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

49°F

9°C

Humidity 75%
Wind Speed Calm
Barometer 30.54 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 27 Aug 5:35 am MDT
Extended Forecast for

5 Miles WNW Arapahoe Peak CO

  • Today

    Today: A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 69. South southeast wind 5 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 69 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Northwest wind 5 to 7 mph becoming southeast in the evening.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 69. Breezy, with a light west southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 28 mph.

    High: 69 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. West southwest wind 5 to 13 mph, with gusts as high as 23 mph.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 68. Breezy, with a west wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 68 °F

    Partly Sunny
    then Chance
    T-storms and
    Breezy

  • 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 48. Chance of precipitation is 40%.

    Low: 48 °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 64. Breezy.

    High: 64 °F

    Partly Sunny
    then Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 69. South southeast wind 5 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.
Tonight
Partly cloudy, with a low around 49. Northwest wind 5 to 7 mph becoming southeast in the evening.
Friday
Partly sunny, with a high near 69. Breezy, with a light west southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 50. West southwest wind 5 to 13 mph, with gusts as high as 23 mph.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 68. Breezy, with a west wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 31 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 48. Chance of precipitation is 40%.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 64. Breezy.
Sunday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 45.
Monday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 62.
Monday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Arapahoe Peak CO
 40.04°N 105.74°W (Elev. 10272 ft)
Last Update:
12:46 am MDT Aug 27, 2026
Forecast Valid:
5am MDT Aug 27, 2026-6pm MDT Sep 2, 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