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

Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

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

Overcast

58°F

14°C

Humidity 52%
Wind Speed Calm
Barometer 30.31 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 25 Sep 11:35 am MDT
Extended Forecast for

3 Miles S Grand Lake CO

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 60. West southwest wind 7 to 9 mph.

    High: 60 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers before 9pm. Partly cloudy, with a low around 40. West wind 5 to 7 mph becoming south after midnight.

    Low: 40 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64. Light west southwest wind increasing to 5 to 9 mph in the morning.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41. West wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 66. Light and variable wind becoming southwest 5 to 7 mph in the morning.

    High: 66 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.

    High: 58 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before midnight, then showers likely. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 53.

    High: 53 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 60. West southwest wind 7 to 9 mph.
Tonight
A 20 percent chance of showers before 9pm. Partly cloudy, with a low around 40. West wind 5 to 7 mph becoming south after midnight.
Saturday
Sunny, with a high near 64. Light west southwest wind increasing to 5 to 9 mph in the morning.
Saturday Night
Mostly clear, with a low around 41. West wind around 6 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 66. Light and variable wind becoming southwest 5 to 7 mph in the morning.
Sunday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 43.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Monday Night
Showers and possibly a thunderstorm before midnight, then showers likely. Mostly cloudy, with a low around 39.
Tuesday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 53.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 36.
Wednesday
A chance of showers. Mostly sunny, with a high near 56.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 35.
Thursday
A slight chance of showers. Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Grand Lake CO
 40.21°N 105.82°W (Elev. 8990 ft)
Last Update:
9:22 am MDT Sep 25, 2026
Forecast Valid:
12pm MDT Sep 25, 2026-6pm MDT Oct 1, 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