218
FNUS55 KMSO 301947
FWFMSO
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO
NATIONAL WEATHER SERVICE MISSOULA MT
147 PM MDT THU JUL 30 2026
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY
EVENING FOR PORTIONS OF PALOUSE/HELLS CANYON...CLEARWATER/NEZ PERCE...
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING FOR PORTIONS OF KOOTENAI...FLATHEAD/GLACIER
PARK...WEST LOLO...FLATHEAD RESERVATION...EAST LOLO...BITTERROOT...
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SUNDAY
EVENING FOR PORTIONS OF DEERLODGE/WEST BEAVERHEAD...EAST BEAVERHEAD...
DISCUSSION
IDAHO (ZONES 102 AND 103): HOT, DRY, AND BREEZY CONDITIONS CONTINUE
THROUGH FRIDAY UNDER A RIDGE OF HIGH PRESSURE. A FIRE WEATHER WATCH IS
IN EFFECT FOR SATURDAY AFTERNOON THROUGH THE EVENING. A STRONG DRY COLD
FRONT WILL BRING WIDESPREAD WESTERLY WINDS GUSTING 25 TO 40 MPH WITH
MINIMUM RELATIVE HUMIDITIES IN THE MID TO LOW TEENS. COOLER TEMPERATURES
AND MODERATE RH RECOVERY ARRIVE ON SUNDAY BEHIND THE FRONT, THOUGH
WINDS REMAIN BREEZY.
NORTHWEST MT (ZONES 104 AND 105): HOT AND DRY CONDITIONS CONTINUE
THROUGH FRIDAY. A FIRE WEATHER WATCH IS IN EFFECT FOR SATURDAY
AFTERNOON THROUGH THE EVENING. WESTERLY WIND GUSTS OF 25 TO 45 MPH WITH
ISOLATED GUSTS TO 50 MPH IN THE HIGHER ELEVATIONS ALONG THE CONTINENTAL
DIVIDE COMBINED WITH RELATIVE HUMIDITIES IN THE TEENS AND LOW 20% RANGE
WILL CREATE CRITICAL FIRE WEATHER CONDITIONS. THE DRY COLD FRONT
SATURDAY NIGHT BRINGS COOLER TEMPERATURES AND IMPROVED RH FOR SUNDAY
THOUGH BREEZY STRONG WINDS WILL PERSIST ESPECIALLY IN HIGHER TERRAIN.
WEST CENTRAL MT (ZONES 106, 107 AND 108): HOT AND DRY CONDITIONS
PERSIST. A THREAT FOR DRY THUNDERSTORMS DEVELOPS THIS AFTERNOON AND
EVENING, EXPANDING INTO THE SAPPHIRE MTNS (ZONE 108), BRINGING A RISK OF
LIGHTNING AND STRONG, GUSTY, ERRATIC OUTFLOW WINDS. A FIRE WEATHER
WATCH IS IN EFFECT FOR SATURDAY AFTERNOON THROUGH THE EVENING DUE TO
WIDESPREAD WESTERLY WIND GUSTS OF 25 TO 45 MPH AND MINIMUM RH IN THE
TEENS AHEAD OF THE DRY COLD FRONT. COOLER TEMPERATURES AND IMPROVED RH
TO FOLLOW THOUGH WINDS REMAIN GUSTY THROUGH SUNDAY.
SOUTHWEST MT (ZONES 109, 110 AND 111): ISOLATED DRY THUNDERSTORMS ARE
POSSIBLE GENERALLY SOUTH AND EAST OF STEVENSVILLE. MAIN HAZARDS WILL BE
DRY LIGHTNING AND STRONG ERRATIC OUTFLOW GUSTS. A FIRE WEATHER WATCH
IS IN EFFECT FROM SATURDAY AFTERNOON THROUGH SUNDAY EVENING. EXTREMELY
HOT AND DRY CONDITIONS (MINIMUM RH IN THE SINGLE DIGITS AND TEENS)
COMBINED WITH WIDESPREAD STRONG WESTERLY WIND GUSTS UP TO 45 MPH WILL
CREATE CRITICAL FIRE WEATHER CONDITIONS. CRITICAL HEAT, LOW RH, AND
STRONG WINDS WILL PERSIST THROUGH SUNDAY EVENING BEFORE COOLER AIR
ARRIVES AND POST- FRONTAL WINDS SUBSIDE. AN EXCEPTION WILL BE ON
SATURDAY NIGHT, RH RECOVERS INTO THE 30-40% RANGE ABOVE VALLEY FLOORS
AND WINDS DECREASE SLIGHTLY, REMAINING GUSTY AT ELEVATION THOUGH.
