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

51°F

11°C

Humidity 60%
Wind Speed E 3 mph
Barometer 30.55 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 25 Aug 2:55 am MDT
Extended Forecast for

4 Miles N Devils Thumb Park CO

  • Overnight

    Overnight: Partly cloudy, with a low around 48. West wind 3 to 5 mph.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 71. Light northwest wind becoming west northwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 71 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 48. Northwest wind 5 to 7 mph becoming light and variable after midnight.

    Low: 48 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 71. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 71 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 47. North wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 47 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71.

    High: 71 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday 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 48. Chance of precipitation is 20%.

    Low: 48 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 48. West wind 3 to 5 mph.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 71. Light northwest wind becoming west northwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 48. Northwest wind 5 to 7 mph becoming light and variable after midnight.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 71. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 47. North wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.
Thursday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71.
Thursday 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 48. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 72.
Friday Night
Mostly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 72. Breezy.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 50.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 68.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Devils Thumb Park CO
 40.01°N 105.77°W (Elev. 9711 ft)
Last Update:
12:46 am MDT Aug 25, 2026
Forecast Valid:
3am MDT Aug 25, 2026-6pm MDT Aug 31, 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