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

48°F

9°C

Humidity 67%
Wind Speed E 5 mph
Barometer 30.49 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 28 Aug 4:35 am MDT
Extended Forecast for

6 Miles WNW Arapahoe Peak CO

  • Today

    Today: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70. Breezy, with a west wind 6 to 15 mph, with gusts as high as 24 mph.

    High: 70 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 51. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 51 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 69. Breezy, with a west wind 7 to 17 mph, with gusts as high as 28 mph.

    High: 69 °F

    Breezy.
    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 49. West southwest wind 5 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 49 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 65. Breezy, with a west wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 65 °F

    Partly Sunny
    then Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 46. Chance of precipitation is 20%.

    Low: 46 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 64. Chance of precipitation is 60%.

    High: 64 °F

    Partly Sunny
    then Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70. Breezy, with a west wind 6 to 15 mph, with gusts as high as 24 mph.
Tonight
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 51. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 69. Breezy, with a west wind 7 to 17 mph, with gusts as high as 28 mph.
Saturday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 49. West southwest wind 5 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 65. Breezy, with a west wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 31 mph.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 46. Chance of precipitation is 20%.
Monday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 64. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 44.
Tuesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WNW Arapahoe Peak CO
 40.06°N 105.74°W (Elev. 10095 ft)
Last Update:
12:46 am MDT Aug 28, 2026
Forecast Valid:
4am MDT Aug 28, 2026-6pm MDT Sep 3, 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