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

STEVI (STVM8)

Lat: 46.55653°NLon: 114.07436°WElev: 3205.0ft.

NA

30°F

-1°C

Humidity 97%
Wind Speed SE 1 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 19 May 06:14 AM MDT
Extended Forecast for

Stevensville MT

Frost Advisory until May 19, 09:00am
Click here for hazard details and duration
...
  •  
    Frost Advisory until May 19, 09:00am

    NOW until 9:00am Tue

    Frost Advisory

  • Today

    High: 66 °F

    Frost then
    Slight Chance
    Rain

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. Northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm.  Mostly cloudy, with a high near 66. Calm wind becoming north northwest around 6 mph in the afternoon.  Chance of precipitation is 70%.

    High: 66 °F

    Mostly Cloudy
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight.  Mostly cloudy, with a low around 36. North northwest wind 5 to 8 mph becoming calm  in the evening.  Chance of precipitation is 70%.

    Low: 36 °F

    Showers
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 69. Light north wind.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Today
A 20 percent chance of rain after noon. Widespread frost before 8am. Otherwise, partly sunny, with a high near 66. Calm wind becoming west southwest around 6 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 36. Northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
A chance of rain before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 66. Calm wind becoming north northwest around 6 mph in the afternoon. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight. Mostly cloudy, with a low around 36. North northwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 70%.
Thursday
Mostly sunny, with a high near 69. Light north wind.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 44.
Memorial Day
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Stevensville MT
 46.5°N 114.1°W (Elev. 3399 ft)
2:01 am MDT May 19, 2026
7am MDT May 19, 2026-6pm MDT May 25, 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