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.

Drizzle

56°F

13°C

Humidity 77%
Wind Speed SE 16 mph
Barometer 30.40 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 31 Aug 4:35 pm MDT
Extended Forecast for

2 Miles SSW Devils Thumb Park CO

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm. Cloudy, with a steady temperature around 62. South southwest wind around 6 mph. Chance of precipitation is 70%.

    High: 62 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 9pm, then a chance of showers. Cloudy, with a low around 47. South wind around 5 mph becoming calm. Chance of precipitation is 70%.

    Low: 47 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between noon and 3pm. Cloudy through mid morning, then gradual clearing, with a high near 70. West wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 70 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. West northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 16 mph.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. Light west southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 24 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75.

    High: 75 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Cloudy, with a steady temperature around 62. South southwest wind around 6 mph. Chance of precipitation is 70%.
Tonight
Showers likely and possibly a thunderstorm before 9pm, then a chance of showers. Cloudy, with a low around 47. South wind around 5 mph becoming calm. Chance of precipitation is 70%.
Tuesday
A slight chance of showers and thunderstorms between noon and 3pm. Cloudy through mid morning, then gradual clearing, with a high near 70. West wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 46. West northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 16 mph.
Wednesday
Sunny, with a high near 72. Light west southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 47.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75.
Friday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 74.
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 74.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
Labor Day
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Devils Thumb Park CO
 39.95°N 105.76°W (Elev. 8848 ft)
Last Update:
12:46 pm MDT Aug 31, 2026
Forecast Valid:
4pm MDT Aug 31, 2026-6pm MDT Sep 7, 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