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

Granby-Grand County Airport (KGNB)

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

Overcast

67°F

19°C

Humidity 44%
Wind Speed Calm
Barometer 30.49 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 26 Aug 8:15 pm MDT
Extended Forecast for

10 Miles NNE Silverthorne CO

  • Tonight

    Tonight: Partly cloudy, with a low around 43. South southeast wind 6 to 8 mph.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 78. South southeast wind 5 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45. West northwest wind around 6 mph becoming light and variable. Winds could gust as high as 15 mph.

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 78. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 23 mph.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. West northwest wind 5 to 8 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 69.

    High: 69 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 43. South southeast wind 6 to 8 mph.
Thursday
Increasing clouds, with a high near 78. South southeast wind 5 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 45. West northwest wind around 6 mph becoming light and variable. Winds could gust as high as 15 mph.
Friday
Mostly sunny, with a high near 78. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 23 mph.
Friday Night
Partly cloudy, with a low around 45. West northwest wind 5 to 8 mph becoming south after midnight. Winds could gust as high as 20 mph.
Saturday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 77.
Saturday Night
Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Sunday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 69.
Sunday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 40.
Monday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 70.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 39.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 71.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 40.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNE Silverthorne CO
 39.8°N 106.03°W (Elev. 8996 ft)
Last Update:
2:25 pm MDT Aug 26, 2026
Forecast Valid:
8pm MDT Aug 26, 2026-6pm MDT Sep 2, 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