Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Georgetown Lake (MTGTL)

Lat: 46.191°NLon: 113.3°WElev: 6338.0ft.

NA

69°F

21°C

Humidity 40%
Wind Speed W 4 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 17 Aug 07:45 PM MDT
Extended Forecast for

22 Miles SW Georgetown MT

  • Tonight

    Tonight: A 20 percent chance of showers before 9pm.  Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny, with a high near 68. Calm wind becoming west around 6 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 68 °F

    Sunny then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before midnight.  Partly cloudy, with a low around 48. Light and variable wind. Winds could gust as high as 20 mph.

    Low: 48 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. Light and variable wind.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 50. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 68. Calm wind becoming west around 6 mph in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
A 20 percent chance of rain before midnight. Partly cloudy, with a low around 48. Light and variable wind. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 51. Light and variable wind.
Thursday
Sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 55.
Friday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.
Friday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55.
Saturday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 72.
Saturday Night
A chance of rain and thunderstorms. Partly cloudy, with a low around 50.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
22 Miles SW Georgetown MT
 45.99°N 113.57°W (Elev. 7684 ft)
2:01 pm MDT Aug 17, 2026
8pm MDT Aug 17, 2026-6pm MDT Aug 24, 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