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

56°F

13°C

Humidity 69%
Wind Speed Calm
Barometer 30.40 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 15 Sep 9:15 am MDT
Extended Forecast for

6 Miles SSW LONG'S PEAK CO

  • Today

    Today: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 50. West southwest wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.

    High: 50 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 38. Breezy, with a southwest wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    Low: 38 °F

    Chance
    Showers and
    Breezy

  • Wednesday

    Wednesday: A slight chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 53. Breezy, with a west southwest wind 12 to 17 mph becoming south southeast 6 to 11 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 60%.

    High: 53 °F

    Slight Chance
    Showers and
    Breezy then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 40. South southwest wind 5 to 8 mph becoming north northeast after midnight. Chance of precipitation is 60%.

    Low: 40 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, then showers and possibly a thunderstorm after noon. High near 51. North northwest wind 5 to 7 mph becoming east in the afternoon. Chance of precipitation is 80%.

    High: 51 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Mostly cloudy, with a low around 38. Breezy. Chance of precipitation is 60%.

    Low: 38 °F

    Showers
    Likely then
    Mostly Cloudy
    and Breezy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 51. Breezy.

    High: 51 °F

    Partly Sunny
    and Breezy
    then Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Rain and snow showers likely after noon, becoming all rain showers after 3pm. Some thunder is also possible. Partly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny
    then
    Rain/Snow
    Likely

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 50. West southwest wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 38. Breezy, with a southwest wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Wednesday
A slight chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 53. Breezy, with a west southwest wind 12 to 17 mph becoming south southeast 6 to 11 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 40. South southwest wind 5 to 8 mph becoming north northeast after midnight. Chance of precipitation is 60%.
Thursday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 51. North northwest wind 5 to 7 mph becoming east in the afternoon. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Mostly cloudy, with a low around 38. Breezy. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 51. Breezy.
Friday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 35.
Saturday
Rain and snow showers likely after noon, becoming all rain showers after 3pm. Some thunder is also possible. Partly sunny, with a high near 48.
Saturday Night
A chance of rain and snow showers before 9pm, then a chance of rain showers between 9pm and midnight. Some thunder is also possible. Partly cloudy, with a low around 32.
Sunday
A chance of rain and snow showers. Some thunder is also possible. Mostly sunny, with a high near 49.
Sunday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 32.
Monday
A chance of rain and snow showers. Some thunder is also possible. Mostly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW LONG'S PEAK CO
 40.18°N 105.64°W (Elev. 12224 ft)
Last Update:
3:39 am MDT Sep 15, 2026
Forecast Valid:
9am MDT Sep 15, 2026-6pm MDT Sep 21, 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