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

18°F

-8°C

Humidity 71%
Wind Speed Calm
Barometer 30.28 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 18 Apr 6:55 am MDT
Extended Forecast for

Arapahoe Peak CO

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 19. Wind chill values as low as -22. Windy, with a west northwest wind 21 to 26 mph, with gusts as high as 37 mph.

    High: 19 °F

    Becoming
    Sunny and
    Windy

  • Tonight

    Tonight: Partly cloudy, with a low around 11. Wind chill values as low as -5. Breezy, with a west wind 15 to 21 mph, with gusts as high as 30 mph.

    Low: 11 °F

    Partly Cloudy
    and Breezy

  • Sunday

    Sunday: Sunny, with a high near 32. Wind chill values as low as -7. Breezy, with a west wind 21 to 23 mph, with gusts as high as 31 mph.

    High: 32 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20. Breezy, with a west wind 17 to 23 mph, with gusts as high as 28 mph.

    Low: 20 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Partly sunny, with a high near 38. Breezy, with a west northwest wind around 23 mph, with gusts as high as 31 mph.

    High: 38 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23. Blustery.

    Low: 23 °F

    Partly Cloudy
    and Blustery

  • Tuesday

    Tuesday: A 30 percent chance of snow showers after noon. Mostly sunny, with a high near 42. Breezy.

    High: 42 °F

    Breezy. Sunny
    then Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: A chance of snow showers before midnight. Partly cloudy, with a low around 27. Breezy.

    Low: 27 °F

    Breezy.
    Chance Snow
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A chance of snow showers after noon. Mostly sunny, with a high near 41. Very windy.

    High: 41 °F

    Chance Snow
    Showers and
    Very Windy

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 19. Wind chill values as low as -22. Windy, with a west northwest wind 21 to 26 mph, with gusts as high as 37 mph.
Tonight
Partly cloudy, with a low around 11. Wind chill values as low as -5. Breezy, with a west wind 15 to 21 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 32. Wind chill values as low as -7. Breezy, with a west wind 21 to 23 mph, with gusts as high as 31 mph.
Sunday Night
Mostly clear, with a low around 20. Breezy, with a west wind 17 to 23 mph, with gusts as high as 28 mph.
Monday
Partly sunny, with a high near 38. Breezy, with a west northwest wind around 23 mph, with gusts as high as 31 mph.
Monday Night
Partly cloudy, with a low around 23. Blustery.
Tuesday
A 30 percent chance of snow showers after noon. Mostly sunny, with a high near 42. Breezy.
Tuesday Night
A chance of snow showers before midnight. Partly cloudy, with a low around 27. Breezy.
Wednesday
A chance of snow showers after noon. Mostly sunny, with a high near 41. Very windy.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 20. Very windy.
Thursday
Snow showers likely. Some thunder is also possible. Partly sunny, with a high near 26. Very windy.
Thursday Night
Snow showers likely. Mostly cloudy, with a low around 13. Windy.
Friday
Snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 22. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arapahoe Peak CO
 40.02°N 105.65°W (Elev. 12680 ft)
Last Update:
12:46 am MDT Apr 18, 2026
Forecast Valid:
7am MDT Apr 18, 2026-6pm MDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation