National Weather Service Forecast for: Polson MT
Issued by: National Weather Service Missoula, MT
Updated: 12:21 am MDT Jun 30, 2026
 
Overnight

Overnight: Rain likely, mainly before 3am. Mostly cloudy, with a low around 48. South wind 5 to 7 mph. Chance of precipitation is 70%.
Rain Likely

 Tuesday

Tuesday: A slight chance of rain, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 72. Light and variable wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%.
Slight Chance
Rain then
Chance
T-storms
 Tuesday
Night
Tuesday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain between 9pm and 10pm. Partly cloudy, with a low around 50. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Slight Chance
T-storms then
Mostly Cloudy
 Wednesday

Wednesday: Sunny, with a high near 75. Calm wind becoming south southwest around 6 mph in the afternoon.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 49. South wind around 5 mph becoming calm in the evening.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 77.
Sunny

 Thursday
Night
Thursday Night: Partly cloudy, with a low around 51.
Partly Cloudy

 Friday

Friday: Mostly sunny, with a high near 77.
Mostly Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 50.
Mostly Clear
Lo 48 °F Hi 72 °F Lo 50 °F Hi 75 °F Lo 49 °F Hi 77 °F Lo 51 °F Hi 77 °F Lo 50 °F

Flood Watch
Hydrologic Outlook
 

Overnight
 
 Rain likely, mainly before 3am. Mostly cloudy, with a low around 48. South wind 5 to 7 mph. Chance of precipitation is 70%.
Tuesday
 
 A slight chance of rain, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 72. Light and variable wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%.
Tuesday Night
 
 A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain between 9pm and 10pm. Partly cloudy, with a low around 50. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Wednesday
 
 Sunny, with a high near 75. Calm wind becoming south southwest around 6 mph in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 49. South wind around 5 mph becoming calm in the evening.
Thursday
 
 Sunny, with a high near 77.
Thursday Night
 
 Partly cloudy, with a low around 51.
Friday
 
 Mostly sunny, with a high near 77.
Friday Night
 
 Mostly clear, with a low around 50.
Independence Day
 
 Sunny, with a high near 81.
Saturday Night
 
 Mostly clear, with a low around 53.
Sunday
 
 Sunny, with a high near 86.
Sunday Night
 
 Mostly clear, with a low around 56.
Monday
 
 Mostly sunny, with a high near 87.

 

Forecast from NOAA-NWS for Polson MT.