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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Arapahoe Peak CO

  • Tonight

    Tonight: Mostly clear, with a low around 40. North wind around 8 mph becoming west southwest in the evening.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56. West wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43. West northwest wind 5 to 13 mph becoming south southwest in the evening. Winds could gust as high as 20 mph.

    Low: 43 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. Breezy, with a west wind 13 to 17 mph, with gusts as high as 29 mph.

    High: 57 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 43. West southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 54. Breezy.

    High: 54 °F

    Breezy.
    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42.

    Low: 42 °F

    Chance
    Showers then
    Mostly Clear

  • Thursday

    Thursday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 40. North wind around 8 mph becoming west southwest in the evening.
Monday
Sunny, with a high near 56. West wind 8 to 11 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 43. West northwest wind 5 to 13 mph becoming south southwest in the evening. Winds could gust as high as 20 mph.
Tuesday
Partly sunny, with a high near 57. Breezy, with a west wind 13 to 17 mph, with gusts as high as 29 mph.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 43. West southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Wednesday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 54. Breezy.
Wednesday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42.
Thursday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 56.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 43.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 57.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 44.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 58.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. Breezy.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 55. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Arapahoe Peak CO
 40.02°N 105.65°W (Elev. 12680 ft)
Last Update:
1:27 pm MDT Aug 16, 2026
Forecast Valid:
9pm MDT Aug 16, 2026-6pm MDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation