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

Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Current conditions at

Georgetown Lake (MTGTL)

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

NA

64°F

18°C

Humidity 51%
Wind Speed NW 5 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 16 Sep 05:30 PM MDT
Extended Forecast for

Anaconda MT

  • Tonight

    Tonight: Mostly clear, with a low around 43. Northeast wind 5 to 10 mph becoming light and variable in the evening.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of rain between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 75. Light and variable wind becoming south 10 to 15 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    High: 75 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Rain and thunderstorms likely before 11pm, then a slight chance of rain after 5am. Mostly cloudy, with a low around 45. South southwest wind 8 to 13 mph becoming light west southwest after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Showers
    Likely then
    Slight Chance
    Rain

  • Friday

    Friday: A slight chance of rain, then showers and possibly a thunderstorm after noon. High near 67. Light and variable wind becoming east northeast 10 to 15 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Slight Chance
    Rain then
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 9pm, then rain between 9pm and 3am, then showers and possibly a thunderstorm after 3am. Low around 46. Northwest wind 3 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Showers

  • Saturday

    Saturday: Rain before noon, then showers and possibly a thunderstorm after noon. High near 63. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 63 °F

    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Sunday Night

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

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 43. Northeast wind 5 to 10 mph becoming light and variable in the evening.
Thursday
A slight chance of rain between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 75. Light and variable wind becoming south 10 to 15 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Thursday Night
Rain and thunderstorms likely before 11pm, then a slight chance of rain after 5am. Mostly cloudy, with a low around 45. South southwest wind 8 to 13 mph becoming light west southwest after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of rain, then showers and possibly a thunderstorm after noon. High near 67. Light and variable wind becoming east northeast 10 to 15 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm before 9pm, then rain between 9pm and 3am, then showers and possibly a thunderstorm after 3am. Low around 46. Northwest wind 3 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Rain before noon, then showers and possibly a thunderstorm after noon. High near 63. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 43.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Anaconda MT
 46.12°N 112.95°W (Elev. 5394 ft)
Last Update:
2:01 pm MDT Sep 16, 2026
Forecast Valid:
5pm MDT Sep 16, 2026-6pm MDT Sep 23, 2026
 
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