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.

Fair

77°F

25°C

Humidity 28%
Wind Speed W 3 mph
Barometer 30.59 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 21 Aug 11:15 am MDT
Extended Forecast for

2 Miles S Arapahoe Peak CO

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 70. West northwest wind 8 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 17 mph.

    High: 70 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers before 9pm. Partly cloudy, with a low around 49. East northeast wind 6 to 9 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.

    Low: 49 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Increasing clouds, with a high near 67. West wind 7 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 70%.

    High: 67 °F

    Mostly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 49. West wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely then
    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67. Breezy, with a west northwest wind 15 to 18 mph, with gusts as high as 30 mph.

    High: 67 °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 47. Breezy. Chance of precipitation is 20%.

    Low: 47 °F

    Slight Chance
    T-storms and
    Breezy then
    Partly Cloudy

  • Monday

    Monday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 65. Breezy. Chance of precipitation is 60%.

    High: 65 °F

    Mostly Sunny
    and Breezy
    then T-storms
    Likely

  • Monday Night

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

    Low: 45 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny
    then T-storms
    Likely

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 70. West northwest wind 8 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 17 mph.
Tonight
A 20 percent chance of showers before 9pm. Partly cloudy, with a low around 49. East northeast wind 6 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. Increasing clouds, with a high near 67. West wind 7 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 49. West wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67. Breezy, with a west northwest wind 15 to 18 mph, with gusts as high as 30 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 47. Breezy. Chance of precipitation is 20%.
Monday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 65. Breezy. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 45.
Tuesday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 64.
Tuesday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 64.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 44.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 65. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Arapahoe Peak CO
 40°N 105.65°W (Elev. 10614 ft)
Last Update:
12:46 am MDT Aug 21, 2026
Forecast Valid:
11am MDT Aug 21, 2026-6pm MDT Aug 27, 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