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.

Mostly Cloudy

60°F

16°C

Humidity 43%
Wind Speed NW 7 mph
Barometer 30.33 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 30 Sep 11:55 am MDT
Extended Forecast for

Grand Lake CO

  • This Afternoon

    This Afternoon: A 20 percent chance of showers before 3pm. Mostly sunny, with a high near 64. Southwest wind around 10 mph, with gusts as high as 16 mph.

    High: 64 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 33. West southwest wind 5 to 8 mph.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62. Light west southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 62 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 32. West southwest wind around 6 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 68. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 17 mph.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 68.

    High: 68 °F

    Sunny then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly after midnight. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 58.

    High: 58 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A 20 percent chance of showers before 3pm. Mostly sunny, with a high near 64. Southwest wind around 10 mph, with gusts as high as 16 mph.
Tonight
Partly cloudy, with a low around 33. West southwest wind 5 to 8 mph.
Wednesday
Mostly sunny, with a high near 62. Light west southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 32. West southwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 68. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 17 mph.
Thursday Night
Mostly clear, with a low around 36.
Friday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 68.
Friday Night
A chance of showers, mainly after midnight. Mostly cloudy, with a low around 35.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 58.
Saturday Night
A chance of showers, mainly before midnight. Mostly cloudy, with a low around 30.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 55.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 28.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.25°N 105.85°W (Elev. 8599 ft)
Last Update:
5:45 am MDT Sep 30, 2025
Forecast Valid:
12pm MDT Sep 30, 2025-6pm MDT Oct 6, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation