDS
10-17 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE LOWER 60S. WEST WINDS
13-20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE UPPER
50S. SOUTHWEST WINDS 7-14 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 50S. SOUTHWEST WINDS 10-17 MPH.
COZ211-202315-
JACKSON COUNTY BELOW 9000 FEET-
INCLUDING GOULD, NORTH PARK, RAND, SPICER, AND WALDEN
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY BLOWING SNOW UNTIL 0900.
SNOW UNTIL 1100, THEN SNOW LIKELY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....35-39.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........54-62%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......WEST WINDS 13-23 MPH WITH GUSTS TO AROUND 35
MPH.
CWR.................40 PERCENT DECREASING TO 20 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......3500-4500 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 1000, THEN GOOD UNTIL 1600, THEN
FAIR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....23-27.
24 HR TREND......4-7 DEGREES COOLER.
MAX HUMIDITY........82-92%.
24 HR TREND......7-10% WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 5-13 MPH WITH GUSTS TO AROUND
20 MPH.
CWR.................10 PERCENT DECREASING TO 0 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1500-2500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH UNTIL 2200, THEN AROUND 15
MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 0800, THEN PARTLY
CLOUDY(40-50%) UNTIL 1100, THEN MOSTLY
CLOUDY(50-60%). SLIGHT CHANCE OF SNOW AFTER
1100 UNTIL 1200, THEN SLIGHT CHANCE OF RAIN.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....42-46.
24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........54-64%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......SOUTHWEST WINDS 11-21 MPH WITH GUSTS TO AROUND
35 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....SOUTH 15-20 MPH UNTIL 1100, THEN SOUTHWEST
AROUND 25 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1300, THEN GOOD.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST
WINDS 14-24 MPH.
MONDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS
13-23 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 40S. SOUTH WINDS 8-15 MPH.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. SOUTH WINDS
12-18 MPH.
COZ213-202315-
GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-
INCLUDING DILLON, FRASER, GRANBY, GRAND LAKE,
GREEN MOUNTAIN RESERVOIR, HOT SULPHUR SPRINGS, KREMMLING,
MIDDLE PARK, AND WILLIAMS FORK RESERVOIR
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY. SNOW UNTIL 1100, THEN SNOW
LIKELY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....36-42.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........48-58%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......WEST WINDS 10-18 MPH. GUSTS UP TO 35 MPH
DECREASING TO 25 MPH IN THE AFTERNOON.
CWR.................20 PERCENT DECREASING TO 10 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......4500-5500 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 1100. AROUND 20 MPH AFTER
1600.
SMOKE DISPERSAL.....FAIR UNTIL 0900, THEN VERY GOOD UNTIL 1600,
THEN FAIR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL
2300.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-27.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........86-96%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 4-9 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
CWR.................10 PERCENT DECREASING TO 0 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1100, THEN MOSTLY
CLOUDY(50-60%) UNTIL 1400, THEN PARTLY
CLOUDY(40-50%). SLIGHT CHANCE OF SNOW AFTER
1100 UNTIL 1300. SLIGHT CHANCE OF RAIN AFTER
1200.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....42-48.
24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........49-59%.
24 HR TREND......4-7% WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 6-14 MPH. GUSTS UP TO 25 MPH IN
THE AFTERNOON.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH UNTIL 1100, THEN 20-25 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1400, THEN FAIR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. SOUTHWEST WINDS
7-14 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS
5-12 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE UPPER
40S. SOUTH WINDS 4-8 MPH.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE MID 40S. SOUTHWEST
WINDS 4-9 MPH.
COZ214-202315-
CENTRAL AND SOUTHEAST PARK COUNTY-
INCLUDING ELEVEN MILE CANYON RESERVOIR, FAIRPLAY, GUFFEY,
HARTSEL, LAKE GEORGE, AND SOUTH PARK
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%). SLIGHT CHANCE OF SNOW
UNTIL 1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....40-50.
24 HR TREND......4-7 DEGREES COOLER.
MIN HUMIDITY........31-41%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...BREEZY. WEST WINDS 14-24 MPH WITH GUSTS TO
AROUND 35 MPH.
RIDGES/UPR SLOPES....BREEZY. WEST WINDS 14-24 MPH WITH GUSTS TO
AROUND 40 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......5000-6000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 25 MPH UNTIL 0900, THEN 35-40 MPH
UNTIL 1600, THEN AROUND 30 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900, THEN GOOD UNTIL 1000, THEN
EXCELLENT UNTIL 1500, THEN VERY GOOD UNTIL
1600, THEN GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....23-29.
24 HR TREND......4-7 DEGREES COOLER.
MAX HUMIDITY........66-76%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 5-13 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
RIDGES/UPR SLOPES....WEST WINDS 6-14 MPH WITH GUSTS TO AROUND
25 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1500-2500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0800, THEN PARTLY CLOUDY
UNTIL 1400, THEN MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-53.
24 HR TREND......2-4 DEGREES WARMER.
MIN HUMIDITY........33-41%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 9-17 MPH. GUSTS UP TO 20
MPH INCREASING TO 35 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHWEST WINDS 11-19 MPH. GUSTS UP TO 25
MPH INCREASING TO 35 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1000, THEN WEST
25-30 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD UNTIL 1600, THEN
POOR.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. WEST WINDS
12-18 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE MID 50S. WEST WINDS
13-20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
LOWER 50S. WEST WINDS 5-12 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS AROUND
50. SOUTHWEST WINDS 10-17 MPH.
COZ218-202315-
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
INCLUDING CAMERON PASS, LARAMIE AND MEDICINE BOW MOUNTAINS,
RABBIT EARS RANGE, ROCKY MOUNTAIN NATIONAL PARK,
AND WILLOW CREEK PASS
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY BLOWING SNOW UNTIL
1100PATCHY BLOWING SNOW AFTER 1100. SNOW UNTIL
1400. SNOW LIKELY AFTER 1400.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....25-35.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........63-73%.
24 HR TREND......35-50% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 14-24 MPH. GUSTS UP TO 45 MPH
DECREASING TO 35 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....BREEZY. WEST WINDS 14-24 MPH. GUSTS UP TO
55 MPH DECREASING TO 45 MPH IN THE
AFTERNOON.
CWR.................60 PERCENT DECREASING TO 40 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......4000-5000 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 1100, THEN 25-30 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 0900, THEN GOOD UNTIL 1600, THEN
FAIR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). PATCHY BLOWING SNOW
UNTIL 1800PATCHY BLOWING SNOW AFTER 2200.
CHANCE OF SNOW UNTIL 2300. SLIGHT CHANCE OF
SNOW AFTER 2300.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....19-27.
24 HR TREND......2-4 DEGREES COOLER.
MAX HUMIDITY........82-92%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 10-20 MPH WITH GUSTS TO
AROUND 30 MPH.
RIDGES/UPR SLOPES....BREEZY. SOUTHWEST WINDS 13-23 MPH WITH
GUSTS TO AROUND 40 MPH.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1500-2500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15-20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 0800, THEN PARTLY
CLOUDY(40-50%) UNTIL 1100, THEN MOSTLY
CLOUDY(50-60%) UNTIL 1400, THEN PARTLY
CLOUDY(40-50%). PATCHY BLOWING SNOW. SLIGHT
CHANCE OF SNOW.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....32-42.
24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........58-68%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...BREEZY. SOUTHWEST WINDS 15-25 MPH WITH
GUSTS TO AROUND 35 MPH.
RIDGES/UPR SLOPES....WINDY. SOUTHWEST WINDS 17-27 MPH WITH
GUSTS TO AROUND 40 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 20-25 MPH UNTIL 1100, THEN 30-35 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1100. GOOD AFTER 1400.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. SOUTHWEST WINDS
14-24 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE LOWER 40S. SOUTHWEST WINDS
13-23 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
LOWER 40S. SOUTHWEST WINDS 8-15 MPH.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS
IN THE UPPER 20S. HIGHS IN THE UPPER 30S. SOUTHWEST WINDS
12-18 MPH.
COZ212-202315-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-
INCLUDING BERTHOUD PASS, BRECKENRIDGE,
EAST SLOPES MOSQUITO RANGE, EAST SLOPES SOUTHERN GORE RANGE,
EISENHOWER TUNNEL, INDIAN PEAKS, KENOSHA MOUNTAINS,
MOUNT BLUE SKY, PUMA HILLS, TARRYALL MOUNTAINS,
WILLIAMS FORK MOUNTAINS, AND WINTER PARK
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY(55-60%). PATCHY BLOWING SNOW.
SNOW UNTIL 1100, THEN SNOW LIKELY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....28-38.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........51-61%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...BREEZY. WEST WINDS 16-26 MPH WITH GUSTS TO
AROUND 50 MPH.
RIDGES/UPR SLOPES....WINDY. WEST WINDS 17-27 MPH. GUSTS UP TO
60 MPH DECREASING TO 50 MPH IN THE
AFTERNOON.
CWR.................40 PERCENT DECREASING TO 20 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......5000-6000 FT AGL.
TRANSPORT WINDS.....WEST 25-30 MPH UNTIL 1000. AROUND 25 MPH AFTER
1600.
SMOKE DISPERSAL.....FAIR UNTIL 0800, THEN VERY GOOD UNTIL 1600,
THEN GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2300, THEN PARTLY
CLOUDY(40-50%). PATCHY BLOWING SNOW UNTIL
1900PATCHY BLOWING SNOW AFTER 0100. CHANCE OF
SNOW UNTIL 2300. SLIGHT CHANCE OF SNOW AFTER
2300.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....18-28.
24 HR TREND......LITTLE CHANGE.
MAX HUMIDITY........71-81%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 10-18 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGES/UPR SLOPES....BREEZY. WEST WINDS 13-23 MPH WITH GUSTS TO
AROUND 40 MPH.
CWR.................10 PERCENT DECREASING TO 0 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%). PATCHY BLOWING SNOW.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....35-45.
24 HR TREND......10-15 DEGREES WARMER.
MIN HUMIDITY........48-58%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 12-22 MPH. GUSTS UP TO 30 MPH
INCREASING TO 40 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....BREEZY. WEST WINDS 14-24 MPH WITH GUSTS TO
AROUND 40 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......3500-4500 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 1100, THEN 30-35 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1300, THEN GOOD.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. WEST WINDS
14-24 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE LOWER 40S. WEST WINDS
14-24 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE LOWER
40S. WEST WINDS 7-14 MPH.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS
IN THE UPPER 20S. HIGHS IN THE LOWER 40S. WEST WINDS 12-18 MPH.
COZ217-202315-
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-
INCLUDING EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS,
AND RABBIT EARS PASS
327 AM MST SAT DEC 20 2025
TODAY
SKY/WEATHER.........MOSTLY CLOUDY. BLOWING SNOW UNTIL 1100PATCHY
BLOWING SNOW AFTER 1100. SNOW UNTIL 1400. SNOW
LIKELY AFTER 1400.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....27-37.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........60-70%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 13-23 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGES/UPR SLOPES....BREEZY. WEST WINDS 15-25 MPH. GUSTS UP TO
50 MPH DECREASING TO 40 MPH IN THE
AFTERNOON.
CWR.................70 PERCENT DECREASING TO 40 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......3500-4500 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 1200. AROUND 20 MPH AFTER
1600.
SMOKE DISPERSAL.....FAIR UNTIL 1000, THEN GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 2300, THEN
SLIGHT CHANCE OF SNOW.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-27.
24 HR TREND......2-4 DEGREES COOLER.
MAX HUMIDITY........87-97%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7-15 MPH WITH GUSTS TO
AROUND 25 MPH.
RIDGES/UPR SLOPES....SOUTHWEST WINDS 10-20 MPH WITH GUSTS TO
AROUND 35 MPH.
CWR.................20 PERCENT DECREASING TO 10 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1500-2500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15-20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 0800, THEN PARTLY
CLOUDY(40-50%) UNTIL 1100, THEN MOSTLY
CLOUDY(60-65%). PATCHY BLOWING SNOW. SLIGHT
CHANCE OF SNOW. SLIGHT CHANCE OF RAIN AFTER
1200.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....33-43.
24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........64-74%.
24 HR TREND......4-7% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 12-22 MPH WITH GUSTS TO
AROUND 40 MPH.
RIDGES/UPR SLOPES....WINDY. SOUTHWEST WINDS 16-26 MPH WITH
GUSTS TO AROUND 45 MPH.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 20-25 MPH UNTIL 1100, THEN 30-35 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1300, THEN GOOD.
SUNDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS. LOWS AROUND 30. SOUTHWEST WINDS 14-24 MPH.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. HIGHS IN
THE LOWER 40S. SOUTHWEST WINDS 13-20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
LOWER 40S. SOUTHWEST WINDS 7-14 MPH.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE
UPPER 20S. HIGHS AROUND 40. SOUTHWEST WINDS 12-18 MPH.
OUTLOOK 6 TO 10 DAYS
TEMPERATURES ABOVE NORMAL AND PRECIPITATION ABOVE NORMAL.
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