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

68°F

20°C

Humidity 34%
Wind Speed NW 3 mph
Barometer 30.37 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 4 Sep 10:55 am MDT
Extended Forecast for

2 Miles N Arapahoe Peak CO

  • Today

    Today: A chance of showers, with thunderstorms also possible after 3pm. Increasing clouds, with a high near 64. South southwest wind 7 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 50%.

    High: 64 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 42. West wind around 7 mph.

    Low: 42 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Partly sunny, with a high near 61. West wind around 7 mph becoming south in the afternoon.

    High: 61 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43. West wind 5 to 8 mph.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 63. West wind 5 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 16 mph.

    High: 63 °F

    Partly 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. Mostly cloudy, with a low around 44. Chance of precipitation is 20%.

    Low: 44 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Labor Day

    Labor Day: A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 60. Breezy.

    High: 60 °F

    Breezy.
    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

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

    Low: 41 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 60. Breezy.

    High: 60 °F

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 3pm. Increasing clouds, with a high near 64. South southwest wind 7 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 50%.
Tonight
A 40 percent chance of showers, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 42. West wind around 7 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Partly sunny, with a high near 61. West wind around 7 mph becoming south in the afternoon.
Saturday Night
Mostly cloudy, with a low around 43. West wind 5 to 8 mph.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 63. West wind 5 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 16 mph.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 44. Chance of precipitation is 20%.
Labor Day
A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 60. Breezy.
Monday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 41.
Tuesday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 60. Breezy.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 62.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 42.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Arapahoe Peak CO
 40.04°N 105.65°W (Elev. 11270 ft)
Last Update:
12:46 am MDT Sep 4, 2026
Forecast Valid:
11am MDT Sep 4, 2026-6pm MDT Sep 10, 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