National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Partly Cloudy

68°F

20°C

Humidity 39%
Wind Speed E 8 mph
Barometer 30.55 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 21 Aug 9:55 pm MDT
Extended Forecast for

Arapahoe Peak CO

  • Tonight

    Tonight: Partly cloudy, with a low around 46. Southeast wind 7 to 9 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 59. West wind 6 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 70%.

    High: 59 °F

    Mostly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 44. Breezy, with a south southwest wind 8 to 16 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 50%.

    Low: 44 °F

    Chance
    T-storms then
    Mostly Cloudy
    and Breezy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 56. Breezy, with a west wind 18 to 23 mph, with gusts as high as 33 mph.

    High: 56 °F

    Breezy.
    Mostly 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. Partly cloudy, with a low around 44. Breezy, with a west wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 44 °F

    Breezy.
    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 56. Breezy. Chance of precipitation is 70%.

    High: 56 °F

    Mostly Sunny
    and Breezy
    then T-storms
    Likely

  • Monday Night

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

    Low: 42 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

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

    High: 55 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

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

    Low: 41 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 46. Southeast wind 7 to 9 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 59. West wind 6 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 44. Breezy, with a south southwest wind 8 to 16 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 50%.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 56. Breezy, with a west wind 18 to 23 mph, with gusts as high as 33 mph.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 44. Breezy, with a west wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 56. Breezy. Chance of precipitation is 70%.
Monday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 42.
Tuesday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 55.
Tuesday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 41.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 56.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 41. Breezy.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 56. Breezy.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 42. Breezy.
Friday
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:
1:46 pm MDT Aug 21, 2026
Forecast Valid:
10pm MDT Aug 21, 2026-6pm MDT Aug 28, 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