VIEW WEATHER BRIEFING VIDEOS ON OUR YOUTUBE CHANNEL
AT HTTPS://WWW.YOUTUBE.COM/NWSMISSOULA
IDZ102-103-312000-
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-
1247 PM PDT THU JUL 30 2026
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY
EVENING...
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE.
* MIN TEMPERATURE.....55-65 VALLEYS AND 48-58 RIDGES.
* MAX HUMIDITY........61-71 PERCENT VALLEYS AND 46-56 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 10-15 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 5-10 MPH.
* RIDGE TOP............NORTHWEST 5-15 MPH.
* MIXING HEIGHT.......5 KFT AGL UNTIL 2000. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....NORTHWEST 10 MPH UNTIL 0500, THEN VARIABLE
LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
* MAX TEMPERATURE.....95-105 VALLEYS AND 80-90 RIDGES.
* MIN HUMIDITY........10-20 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING NORTHWEST 10-15 MPH IN THE
AFTERNOON.
* RIDGE TOP............SOUTHEAST UP TO 5 MPH BECOMING NORTHWEST
5-10 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1100. 7 KFT AGL AFTER 1500.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1100. WEST 10
MPH AFTER 1300.
* CHANCE LIGHTNING....0 PERCENT OVER THE PALOUSE/HELLS CANYON...AND
NEAR 0 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
* CWR (> 0.10 INCH)...0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.
* MIN TEMPERATURE.....55-65.
* MAX HUMIDITY........50-60 PERCENT VALLEYS AND 41-51 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTH 10-15 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 5-10 MPH.
* RIDGE TOP............NORTH 5-10 MPH BECOMING SOUTHEAST AFTER
MIDNIGHT.
* MIXING HEIGHT.......5 KFT AGL UNTIL 2000, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....NORTH 10 MPH UNTIL 2200. VARIABLE LESS THAN
10 MPH AFTER 0500.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
* MAX TEMPERATURE.....93-103 VALLEYS AND 75-85 RIDGES.
* MIN HUMIDITY........11-21 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING NORTHWEST 10-20 MPH IN THE
AFTERNOON.
* RIDGE TOP............SOUTH 5-10 MPH BECOMING WEST 15-25 MPH IN
THE AFTERNOON.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000. 9 KFT
AGL AFTER 1400.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH UNTIL 1300, THEN WEST 15
MPH.
* CHANCE LIGHTNING....0 PERCENT OVER THE PALOUSE/HELLS CANYON...AND
NEAR 0 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
NOT AS WARM. MOSTLY CLEAR. LOWS 50-60. HIGHS 70-80. MIN
HUMIDITIES 10-20 PERCENT. WEST WINDS 10-20 MPH.
MONDAY
CLEAR. LOWS 45-55. HIGHS 75-85. MIN HUMIDITIES 15-25 PERCENT.
NORTHWEST WINDS 10-15 MPH.
TUESDAY
CLEAR. LOWS 50-60. HIGHS 80-90. NORTHEAST WINDS 5-10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 55-65. HIGHS 85-95.
THURSDAY
MOSTLY CLEAR. LOWS 55-65. HIGHS 80-90.
MTZ104-105-312000-
KOOTENAI-FLATHEAD/GLACIER PARK-
147 PM MDT THU JUL 30 2026
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING...
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.
* MIN TEMPERATURE.....50-55.
* MAX HUMIDITY........69-79 PERCENT VALLEYS AND 41-51 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............WEST 5-15 MPH.
* MIXING HEIGHT.......8 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....WEST 15 MPH UNTIL 0100, THEN SOUTHWEST 10
MPH.
* CHANCE LIGHTNING....0 PERCENT OVER THE KOOTENAI...AND NEAR 0
PERCENT TOWARD THE FLATHEAD/GLACIER PARK.
