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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

Georgetown Lake (MTGTL)

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

NA

57°F

14°C

Humidity 33%
Wind Speed NW 10 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 17 Jun 01:45 PM MDT
Extended Forecast for

3 Miles WSW Anaconda MT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 67. West northwest wind around 18 mph, with gusts as high as 30 mph.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of rain between 9pm and 10pm. Mostly clear, with a low around 42. West wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.

    Low: 42 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72. Light and variable wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 23 mph.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. North northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 22 mph.

    Low: 42 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 79. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 74. Chance of precipitation is 30%.

    High: 74 °F

    Slight Chance
    Rain then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 67. West northwest wind around 18 mph, with gusts as high as 30 mph.
Tonight
A 20 percent chance of rain between 9pm and 10pm. Mostly clear, with a low around 42. West wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.
Thursday
Sunny, with a high near 72. Light and variable wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 42. North northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 22 mph.
Juneteenth
Mostly sunny, with a high near 79. Calm wind becoming north 5 to 7 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 49.
Saturday
A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 74. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Anaconda MT
 46.11°N 112.98°W (Elev. 6201 ft)
Last Update:
2:01 pm MDT Jun 17, 2026
Forecast Valid:
2pm MDT Jun 17, 2026-6pm MDT Jun 23, 2026
 
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Additional Resources

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Chance of Precipitation