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

50°F

10°C

Humidity 62%
Wind Speed Calm
Barometer 30.53 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 3 Sep 8:55 am MDT
Extended Forecast for

2 Miles SSE Arapahoe Peak CO

  • Today

    Today: A 20 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 52. North northwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 52 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 41. Breezy, with a west wind 7 to 12 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 25 mph.

    Low: 41 °F

    Partly Cloudy
    then Mostly
    Clear and
    Breezy

  • Thursday

    Thursday: Increasing clouds, with a high near 56. Breezy, with a west northwest wind 17 to 22 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 56 °F

    Increasing
    Clouds and
    Breezy

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 36. West northwest wind 8 to 14 mph becoming east after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    Low: 36 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of rain and snow showers before 9am, then rain showers likely. Some thunder is also possible. Partly sunny, with a high near 46. South southwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    High: 46 °F

    Slight Chance
    Rain/Snow
    then Showers
    Likely

  • Friday Night

    Friday 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 36. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 39. Breezy.

    Low: 39 °F

    Chance
    Showers and
    Breezy

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 48. Breezy.

    High: 48 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 52. North northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 41. Breezy, with a west wind 7 to 12 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 25 mph.
Thursday
Increasing clouds, with a high near 56. Breezy, with a west northwest wind 17 to 22 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 36. West northwest wind 8 to 14 mph becoming east after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Friday
A slight chance of rain and snow showers before 9am, then rain showers likely. Some thunder is also possible. Partly sunny, with a high near 46. South southwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Friday 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 36. Chance of precipitation is 20%.
Saturday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 49.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 39. Breezy.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 48. Breezy.
Sunday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 38. Breezy.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 49. Breezy.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 37. Breezy.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 51. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Arapahoe Peak CO
 40°N 105.62°W (Elev. 11716 ft)
Last Update:
4:01 am MDT Sep 3, 2025
Forecast Valid:
9am MDT Sep 3, 2025-6pm MDT Sep 9, 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