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

55°F

13°C

Humidity 56%
Wind Speed Calm
Barometer 30.59 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 25 Aug 8:35 am MDT
Extended Forecast for

5 Miles NNW Devils Thumb Park CO

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 70. Light west wind becoming west northwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 70 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: 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 70. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 70 °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 46. North wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70. Calm wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 70 °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 71.

    High: 71 °F

    Mostly Sunny

  • Friday Night

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

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 70. Breezy.

    High: 70 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 70. Light west wind becoming west northwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Tonight
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 70. 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 46. 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 70. Calm wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
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 71.
Friday Night
Mostly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 70. Breezy.
Saturday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 49.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 67.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Devils Thumb Park CO
 40.04°N 105.77°W (Elev. 9757 ft)
Last Update:
12:46 am MDT Aug 25, 2026
Forecast Valid:
9am MDT Aug 25, 2026-6pm MDT Aug 31, 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