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.

Partly Cloudy

72°F

22°C

Humidity 30%
Wind Speed W 10 G 16 mph
Barometer 30.33 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 2 Sep 1:15 pm MDT
Extended Forecast for

2 Miles WSW Arapahoe Peak CO

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 59. Breezy, with a west wind 14 to 16 mph, with gusts as high as 25 mph.

    High: 59 °F

    Slight Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 39. West wind 9 to 14 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 61. West wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40. West wind 5 to 8 mph becoming light and variable.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 61. West wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 61 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny
    then Showers
    Likely

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 59. Breezy, with a west wind 14 to 16 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 39. West wind 9 to 14 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 61. West wind 9 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 40. West wind 5 to 8 mph becoming light and variable.
Friday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 61. West wind 5 to 10 mph, with gusts as high as 18 mph.
Friday Night
Partly cloudy, with a low around 42.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60.
Saturday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 45.
Sunday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 59.
Sunday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 44.
Labor Day
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 59.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 42.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Arapahoe Peak CO
 40.02°N 105.68°W (Elev. 11293 ft)
Last Update:
12:46 pm MDT Sep 2, 2026
Forecast Valid:
1pm MDT Sep 2, 2026-6pm MDT Sep 8, 2026
 
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Additional Resources

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Chance of Precipitation