* CWR (> 0.10 INCH)...0 PERCENT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
* MAX TEMPERATURE.....90-95 VALLEYS AND 75-85 RIDGES.
* MIN HUMIDITY........11-21 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 5-15 MPH.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000. 7 KFT
AGL AFTER 1500.
* TRANSPORT WINDS.....WEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.
* MIN TEMPERATURE.....55-60.
* MAX HUMIDITY........56-66 PERCENT VALLEYS AND 33-43 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............SOUTHWEST 5-15 MPH BECOMING SOUTHEAST AFTER
MIDNIGHT.
* MIXING HEIGHT.......5 KFT AGL UNTIL 2000, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH UNTIL 2200, THEN SOUTHEAST
10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE IN THE MORNING.
* MAX TEMPERATURE.....90-95 VALLEYS AND 75-80 RIDGES.
* MIN HUMIDITY........10-15 PERCENT VALLEYS AND 14-24 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING NORTHWEST 15-25 MPH IN THE
AFTERNOON.
* RIDGE TOP............SOUTHEAST 5-15 MPH INCREASING TO SOUTHWEST
20-30 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000. 11 KFT
AGL AFTER 1400.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1100, THEN SOUTHWEST 15
MPH UNTIL 1300, THEN 25 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
COOLER. MOSTLY CLEAR. LOWS 50-60. HIGHS 65-75. MIN HUMIDITIES
15-25 PERCENT. SOUTHWEST WINDS 20-30 MPH.
MONDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 65-75. MIN HUMIDITIES
10-20 PERCENT. NORTHWEST WINDS 10-20 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 75-85. NORTHEAST WINDS
5-10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90.
THURSDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90.
MTZ106-108-312000-
WEST LOLO-EAST LOLO-
147 PM MDT THU JUL 30 2026
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING...
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. PATCHY SMOKE.
* MIN TEMPERATURE.....50-60.
* MAX HUMIDITY........64-74 PERCENT VALLEYS AND 49-59 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 10-15 MPH.
* RIDGE TOP............WEST 10-15 MPH.
* MIXING HEIGHT.......8 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....WEST 15 MPH UNTIL 2200, THEN VARIABLE LESS
THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT OVER THE WEST LOLO...AND 20
PERCENT TOWARD THE EAST LOLO.
* CWR (> 0.10 INCH)...0 PERCENT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
* MAX TEMPERATURE.....83-93.
* MIN HUMIDITY........10-15 PERCENT VALLEYS AND 11-21 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............WEST 5-10 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000. 8 KFT
AGL AFTER 1400.
* TRANSPORT WINDS.....WEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.
* MIN TEMPERATURE.....55-60.
* MAX HUMIDITY........48-58 PERCENT VALLEYS AND 37-47 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............NORTHWEST 5-10 MPH BECOMING SOUTHEAST AFTER
MIDNIGHT.
* MIXING HEIGHT.......7 KFT AGL UNTIL 2000, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....WEST 10 MPH UNTIL 2100, THEN VARIABLE LESS
THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
* MAX TEMPERATURE.....88-98 VALLEYS AND 80-90 RIDGES.
* MIN HUMIDITY........9-19 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING SOUTHWEST 15-25 MPH IN THE
AFTERNOON.
* RIDGE TOP............SOUTH 5-10 MPH BECOMING SOUTHWEST 20-30 MPH
IN THE AFTERNOON.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000. GREATER
THAN 12 KFT AGL AFTER 1500.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1100, THEN SOUTHWEST 15
MPH UNTIL 1400, THEN 20 MPH.
* CHANCE LIGHTNING....0 PERCENT OVER THE WEST LOLO...AND NEAR 0
PERCENT TOWARD THE EAST LOLO.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
NOT AS WARM. MOSTLY CLEAR. LOWS 50-60. HIGHS 70-80. MIN
HUMIDITIES 10-20 PERCENT. WEST WINDS 15-25 MPH.
MONDAY
CLEAR. LOWS 45-55. HIGHS 70-80. MIN HUMIDITIES 10-20 PERCENT.
NORTHWEST WINDS 10-15 MPH.
