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.

Fair

86°F

30°C

Humidity 14%
Wind Speed SW 7 mph
Barometer 30.48 in
Dewpoint 32°F (0°C)
Visibility NA
Heat Index83°F (28°C)
Last update 21 Aug 3:55 pm MDT
Extended Forecast for

3 Miles WSW LONG'S PEAK CO

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 52. Northeast wind around 8 mph.

    High: 52 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 45. Northeast wind 7 to 9 mph becoming south southwest after midnight.

    Low: 45 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Mostly sunny, with a high near 56. South southwest wind 5 to 9 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%.

    High: 56 °F

    Mostly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Breezy, with a south wind 8 to 16 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 50%.

    Low: 43 °F

    Chance
    T-storms then
    Partly Cloudy
    and Breezy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 54. Breezy, with a west wind 17 to 20 mph, with gusts as high as 29 mph.

    High: 54 °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 43. Breezy. Chance of precipitation is 20%.

    Low: 43 °F

    Breezy.
    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 53. Breezy. Chance of precipitation is 70%.

    High: 53 °F

    Mostly Sunny
    and Breezy
    then Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 41. Breezy.

    Low: 41 °F

    Chance
    Showers then
    Partly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 52. Breezy.

    High: 52 °F

    Mostly Sunny
    and Breezy
    then Showers
    Likely

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 52. Northeast wind around 8 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 45. Northeast wind 7 to 9 mph becoming south southwest after midnight.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Mostly sunny, with a high near 56. South southwest wind 5 to 9 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Breezy, with a south wind 8 to 16 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 50%.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 54. Breezy, with a west wind 17 to 20 mph, with gusts as high as 29 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 43. Breezy. Chance of precipitation is 20%.
Monday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 53. Breezy. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 41. Breezy.
Tuesday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 52. Breezy.
Tuesday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 40.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 52.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 41. Breezy.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 53. Breezy.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 41. Breezy.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 53. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW LONG'S PEAK CO
 40.24°N 105.67°W (Elev. 12999 ft)
Last Update:
1:46 pm MDT Aug 21, 2026
Forecast Valid:
4pm MDT Aug 21, 2026-6pm MDT Aug 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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