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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Current conditions at

CRYSTAL LAKE (CRYM8)

Lat: 46.78942°NLon: 109.51205°WElev: 6050.0ft.

NA

72°F

22°C

Humidity NA
Wind Speed NA NA MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

Garneill MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. South wind 6 to 13 mph becoming west southwest after midnight. Winds could gust as high as 21 mph.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 72. West wind 6 to 13 mph becoming north northeast in the afternoon. Winds could gust as high as 21 mph.

    High: 72 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely before midnight, then rain likely between midnight and 3am, then showers and possibly a thunderstorm after 3am. Low around 50. North northwest wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 50 °F

    Showers

  • Saturday

    Saturday: Rain before noon, then showers and possibly a thunderstorm after noon. High near 57. North wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.

    High: 57 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 9pm, then rain, mainly after 9pm. Low around 47. North northwest wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    Low: 47 °F

    Showers

  • Sunday

    Sunday: A chance of rain before noon, then a slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 68. North northwest wind 7 to 9 mph becoming northeast in the afternoon. Chance of precipitation is 40%.

    High: 68 °F

    Chance Rain
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46. East wind 7 to 10 mph becoming south after midnight.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 72. South wind around 10 mph, with gusts as high as 21 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 50. South wind 6 to 13 mph becoming west southwest after midnight. Winds could gust as high as 21 mph.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 72. West wind 6 to 13 mph becoming north northeast in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Showers and thunderstorms likely before midnight, then rain likely between midnight and 3am, then showers and possibly a thunderstorm after 3am. Low around 50. North northwest wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Rain before noon, then showers and possibly a thunderstorm after noon. High near 57. North wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm before 9pm, then rain, mainly after 9pm. Low around 47. North northwest wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Sunday
A chance of rain before noon, then a slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 68. North northwest wind 7 to 9 mph becoming northeast in the afternoon. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 46. East wind 7 to 10 mph becoming south after midnight.
Monday
Sunny, with a high near 72. South wind around 10 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 48.
Tuesday
A slight chance of rain after noon. Mostly sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Garneill MT
 46.74°N 109.78°W (Elev. 4505 ft)
Last Update:
12:31 pm MDT Sep 17, 2026
Forecast Valid:
3pm MDT Sep 17, 2026-6pm MDT Sep 24, 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