TUESDAY
CLEAR. LOWS 45-55. HIGHS 75-85. NORTHEAST WINDS 5-10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90.
THURSDAY
MOSTLY CLEAR. LOWS 55-65. HIGHS 80-90.
MTZ107-312000-
FLATHEAD RESERVATION-
147 PM MDT THU JUL 30 2026
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING...
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.
* MIN TEMPERATURE.....55-60.
* MAX HUMIDITY........65-75 PERCENT VALLEYS AND 46-56 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 10-15 MPH.
* RIDGE TOP............WEST 10-15 MPH.
* MIXING HEIGHT.......9 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....WEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
* MAX TEMPERATURE.....95-100 VALLEYS AND 70-75 RIDGES.
* MIN HUMIDITY........11-18 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............WEST 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000. 8 KFT
AGL AFTER 1400.
* TRANSPORT WINDS.....WEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.
* MIN TEMPERATURE.....55-65.
* MAX HUMIDITY........53-63 PERCENT VALLEYS AND 40-50 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTH 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............NORTH 5-10 MPH BECOMING SOUTHEAST 5-15 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......6 KFT AGL UNTIL 2000, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH UNTIL 2000, THEN VARIABLE
LESS THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE.
* MAX TEMPERATURE.....95-100 VALLEYS AND 75-80 RIDGES.
* MIN HUMIDITY........10-17 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING SOUTHWEST 15-25 MPH IN THE
AFTERNOON.
* RIDGE TOP............SOUTHEAST 5-15 MPH INCREASING TO SOUTHWEST
20-30 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000, THEN 2 KFT
AGL UNTIL 1100, THEN 4 KFT AGL UNTIL 1200, THEN 6 KFT AGL UNTIL 1300,
THEN 8 KFT AGL UNTIL 1400, THEN 11 KFT AGL UNTIL 1700, THEN 10 KFT
AGL.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 0800, THEN
SOUTH 10 MPH UNTIL 1300, THEN SOUTHWEST 20 MPH UNTIL 1600, THEN
25 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
NOT AS WARM. MOSTLY CLEAR. LOWS 55-65. HIGHS 75-85. MIN
HUMIDITIES 10-20 PERCENT. WEST WINDS 15-25 MPH.
MONDAY
CLEAR. LOWS 45-55. HIGHS 70-80. MIN HUMIDITIES 10-20 PERCENT.
NORTHWEST WINDS 10-20 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90. NORTHEAST WINDS
5-10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 85-95.
THURSDAY
MOSTLY CLEAR. LOWS 55-65. HIGHS 85-95.
MTZ109-312000-
BITTERROOT-
147 PM MDT THU JUL 30 2026
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING...
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
AND THUNDERSTORMS IN THE EVENING. PATCHY SMOKE.
* MIN TEMPERATURE.....50-60.
* MAX HUMIDITY........76-86 PERCENT VALLEYS AND 55-65 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 10-15 MPH.
* RIDGE TOP............NORTHWEST 10-15 MPH.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....NORTHWEST 10 MPH UNTIL 2100, THEN VARIABLE
LESS THAN 10 MPH.
* CHANCE LIGHTNING....15 PERCENT OVER THE DARBY, SULA, AND WEST
FORK DISTRICTS...AND 20 PERCENT TOWARD AREAS NORTH OF HAMILTON.
* CWR (> 0.10 INCH)...0 PERCENT.
FRIDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
* MAX TEMPERATURE.....95-100 VALLEYS AND 80-85 RIDGES.
* MIN HUMIDITY........10-20 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING NORTHWEST 5-15 MPH IN THE
AFTERNOON.
* RIDGE TOP............SOUTHWEST UP TO 5 MPH BECOMING WEST 5-10 MPH
IN THE AFTERNOON.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000. 10 KFT
AGL AFTER 1400.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1100, THEN
WEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR. PATCHY SMOKE.
* MIN TEMPERATURE.....55-65.
* MAX HUMIDITY........55-65 PERCENT VALLEYS AND 39-49 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTH 10-15 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 5-10 MPH.
* RIDGE TOP............NORTH 5-10 MPH BECOMING SOUTHEAST AFTER
MIDNIGHT.
