Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Georgetown Lake (MTGTL)

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

NA

72°F

22°C

Humidity 27%
Wind Speed SW 12 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 19 Aug 03:16 PM MDT
Extended Forecast for

22 Miles ESE Corvallis MT

  • Tonight

    Tonight: Patchy smoke between 8pm and 1am. Mostly clear, with a low around 48. Calm wind becoming southwest around 6 mph after midnight. Winds could gust as high as 18 mph.

    Low: 48 °F

    Patchy Smoke

  • Thursday

    Thursday: Sunny, with a high near 78. Southwest wind 3 to 6 mph. Winds could gust as high as 20 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 55. Calm wind becoming east southeast around 5 mph.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 73. Chance of precipitation is 60%.

    High: 73 °F

    Slight Chance
    Rain then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy smoke between 8pm and 1am. Mostly clear, with a low around 48. Calm wind becoming southwest around 6 mph after midnight. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 78. Southwest wind 3 to 6 mph. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 53. Calm wind.
Friday
Mostly sunny, with a high near 80. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 55. Calm wind becoming east southeast around 5 mph.
Saturday
A slight chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 72.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 48.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
22 Miles ESE Corvallis MT
 46.15°N 113.72°W (Elev. 7516 ft)
2:01 pm MDT Aug 19, 2026
3pm MDT Aug 19, 2026-6pm MDT Aug 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