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

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

57°F

14°C

Humidity 58%
Wind Speed Calm
Barometer 30.61 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 21 Aug 8:35 am MDT
Extended Forecast for

4 Miles NW LONG'S PEAK CO

  • Today

    Today: A 40 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 64. West wind 6 to 8 mph becoming northeast in the afternoon.

    High: 64 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers before 9pm. Partly cloudy, with a low around 47. Northeast wind around 6 mph becoming southwest after midnight.

    Low: 47 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 62. Southwest wind 6 to 9 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 70%.

    High: 62 °F

    Mostly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Cloudy, then gradually becoming partly cloudy, with a low around 47. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 62. Breezy, with a west wind 13 to 16 mph, with gusts as high as 28 mph.

    High: 62 °F

    Breezy.
    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 45. Chance of precipitation is 20%.

    Low: 45 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 59. Chance of precipitation is 70%.

    High: 59 °F

    Mostly Sunny
    then Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny
    then T-storms
    Likely

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 64. West wind 6 to 8 mph becoming northeast in the afternoon.
Tonight
A 20 percent chance of showers before 9pm. Partly cloudy, with a low around 47. Northeast wind around 6 mph becoming southwest after midnight.
Saturday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 62. Southwest wind 6 to 9 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm. Cloudy, then gradually becoming partly cloudy, with a low around 47. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 62. Breezy, with a west wind 13 to 16 mph, with gusts as high as 28 mph.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 45. Chance of precipitation is 20%.
Monday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 59. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.
Tuesday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 58.
Tuesday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 41.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 58.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 41.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW LONG'S PEAK CO
 40.28°N 105.68°W (Elev. 11834 ft)
Last Update:
12:46 am MDT Aug 21, 2026
Forecast Valid:
9am MDT Aug 21, 2026-6pm MDT Aug 27, 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