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

83°F

28°C

Humidity 8%
Wind Speed N 6 mph
Barometer 30.40 in
Dewpoint 15°F (-9°C)
Visibility NA
Heat Index80°F (27°C)
Last update 6 Jul 2:15 pm MDT
Extended Forecast for

Grand Lake CO

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Patchy smoke. Partly sunny, with a high near 83. South southwest wind around 6 mph becoming east.

    High: 83 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Patchy smoke. Mostly cloudy, then gradually becoming mostly clear, with a low around 44. East wind 5 to 7 mph becoming calm after midnight.

    Low: 44 °F

    Patchy Smoke

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Patchy smoke. Partly sunny, with a high near 82. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%.

    High: 82 °F

    Patchy Smoke
    then Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 44. West southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 40%.

    Low: 44 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 21 mph.

    High: 81 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 43. Chance of precipitation is 30%.

    Low: 43 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.

    High: 81 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Patchy smoke. Partly sunny, with a high near 83. South southwest wind around 6 mph becoming east.
Tonight
Patchy smoke. Mostly cloudy, then gradually becoming mostly clear, with a low around 44. East wind 5 to 7 mph becoming calm after midnight.
Tuesday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Patchy smoke. Partly sunny, with a high near 82. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 44. West southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 40%.
Wednesday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 21 mph.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 43. Chance of precipitation is 30%.
Thursday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.25°N 105.82°W (Elev. 8386 ft)
Last Update:
12:46 pm MDT Jul 6, 2026
Forecast Valid:
2pm MDT Jul 6, 2026-6pm MDT Jul 12, 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