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

74°F

23°C

Humidity 32%
Wind Speed SW 7 G 17 mph
Barometer 30.33 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 13 Sep 12:15 pm MDT
Extended Forecast for

2 Miles NNE Arapahoe Peak CO

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 61. West southwest wind 11 to 13 mph, with gusts as high as 21 mph.

    High: 61 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 43. Windy, with a southwest wind 11 to 16 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 50%.

    Low: 43 °F

    Chance
    Showers and
    Windy

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after noon. Cloudy, then gradually becoming mostly sunny, with a high near 53. Windy, with a west wind 24 to 30 mph, with gusts as high as 48 mph. Chance of precipitation is 50%.

    High: 53 °F

    Chance
    Showers and
    Windy

  • Monday Night

    Monday Night: A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 37. Breezy, with a west wind 17 to 22 mph becoming north northeast 5 to 10 mph after midnight. Winds could gust as high as 34 mph.

    Low: 37 °F

    Slight Chance
    Showers and
    Breezy then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 48. Southeast wind 7 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 70%.

    High: 48 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 37. Chance of precipitation is 50%.

    Low: 37 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 54. Chance of precipitation is 60%.

    High: 54 °F

    Mostly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 51.

    High: 51 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 61. West southwest wind 11 to 13 mph, with gusts as high as 21 mph.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 43. Windy, with a southwest wind 11 to 16 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 50%.
Monday
A chance of showers, with thunderstorms also possible after noon. Cloudy, then gradually becoming mostly sunny, with a high near 53. Windy, with a west wind 24 to 30 mph, with gusts as high as 48 mph. Chance of precipitation is 50%.
Monday Night
A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 37. Breezy, with a west wind 17 to 22 mph becoming north northeast 5 to 10 mph after midnight. Winds could gust as high as 34 mph.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 48. Southeast wind 7 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 37. Chance of precipitation is 50%.
Wednesday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 54. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 38.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 51.
Thursday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 35.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 52.
Friday Night
Mostly clear, with a low around 33.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Arapahoe Peak CO
 40.07°N 105.63°W (Elev. 11532 ft)
Last Update:
12:46 am MDT Sep 13, 2026
Forecast Valid:
12pm MDT Sep 13, 2026-6pm MDT Sep 19, 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