National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

STEVI (STVM8)

Lat: 46.55617°NLon: 114.07435°WElev: 3205.0ft.

NA

54°F

12°C

Humidity 88%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 17 Aug 03:14 AM MDT
Extended Forecast for

Stevensville MT

  • Overnight

    Overnight: A 30 percent chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Chance Rain
    and Patchy
    Fog

  • Sunday

    Sunday: A slight chance of rain, then a chance of showers and thunderstorms after noon. Patchy fog before 9am. Otherwise, partly sunny, with a high near 83. Calm wind becoming south around 5 mph. Chance of precipitation is 50%.

    High: 83 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain between 9pm and midnight. Partly cloudy, with a low around 50. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 50 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A slight chance of rain between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 89. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. West wind around 6 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 52. Calm wind.
Sunday
A slight chance of rain, then a chance of showers and thunderstorms after noon. Patchy fog before 9am. Otherwise, partly sunny, with a high near 83. Calm wind becoming south around 5 mph. Chance of precipitation is 50%.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain between 9pm and midnight. Partly cloudy, with a low around 50. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Monday
A slight chance of rain between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 89. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 53. West wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 95.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Stevensville MT
 46.5°N 114.1°W (Elev. 3398 ft)
Last Update:
3:30 am MDT Aug 17, 2025
Forecast Valid:
4am MDT Aug 17, 2025-6pm MDT Aug 23, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation