Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

JETTE (JETM8)

Lat: 47.76706°NLon: 114.23378°WElev: 3593.0ft.

NA

43°F

6°C

Humidity 100%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 20 May 12:43 AM MDT
Extended Forecast for

Polson MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 41. South wind 3 to 5 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 5pm, then a chance of showers and thunderstorms after 5pm.  Mostly cloudy, with a high near 61. Light and variable wind becoming north around 6 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and 11pm.  Mostly cloudy, with a low around 37. North northwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 50%.

    Low: 37 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 66. Light north wind.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 41. South wind 3 to 5 mph.
Wednesday
A chance of rain and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 61. Light and variable wind becoming north around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and 11pm. Mostly cloudy, with a low around 37. North northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Thursday
Sunny, with a high near 66. Light north wind.
Thursday Night
Partly cloudy, with a low around 42. Calm wind.
Friday
Mostly sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 46.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 50.
Memorial Day
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74.
Monday Night
A chance of rain. Mostly cloudy, with a low around 45.
Tuesday
A chance of rain. Partly sunny, with a high near 63.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Polson MT
 47.69°N 114.13°W (Elev. 3127 ft)
12:21 am MDT May 20, 2026
1am MDT May 20, 2026-6pm MDT May 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database