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

58°F

14°C

Humidity 37%
Wind Speed W 13 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 17 Jun 04:00 PM MDT
Extended Forecast for

16 Miles WSW Georgetown MT

  • Tonight

    Tonight: A 20 percent chance of rain before 8pm. Mostly clear, with a low around 41. West northwest wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 23 mph.

    Low: 41 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65. Calm wind becoming west northwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 18 mph.

    Low: 44 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 72. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52. West northwest wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain before noon, then a slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 66. Chance of precipitation is 20%.

    High: 66 °F

    Slight Chance
    Rain then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Sunday Night

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

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of rain before 8pm. Mostly clear, with a low around 41. West northwest wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 23 mph.
Thursday
Sunny, with a high near 65. Calm wind becoming west northwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 44. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Juneteenth
Mostly sunny, with a high near 72. Calm wind becoming west northwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 52. West northwest wind around 6 mph becoming calm in the evening.
Saturday
A slight chance of rain before noon, then a slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 66. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles WSW Georgetown MT
 46.12°N 113.56°W (Elev. 7001 ft)
Last Update:
2:01 pm MDT Jun 17, 2026
Forecast Valid:
4pm MDT Jun 17, 2026-6pm MDT Jun 24, 2026
 
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Additional Resources

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Chance of Precipitation