National Weather Service Forecast for: Kalispell MT
Issued by: National Weather Service Missoula, MT
Updated: 2:01 pm MDT Sep 12, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 45. Calm wind becoming northwest 5 to 8 mph in the evening.
Partly Cloudy

 Sunday

Sunday: Rain and possibly a thunderstorm before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 59. Northwest wind around 6 mph becoming calm. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers

 Sunday
Night
Sunday Night: Rain, mainly after 2am. Low around 45. South wind around 6 mph. Chance of precipitation is 80%.
Chance Rain
then Rain
 Monday

Monday: A 50 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 58. South southwest wind around 6 mph.
Chance Rain
then Slight
Chance Rain
 Monday
Night
Monday Night: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 44. South southwest wind around 6 mph becoming calm in the evening.
Mostly Cloudy
then Patchy
Fog
 Tuesday

Tuesday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 61.
Patchy Fog
then Mostly
Cloudy
 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 44.
Mostly Cloudy

 Wednesday

Wednesday: Mostly sunny, with a high near 64.
Mostly Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 43.
Mostly Clear
Lo 45 °F Hi 59 °F Lo 45 °F Hi 58 °F Lo 44 °F Hi 61 °F Lo 44 °F Hi 64 °F Lo 43 °F

 

Tonight
 
 Partly cloudy, with a low around 45. Calm wind becoming northwest 5 to 8 mph in the evening.
Sunday
 
 Rain and possibly a thunderstorm before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 59. Northwest wind around 6 mph becoming calm. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
 
 Rain, mainly after 2am. Low around 45. South wind around 6 mph. Chance of precipitation is 80%.
Monday
 
 A 50 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 58. South southwest wind around 6 mph.
Monday Night
 
 Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 44. South southwest wind around 6 mph becoming calm in the evening.
Tuesday
 
 Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 61.
Tuesday Night
 
 Mostly cloudy, with a low around 44.
Wednesday
 
 Mostly sunny, with a high near 64.
Wednesday Night
 
 Mostly clear, with a low around 43.
Thursday
 
 Sunny, with a high near 68.
Thursday Night
 
 Clear, with a low around 45.
Friday
 
 Sunny, with a high near 71.
Friday Night
 
 Mostly clear, with a low around 47.
Saturday
 
 Mostly sunny, with a high near 72.

 

Forecast from NOAA-NWS for Kalispell MT.