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

78°F

26°C

Humidity 28%
Wind Speed N 18 G 26 mph
Barometer 30.38 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 11 Aug 4:55 pm MDT
Extended Forecast for

Arapahoe Peak CO

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Patchy smoke. Mostly cloudy, with a steady temperature around 55. North northeast wind around 6 mph.

    High: 55 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Patchy smoke between 3am and 5am. Mostly cloudy, with a low around 45. East northeast wind 5 to 8 mph becoming west southwest after midnight.

    Low: 45 °F

    Slight Chance
    T-storms then
    Patchy Smoke

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly after noon. Patchy smoke between 2pm and 4pm. High near 57. West wind 7 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.

    High: 57 °F

    Patchy Smoke
    then T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Patchy smoke before 7pm. Mostly cloudy, with a low around 41. West southwest wind 7 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.

    Low: 41 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, then showers and possibly a thunderstorm after noon. High near 50. West southwest wind 6 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 100%.

    High: 50 °F

    Chance
    Showers then
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 39. Breezy. Chance of precipitation is 80%.

    Low: 39 °F

    Showers then
    Chance
    Showers and
    Breezy

  • Friday

    Friday: A slight chance of showers, then showers and thunderstorms after noon. High near 50. Breezy. Chance of precipitation is 90%.

    High: 50 °F

    Slight Chance
    Showers and
    Breezy then
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Showers

  • Saturday

    Saturday: A slight chance of showers, then showers and thunderstorms likely after noon. Partly sunny, with a high near 50.

    High: 50 °F

    Slight Chance
    Showers then
    T-storms
    Likely

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Patchy smoke. Mostly cloudy, with a steady temperature around 55. North northeast wind around 6 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Patchy smoke between 3am and 5am. Mostly cloudy, with a low around 45. East northeast wind 5 to 8 mph becoming west southwest after midnight.
Wednesday
Showers and possibly a thunderstorm, mainly after noon. Patchy smoke between 2pm and 4pm. High near 57. West wind 7 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Patchy smoke before 7pm. Mostly cloudy, with a low around 41. West southwest wind 7 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.
Thursday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 50. West southwest wind 6 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 100%.
Thursday Night
Showers and possibly a thunderstorm. Low around 39. Breezy. Chance of precipitation is 80%.
Friday
A slight chance of showers, then showers and thunderstorms after noon. High near 50. Breezy. Chance of precipitation is 90%.
Friday Night
Showers and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 38.
Saturday
A slight chance of showers, then showers and thunderstorms likely after noon. Partly sunny, with a high near 50.
Saturday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 38.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 52.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 39.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 54.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 40.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 55. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arapahoe Peak CO
 40.02°N 105.65°W (Elev. 12680 ft)
Last Update:
12:46 pm MDT Aug 11, 2026
Forecast Valid:
5pm MDT Aug 11, 2026-6pm MDT Aug 18, 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