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

56°F

13°C

Humidity 26%
Wind Speed Calm
Barometer 30.50 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 8 Aug 1:15 am MDT
Extended Forecast for

5 Miles WNW Arapahoe Peak CO

  • Overnight

    Overnight: Areas of smoke. Mostly clear, with a low around 52. South wind 3 to 7 mph.

    Low: 52 °F

    Areas Smoke

  • Saturday

    Saturday: Mostly sunny, with a high near 76. Breezy, with a light and variable wind becoming west northwest 10 to 15 mph in the morning. Winds could gust as high as 24 mph.

    High: 76 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. Northwest wind 8 to 13 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 74. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 74 °F

    Mostly Sunny
    then Slight
    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. Mostly cloudy, with a low around 53. West wind 5 to 9 mph becoming light west southwest after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 20%.

    Low: 53 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny
    then Chance
    T-storms

  • 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 51. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Areas of smoke. Mostly clear, with a low around 52. South wind 3 to 7 mph.
Saturday
Mostly sunny, with a high near 76. Breezy, with a light and variable wind becoming west northwest 10 to 15 mph in the morning. Winds could gust as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 54. Northwest wind 8 to 13 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 74. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 53. West wind 5 to 9 mph becoming light west southwest after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 20%.
Monday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 72.
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 51. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 71.
Tuesday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50.
Wednesday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 69.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 47.
Thursday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 62.
Thursday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 45.
Friday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Arapahoe Peak CO
 40.04°N 105.74°W (Elev. 10272 ft)
Last Update:
12:46 am MDT Aug 8, 2026
Forecast Valid:
1am MDT Aug 8, 2026-6pm MDT Aug 14, 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