National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms for Mid-Atlantic and Northeast; Typhoon Approaching Guam

A cold front will sweep eastward today accompanied by strong to severe thunderstorms for the mid-Atlantic and Northeast today. In the wake of this cold front, autumn like temperatures and gusty winds from the Plains, Mississippi Valley, Great Lakes to most of the eastern seaboard. Fire weather conditions for lower Mississippi Valley into portions of California. For Guam, a typhoon is approaching. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Fair

29°F

-2°C

Humidity 46%
Wind Speed SE 5 mph
Barometer 30.72 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 17 Oct 1:15 am MDT
Extended Forecast for

Grand Lake CO

  • Overnight

    Overnight: Clear, with a low around 19. Light southeast wind.

    Low: 19 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 62. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24. Light and variable wind.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 64. Calm wind becoming west southwest around 5 mph.

    High: 64 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 28. East wind 5 to 7 mph becoming calm after midnight.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 28.

    Low: 28 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 19. Light southeast wind.
Saturday
Sunny, with a high near 62. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 24. Light and variable wind.
Sunday
Mostly sunny, with a high near 64. Calm wind becoming west southwest around 5 mph.
Sunday Night
Mostly cloudy, with a low around 28. East wind 5 to 7 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 64.
Monday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 32.
Thursday
A chance of showers. Partly sunny, with a high near 66.
Thursday Night
Rain and snow showers likely. Mostly cloudy, with a low around 31.
Friday
Rain and snow showers likely. Mostly cloudy, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.25°N 105.82°W (Elev. 8386 ft)
Last Update:
12:46 am MDT Oct 17, 2026
Forecast Valid:
1am MDT Oct 17, 2026-6pm MDT Oct 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation