650
FNUS55 KGGW 221953
FWFGGW
FIRE WEATHER PLANNING FORECAST FOR NORTHEAST MONTANA
NATIONAL WEATHER SERVICE GLASGOW MT
153 PM MDT SAT AUG 22 2026
DISCUSSION
SEASONABLY HOT TEMPERATURES WITH A MIX OF WET AND DRY
THUNDERSTORMS ARE EXPECTED THROUGH MONDAY. TWO ROUNDS OF SHOWERS
AND THUNDERSTORMS BEGIN THIS EVENING WITH STEADIER SHOWERS WILL
SEE WETTING RAINS. STRONG TO SEVERE THUNDERSTORMS IN THE AFTERNOON
TOMORROW WILL BRING GUSTY, ERRATIC WINDS AND FREQUENT LIGHTNING.
AREAS THAT DIDN'T SEE RAIN THE NIGHT BEFORE MAY BE AT A HIGHER
RISK FOR LIGHTNING STARTS AS FUELS WILL CONTINUE TO DRY OUT WITH
HIGH TEMPERATURES AND STRONGER WINDS TOMORROW. THOUGH MIN RH
VALUES IN THE 20-40% RANGE AND GOOD OVERNIGHT RECOVERY WILL
MITIGATE FIRE WEATHER CONCERNS. WARM AND DRY CONDITIONS ARE
EXPECTED TO RESUME TUESDAY.
MTZ134-231015-
NORTHERN VALLEY AND NORTHERN PHILLIPS COUNTIES-
153 PM MDT SAT AUG 22 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....63-68.
MAX HUMIDITY........67-72 PERCENT.
20-FOOT WINDS.......SOUTHEAST WINDS 15 TO 25 MPH.
CWR (> 0.10 INCH)...10 PERCENT.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT). A SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....90-95.
MIN HUMIDITY........28-33 PERCENT.
20-FOOT WINDS.......SOUTHEAST WINDS 5 TO 15 MPH BECOMING SOUTHWEST
IN THE AFTERNOON.
CWR (> 0.10 INCH)...LESS THAN 10 PERCENT.
SUNDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (25-35 PERCENT). A CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING.
CHANCE OF THUNDER...50 PERCENT.
MIN TEMPERATURE.....57-62.
MAX HUMIDITY........66-71 PERCENT.
20-FOOT WINDS.......WEST WINDS 5 TO 15 MPH.
CWR (> 0.10 INCH)...10 PERCENT.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
SUNNY (5-15 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....80-85.
MIN HUMIDITY........28-33 PERCENT.
20-FOOT WINDS.......WEST WINDS 15 TO 25 MPH.
CWR (> 0.10 INCH)...ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S. NORTHWEST WINDS 10 TO 20 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
MID 80S. EAST WINDS 10 TO 15 MPH.
THURSDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. LOWS IN
THE UPPER 50S. HIGHS AROUND 90. SOUTHEAST WINDS 5 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 50S. HIGHS IN THE MID 80S.
SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE MID
80S.
MTZ135-231015-
THE LITTLE ROCKIES-
153 PM MDT SAT AUG 22 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....68-73 VALLEYS AND 62-67 RIDGES.
MAX HUMIDITY........58-63 PERCENT.
20-FOOT WINDS.......
LOWER ELEVATION......SOUTHEAST WINDS 5 TO 15 MPH BECOMING
VARIABLE LESS THAN 5 MPH LATE IN THE
NIGHT.
RIDGE............SOUTHEAST WINDS 10 TO 20 MPH BECOMING WEST 5
TO 10 MPH LATE IN THE NIGHT.
CWR (> 0.10 INCH)...LESS THAN 10 PERCENT.
SUNDAY
SKY/WEATHER.........A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....94-99 VALLEYS AND 83-88 RIDGES.
MIN HUMIDITY........23-28 PERCENT.
20-FOOT WINDS.......
LOWER ELEVATION......WEST WINDS 5 TO 15 MPH.
RIDGE............WEST WINDS 5 TO 15 MPH.
CWR (> 0.10 INCH)...10 PERCENT.
SUNDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
MOSTLY CLEAR (15-25 PERCENT). A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....58-63.
MAX HUMIDITY........45-50 PERCENT.
