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

53°F

12°C

Humidity 83%
Wind Speed NE 3 mph
Barometer 30.40 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 14 Aug 7:55 am MDT
Extended Forecast for

3 Miles W Arapahoe Peak CO

  • Today

    Today: Showers and thunderstorms likely, mainly between 3pm and 5pm. Partly sunny, with a high near 59. West wind 7 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.

    High: 59 °F

    Partly Sunny
    then T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then a slight chance of showers after 5am. Mostly cloudy, with a low around 44. West wind 5 to 8 mph. Chance of precipitation is 60%.

    Low: 44 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers before noon, then showers and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. High near 57. West wind 5 to 8 mph becoming south in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 80%.

    High: 57 °F

    Chance
    Showers then
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 43. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 40%.

    Low: 43 °F

    Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 59. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 59 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 44. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62. Breezy.

    High: 62 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
Showers and thunderstorms likely, mainly between 3pm and 5pm. Partly sunny, with a high near 59. West wind 7 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.
Tonight
Showers and thunderstorms likely before midnight, then a slight chance of showers after 5am. Mostly cloudy, with a low around 44. West wind 5 to 8 mph. Chance of precipitation is 60%.
Saturday
A chance of showers before noon, then showers and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. High near 57. West wind 5 to 8 mph becoming south in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 80%.
Saturday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 43. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 40%.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 59. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 17 mph.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 44. Chance of precipitation is 30%.
Monday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 62. Breezy.
Tuesday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 61.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 45.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Arapahoe Peak CO
 40.02°N 105.71°W (Elev. 11135 ft)
Last Update:
12:46 am MDT Aug 14, 2026
Forecast Valid:
8am MDT Aug 14, 2026-6pm MDT Aug 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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