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

Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Thunderstorm

74°F

23°C

Humidity 25%
Wind Speed W 7 mph
Barometer 30.36 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 18 Jul 5:55 pm MDT
Extended Forecast for

9 Miles W Grand Lake CO

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 46. West southwest wind 6 to 8 mph becoming east southeast in the evening. Chance of precipitation is 40%.

    Low: 46 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 65. West wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 65 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44. West northwest wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 21 mph.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67. West wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 67 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46. Southwest wind 6 to 8 mph, with gusts as high as 17 mph.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 46. West southwest wind 6 to 8 mph becoming east southeast in the evening. Chance of precipitation is 40%.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 65. West wind 7 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 44. West northwest wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 21 mph.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67. West wind 6 to 9 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 46. Southwest wind 6 to 8 mph, with gusts as high as 17 mph.
Monday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67.
Tuesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 47.
Wednesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 66.
Wednesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 67.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 46.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles W Grand Lake CO
 40.26°N 106°W (Elev. 10896 ft)
Last Update:
2:02 pm MDT Jul 18, 2025
Forecast Valid:
6pm MDT Jul 18, 2025-6pm MDT Jul 25, 2025
 
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