Lala Impacting Hawaii; Severe Thunderstorm and Flash Flooding Risks; Excessive Heat

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >

Current conditions at

Georgetown Lake (MTGTL)

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

NA

49°F

9°C

Humidity 85%
Wind Speed NE 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 17 Aug 01:15 AM MDT
Extended Forecast for

21 Miles SW Georgetown MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 47. Southeast wind around 5 mph.

    Low: 47 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 68. South wind around 6 mph becoming light and variable. Winds could gust as high as 21 mph.

    High: 68 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly between 3am and 4am.  Mostly cloudy, with a low around 49. West northwest wind around 5 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny, with a high near 67. Light and variable wind becoming west around 6 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 67 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 47. Southeast wind around 5 mph.
Monday
Partly sunny, with a high near 68. South wind around 6 mph becoming light and variable. Winds could gust as high as 21 mph.
Monday Night
A 30 percent chance of rain, mainly between 3am and 4am. Mostly cloudy, with a low around 49. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 67. Light and variable wind becoming west around 6 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 46. West northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 54.
Friday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.
Friday Night
A chance of rain. Mostly cloudy, with a low around 55.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 72.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
Sunday
A slight chance of rain. Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles SW Georgetown MT
 45.97°N 113.57°W (Elev. 8048 ft)
12:22 am MDT Aug 17, 2026
1am MDT Aug 17, 2026-6pm MDT Aug 23, 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