* MIXING HEIGHT.......7 KFT AGL UNTIL 2000, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 MPH UNTIL 2000. VARIABLE LESS
THAN 10 MPH AFTER 0300.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE.
* MAX TEMPERATURE.....95-100 VALLEYS AND 80-85 RIDGES.
* MIN HUMIDITY........8-14 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 5-15 MPH BECOMING WEST 15-25 MPH IN
THE AFTERNOON.
* RIDGE TOP............SOUTHWEST 10-20 MPH BECOMING WEST 20-30 MPH
IN THE AFTERNOON.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000, THEN 4
KFT AGL UNTIL 1100, THEN 7 KFT AGL UNTIL 1200, THEN 10 KFT AGL
UNTIL 1300, THEN GREATER THAN 12 KFT AGL UNTIL 1700, THEN 10 KFT
AGL.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 1400, THEN SOUTHWEST 20
MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
NOT AS WARM. MOSTLY CLEAR. LOWS 50-60. HIGHS 70-80. MIN
HUMIDITIES 10-20 PERCENT. WEST WINDS 15-25 MPH.
MONDAY
CLEAR. LOWS 45-55. HIGHS 70-80. MIN HUMIDITIES 15-25 PERCENT.
NORTHWEST WINDS 10-15 MPH.
TUESDAY
CLEAR. LOWS 45-55. HIGHS 75-85. NORTHEAST WINDS 5-10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90.
THURSDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90.
MTZ110-111-312000-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
147 PM MDT THU JUL 30 2026
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SUNDAY
EVENING...
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE. SLIGHT CHANCE OF
RAIN SHOWERS AND THUNDERSTORMS.
* MIN TEMPERATURE.....43-53 VALLEYS AND 50-55 RIDGES.
* MAX HUMIDITY........79-89 PERCENT VALLEYS AND 53-63 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 15-25 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 5-10 MPH.
* RIDGE TOP............SOUTHWEST 15-25 MPH BECOMING SOUTH 5-10 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......10 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH UNTIL 2100, THEN VARIABLE
LESS THAN 10 MPH.
* CHANCE LIGHTNING....20 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE.
* MAX TEMPERATURE.....85-95 VALLEYS AND 75-80 RIDGES.
* MIN HUMIDITY........12-19 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING WEST 10-15 MPH IN THE
AFTERNOON.
* RIDGE TOP............WEST 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000. 11 KFT
AGL AFTER 1400.
* TRANSPORT WINDS.....WEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE.
* MIN TEMPERATURE.....43-53 VALLEYS AND 50-60 RIDGES.
* MAX HUMIDITY........61-71 PERCENT VALLEYS AND 40-50 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTH 10-15 MPH BECOMING SOUTH 5-10 MPH
AFTER MIDNIGHT.
* RIDGE TOP............NORTH 10-15 MPH BECOMING SOUTHEAST 5-10 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......10 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....WEST 10 MPH UNTIL 2000, THEN EAST 10 MPH
UNTIL 0200, THEN VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT OVER THE DEERLODGE/WEST
BEAVERHEAD...AND 0 PERCENT TOWARD THE EAST BEAVERHEAD.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE IN THE MORNING.
* MAX TEMPERATURE.....90-100 VALLEYS AND 80-85 RIDGES.
* MIN HUMIDITY........8-13 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING SOUTHWEST 15-25 MPH IN THE
AFTERNOON.
* RIDGE TOP............SOUTH 20-30 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000. GREATER THAN 12 KFT
AGL AFTER 1400.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH UNTIL 1300, THEN 20 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT OVER THE DEERLODGE/WEST
BEAVERHEAD...AND 0 PERCENT TOWARD THE EAST BEAVERHEAD.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
NOT AS WARM. MOSTLY CLEAR. LOWS 55-65. HIGHS 80-90. MIN
HUMIDITIES 15-25 PERCENT. WEST WINDS 10-20 MPH.
MONDAY
NOT AS WARM. CLEAR. LOWS 45-55. HIGHS 70-80. MIN HUMIDITIES
10-20 PERCENT. NORTHWEST WINDS 15-25 MPH.
TUESDAY
CLEAR. LOWS 40-50. HIGHS 75-85. NORTHEAST WINDS 10-15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90.
THURSDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90.
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