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

82°F

28°C

Humidity 17%
Wind Speed Calm
Barometer 30.49 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 22 Aug 1:15 pm MDT
Extended Forecast for

3 Miles S LONG'S PEAK CO

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 74. Southeast wind 6 to 8 mph becoming south southwest. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 2am. Mostly cloudy, with a low around 50. West wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    Low: 50 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 73. Breezy, with a west wind 11 to 16 mph, with gusts as high as 26 mph.

    High: 73 °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 50. West wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 50 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 73. West wind 5 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    High: 73 °F

    Mostly Sunny
    then Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.

    Low: 47 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 71. Chance of precipitation is 70%.

    High: 71 °F

    Mostly Sunny
    then Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 71.

    High: 71 °F

    Sunny then
    Showers
    Likely

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 74. Southeast wind 6 to 8 mph becoming south southwest. Chance of precipitation is 60%.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 2am. Mostly cloudy, with a low around 50. West wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 73. Breezy, with a west wind 11 to 16 mph, with gusts as high as 26 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 50. West wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Monday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 73. West wind 5 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Tuesday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 71. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46.
Wednesday
Showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 71.
Wednesday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 72.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 48.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S LONG'S PEAK CO
 40.2°N 105.61°W (Elev. 10141 ft)
Last Update:
12:46 pm MDT Aug 22, 2026
Forecast Valid:
1pm MDT Aug 22, 2026-6pm MDT Aug 28, 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