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

7°C

45°F

Humidity 81%
Wind Speed SE 7 km/h
Barometer 30.09 in
Dewpoint 4°C (40°F)
Visibility 16 km
Wind Chill6°C (42°F)
Last update 10 Oct 8:55 pm MDT
Extended Forecast for

Grand Lake CO

  • Tonight

    Tonight: A 20 percent chance of showers before 3am. Mostly cloudy, with a low around 3. South southwest wind 5 to 10 km/h.

    Low: 3 °C

    Slight Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers after noon. Mostly cloudy, with a high near 19. Light and variable wind becoming southwest 9 to 14 km/h in the morning. Winds could gust as high as 35 km/h.

    High: 19 °C

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 1. South wind 5 to 14 km/h becoming northeast in the evening. Winds could gust as high as 34 km/h.

    Low: 1 °C

    Slight Chance
    Showers then
    Partly Cloudy

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 18. Breezy, with a west southwest wind 11 to 16 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 45 km/h.

    High: 18 °C

    Mostly Sunny
    then Sunny
    and Breezy

  • Monday Night

    Monday Night: A 20 percent chance of showers. Partly cloudy, with a low around -2. West southwest wind 5 to 10 km/h becoming calm after midnight.

    Low: -2 °C

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 17.

    High: 17 °C

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Rain showers likely before 3am, then rain and snow showers likely. Mostly cloudy, with a low around -3. Chance of precipitation is 70%.

    Low: -3 °C

    Showers
    Likely then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Rain and snow showers likely. Mostly cloudy, with a high near 10.

    High: 10 °C

    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain and snow showers likely before midnight, then a chance of snow showers. Mostly cloudy, with a low around -5.

    Low: -5 °C

    Rain/Snow
    Likely then
    Chance Snow
    Showers

Detailed Forecast

Tonight
A 20 percent chance of showers before 3am. Mostly cloudy, with a low around 3. South southwest wind 5 to 10 km/h.
Sunday
A 20 percent chance of showers after noon. Mostly cloudy, with a high near 19. Light and variable wind becoming southwest 9 to 14 km/h in the morning. Winds could gust as high as 35 km/h.
Sunday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 1. South wind 5 to 14 km/h becoming northeast in the evening. Winds could gust as high as 34 km/h.
Columbus Day
Mostly sunny, with a high near 18. Breezy, with a west southwest wind 11 to 16 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 45 km/h.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around -2. West southwest wind 5 to 10 km/h becoming calm after midnight.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 17.
Tuesday Night
Rain showers likely before 3am, then rain and snow showers likely. Mostly cloudy, with a low around -3. Chance of precipitation is 70%.
Wednesday
Rain and snow showers likely. Mostly cloudy, with a high near 10.
Wednesday Night
Rain and snow showers likely before midnight, then a chance of snow showers. Mostly cloudy, with a low around -5.
Thursday
A chance of snow showers before 3pm, then a chance of rain showers. Partly sunny, with a high near 11.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around -6.
Friday
A slight chance of snow showers. Sunny, with a high near 13.
Friday Night
Mostly clear, with a low around -5.
Saturday
Sunny, with a high near 16.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.25°N 105.82°W (Elev. 8386 m)
Last Update:
12:46 pm MDT Oct 10, 2026
Forecast Valid:
9pm MDT Oct 10, 2026-6pm MDT Oct 17, 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