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

58°F

14°C

Humidity 55%
Wind Speed SW 5 mph
Barometer 30.49 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 23 Aug 10:55 pm MDT
Extended Forecast for

Arapahoe Peak CO

  • Tonight

    Tonight: Partly cloudy, with a low around 43. West northwest wind around 14 mph, with gusts as high as 21 mph.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 56. West northwest wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 56 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 41. West wind 7 to 11 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.

    Low: 41 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after noon. Sunny through mid morning, then becoming mostly cloudy, with a high near 55. West wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 55 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 40. Northwest wind 8 to 10 mph becoming southeast in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 30%.

    Low: 40 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Thursday

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

    High: 56 °F

    Breezy.
    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 42. Breezy.

    Low: 42 °F

    Slight Chance
    T-storms then
    Partly Cloudy
    and Breezy

Detailed Forecast

Tonight
Partly cloudy, with a low around 43. West northwest wind around 14 mph, with gusts as high as 21 mph.
Monday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 56. West northwest wind 7 to 14 mph, with gusts as high as 24 mph.
Monday Night
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 41. West wind 7 to 11 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.
Tuesday
A 50 percent chance of showers and thunderstorms after noon. Sunny through mid morning, then becoming mostly cloudy, with a high near 55. West wind 9 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 40. Northwest wind 8 to 10 mph becoming southeast in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 30%.
Wednesday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 55.
Wednesday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 41.
Thursday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 56. Breezy.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42. Breezy.
Friday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 57. Breezy.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 42. Breezy.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 57. Windy.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 43. Breezy.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 56. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Arapahoe Peak CO
 40.02°N 105.65°W (Elev. 12680 ft)
Last Update:
12:47 pm MDT Aug 23, 2026
Forecast Valid:
11pm MDT Aug 23, 2026-6pm MDT Aug 30, 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