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

48°F

9°C

Humidity 90%
Wind Speed Calm
Barometer 30.36 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 25 Sep 3:15 am MDT
Extended Forecast for

2 Miles SW Downieville CO

  • Overnight

    Overnight: Mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 64. Calm wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 60%.

    High: 64 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 39. West wind 7 to 14 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 69. West wind 5 to 13 mph becoming north northeast in the afternoon. Winds could gust as high as 21 mph.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41. Light and variable wind becoming west around 6 mph in the evening.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70.

    High: 70 °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 slight chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 64.

    High: 64 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before midnight, then showers likely. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 41. Calm wind.
Friday
Showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 64. Calm wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 39. West wind 7 to 14 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 69. West wind 5 to 13 mph becoming north northeast in the afternoon. Winds could gust as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 41. Light and variable wind becoming west around 6 mph in the evening.
Sunday
Partly sunny, with a high near 70.
Sunday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 43.
Monday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 64.
Monday Night
Showers and possibly a thunderstorm before midnight, then showers likely. Mostly cloudy, with a low around 40.
Tuesday
Showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 56.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 37.
Wednesday
A chance of rain and snow showers. Some thunder is also possible. Partly sunny, with a high near 60.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 36.
Thursday
A slight chance of showers. Sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Downieville CO
 39.76°N 105.62°W (Elev. 9213 ft)
Last Update:
12:46 am MDT Sep 25, 2026
Forecast Valid:
3am 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