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

Severe Thunderstorms in the Southern Plains; Heavy to Excessive Rainfall in South Central Texas

Widespread rain may produce flash flooding across the Southern Plains into the Ozarks today. Numerous instances of flash flooding are expected in south-central Texas, including the Hill Country. There will also be a risk of isolated severe thunderstorms across the southern Plains today, where an instance or two of severe wind, hail, or a brief tornado may occur. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

Lat: 46.71854°NLon: 113.29534°WElev: 3901.0ft.

NA

42°F

6°C

Humidity 75%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 20 Nov 04:00 PM MST
Extended Forecast for

Potomac MT

  • Tonight

    Tonight: Patchy fog after 7pm. Otherwise, partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 46. Calm wind becoming west around 5 mph.

    High: 46 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Patchy fog before 9pm, then patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 48. Calm wind.

    High: 48 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 50.

    High: 50 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Rain

  • Monday

    Monday: A chance of rain and snow before 8am, then snow likely. Mostly cloudy, with a high near 39.

    High: 39 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Monday Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow

Detailed Forecast

Tonight
Patchy fog after 7pm. Otherwise, partly cloudy, with a low around 27. Calm wind.
Friday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 46. Calm wind becoming west around 5 mph.
Friday Night
Patchy fog before 9pm, then patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 24. Calm wind.
Saturday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 48. Calm wind.
Saturday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 24. Calm wind.
Sunday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 50.
Sunday Night
A 50 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 27.
Monday
A chance of rain and snow before 8am, then snow likely. Mostly cloudy, with a high near 39.
Monday Night
A chance of snow. Mostly cloudy, with a low around 20.
Tuesday
A chance of snow. Partly sunny, with a high near 36.
Tuesday Night
A slight chance of snow. Patchy fog. Otherwise, mostly cloudy, with a low around 17.
Wednesday
A chance of snow. Patchy fog. Otherwise, mostly cloudy, with a high near 36.
Wednesday Night
Snow likely. Patchy fog. Otherwise, mostly cloudy, with a low around 21.
Thanksgiving Day
A chance of rain and snow. Patchy fog. Snow level rising to 3900 feet in the afternoon. Otherwise, mostly cloudy, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Potomac MT
 46.89°N 113.59°W (Elev. 3589 ft)
Last Update:
1:02 pm MST Nov 20, 2025
Forecast Valid:
4pm MST Nov 20, 2025-6pm MST Nov 27, 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