20-FOOT WINDS.......
LOWER ELEVATION......WEST WINDS 10 TO 15 MPH.
RIDGE............WEST WINDS 10 TO 15 MPH.
CWR (> 0.10 INCH)...10 PERCENT.
MONDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....82-87 VALLEYS AND 72-77 RIDGES.
MIN HUMIDITY........25-30 PERCENT.
20-FOOT WINDS.......
LOWER ELEVATION......WEST WINDS 5 TO 15 MPH.
RIDGE............WEST WINDS 5 TO 15 MPH.
CWR (> 0.10 INCH)...ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE
LOWER 80S. NORTHWEST WINDS 10 TO 15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE
MID 80S. EAST WINDS 5 TO 15 MPH.
THURSDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS 5 TO
15 MPH.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. LOWS IN THE
LOWER 60S. HIGHS IN THE LOWER 80S.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
LOWER 80S.
MTZ136-231015-
THE LOWER MISSOURI RIVER BREAKS INCLUDING THE CHARLES M RUSSELL
NATIONAL WILDLIFE REFUGE-
153 PM MDT SAT AUG 22 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). A SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....66-71.
MAX HUMIDITY........68-73 PERCENT.
20-FOOT WINDS.......
LOWER ELEVATION......SOUTHEAST WINDS 10 TO 20 MPH BECOMING
SOUTH 5 TO 10 MPH LATE IN THE NIGHT.
RIDGE............SOUTHEAST WINDS 10 TO 20 MPH.
CWR (> 0.10 INCH)...10 PERCENT.
SUNDAY
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....92-97.
MIN HUMIDITY........26-31 PERCENT.
20-FOOT WINDS.......
LOWER ELEVATION......UPSLOPE/UPVALLEY 2-5 MPH.
RIDGE............WEST WINDS 5 TO 10 MPH.
CWR (> 0.10 INCH)...10 PERCENT.
SUNDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
PARTLY CLOUDY (25-35 PERCENT). A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....61-66.
MAX HUMIDITY........57-62 PERCENT.
20-FOOT WINDS.......
LOWER ELEVATION......WEST WINDS 10 TO 15 MPH.
RIDGE............WEST WINDS 10 TO 15 MPH.
CWR (> 0.10 INCH)...10 PERCENT.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING
SUNNY (0-10 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....81-86.
MIN HUMIDITY........23-28 PERCENT.
20-FOOT WINDS.......
LOWER ELEVATION......NORTHWEST WINDS 10 TO 20 MPH.
RIDGE............NORTHWEST WINDS 10 TO 20 MPH.
CWR (> 0.10 INCH)...ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE
LOWER 80S. NORTHWEST WINDS 10 TO 20 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE
UPPER 80S. EAST WINDS 10 TO 15 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE LOWER 60S. HIGHS IN THE
LOWER 90S. SOUTHEAST WINDS 5 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. LOWS IN THE
LOWER 60S. HIGHS IN THE MID 80S.
SATURDAY
PARTLY CLOUDY. LOWS AROUND 60. HIGHS IN THE MID 80S.
MTZ137-231015-
SOUTHERN PETROLEUM AND SOUTHERN GARFIELD COUNTIES-
153 PM MDT SAT AUG 22 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). A SLIGHT CHANCE
OF SHOWERS IN THE EVENING, THEN A SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....65-70.
MAX HUMIDITY........69-74 PERCENT.
20-FOOT WINDS.......
LOWER ELEVATION......SOUTHEAST WINDS 10 TO 20 MPH.
RIDGE............SOUTHEAST WINDS 10 TO 20 MPH BECOMING SOUTH
AFTER MIDNIGHT.
CWR (> 0.10 INCH)...10 PERCENT.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY (45-55 PERCENT). A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....92-97.
MIN HUMIDITY........22-27 PERCENT.
20-FOOT WINDS.......
LOWER ELEVATION......UPSLOPE/UPVALLEY 5-10 MPH.
RIDGE............WEST WINDS 5 TO 10 MPH.
CWR (> 0.10 INCH)...10 PERCENT.
SUNDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
PARTLY CLOUDY (25-35 PERCENT). A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....59-64.
MAX HUMIDITY........58-63 PERCENT.
20-FOOT WINDS.......
LOWER ELEVATION......NORTHWEST WINDS 10 TO 15 MPH.
RIDGE............NORTHWEST WINDS 10 TO 15 MPH.
CWR (> 0.10 INCH)...10 PERCENT.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
SUNNY (0-10 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....81-86.
MIN HUMIDITY........20-25 PERCENT.
20-FOOT WINDS.......
LOWER ELEVATION......NORTHWEST WINDS 5 TO 15 MPH.
RIDGE............NORTHWEST WINDS 5 TO 15 MPH.
CWR (> 0.10 INCH)...ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S. NORTHWEST WINDS 10 TO 15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE
UPPER 80S. EAST WINDS 10 TO 15 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE LOWER 60S. HIGHS IN THE
LOWER 90S. SOUTHEAST WINDS 5 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. LOWS IN THE
LOWER 60S. HIGHS IN THE MID 80S.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
MID 80S.
MTZ120-231015-
FORT PECK RESERVATION AND DANIELS/ROOSEVELT/SHERIDAN COUNTIES-
153 PM MDT SAT AUG 22 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....61-66.
MAX HUMIDITY........64-69 PERCENT.
20-FOOT WINDS.......SOUTHEAST WINDS 10 TO 20 MPH.
CWR (> 0.10 INCH)...10 PERCENT.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT). A CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE MORNING, THEN
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON.
CHANCE OF THUNDER...50 PERCENT.
MAX TEMPERATURE.....86-91.
MIN HUMIDITY........44-49 PERCENT.
20-FOOT WINDS.......SOUTHEAST WINDS 10 TO 20 MPH.
CWR (> 0.10 INCH)...20 PERCENT.
SUNDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING, THEN A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....57-62.
MAX HUMIDITY........86-91 PERCENT.
20-FOOT WINDS.......SOUTHEAST WINDS 5 TO 15 MPH BECOMING WEST 5 TO
10 MPH EARLY IN THE MORNING.
CWR (> 0.10 INCH)...20 PERCENT.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
SUNNY (5-15 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....80-85.
MIN HUMIDITY........29-34 PERCENT.
20-FOOT WINDS.......WEST WINDS 5 TO 15 MPH INCREASING TO 15 TO 25
MPH IN THE AFTERNOON.
CWR (> 0.10 INCH)...ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S. NORTHWEST WINDS 15 TO 25 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 80S. NORTH WINDS 10 TO 20 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE
UPPER 80S. SOUTHEAST WINDS 5 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND A SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.
SATURDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. LOWS IN
THE MID 50S. HIGHS IN THE MID 80S.
MTZ122-231015-
DAWSON/MCCONE/PRAIRIE/RICHLAND/WIBAUX COUNTIES-
153 PM MDT SAT AUG 22 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....63-68.
MAX HUMIDITY........68-73 PERCENT.
20-FOOT WINDS.......SOUTHEAST WINDS 10 TO 20 MPH.
CWR (> 0.10 INCH)...10 PERCENT.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY (45-55 PERCENT). A CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE MORNING.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....89-94.
MIN HUMIDITY........37-42 PERCENT.
20-FOOT WINDS.......SOUTHEAST WINDS 10 TO 20 MPH BECOMING SOUTH 5
TO 15 MPH LATE IN THE AFTERNOON.
CWR (> 0.10 INCH)...10 PERCENT.
SUNDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (40-50 PERCENT). A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....60-65.
MAX HUMIDITY........77-82 PERCENT.
20-FOOT WINDS.......EAST WINDS 5 TO 10 MPH BECOMING WEST AFTER
MIDNIGHT.
CWR (> 0.10 INCH)...20 PERCENT.
MONDAY
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
SUNNY (5-15 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....82-87.
MIN HUMIDITY........23-28 PERCENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 20 MPH.
CWR (> 0.10 INCH)...ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S. NORTHWEST WINDS 10 TO 20 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
MID 80S. NORTHEAST WINDS 10 TO 15 MPH.
THURSDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. LOWS IN
THE UPPER 50S. HIGHS AROUND 90. EAST WINDS 5 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 60. HIGHS IN THE UPPER 80S.
SATURDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. LOWS IN
THE UPPER 50S. HIGHS IN THE UPPER 80S.
WEATHER.GOV/GLASGOW
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