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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair and Breezy

69°F

21°C

Humidity 20%
Wind Speed W 25 G 35 mph
Barometer 30.11 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 17 Jun 8:55 am MDT
Extended Forecast for

Downieville CO

  • Today

    Today: Sunny, with a high near 79. Breezy, with a west wind 20 to 23 mph, with gusts as high as 34 mph.

    High: 79 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 43. Breezy, with a west wind 13 to 18 mph becoming light and variable. Winds could gust as high as 30 mph.

    Low: 43 °F

    Mostly Clear
    and Breezy
    then Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Light and variable wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 22 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47. Breezy, with a north northwest wind 10 to 15 mph becoming light and variable. Winds could gust as high as 24 mph.

    Low: 47 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 82. Light and variable wind becoming north northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Breezy.

    High: 81 °F

    Breezy. Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. Breezy.

    Low: 46 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after noon. Sunny, with a high near 76. Breezy.

    High: 76 °F

    Breezy. Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 79. Breezy, with a west wind 20 to 23 mph, with gusts as high as 34 mph.
Tonight
Mostly clear, with a low around 43. Breezy, with a west wind 13 to 18 mph becoming light and variable. Winds could gust as high as 30 mph.
Thursday
Sunny, with a high near 77. Light and variable wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 22 mph.
Thursday Night
Mostly clear, with a low around 47. Breezy, with a north northwest wind 10 to 15 mph becoming light and variable. Winds could gust as high as 24 mph.
Juneteenth
Mostly sunny, with a high near 82. Light and variable wind becoming north northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 49.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Breezy.
Saturday Night
Mostly clear, with a low around 46. Breezy.
Sunday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 76. Breezy.
Sunday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 76.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 45.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Downieville CO
 39.76°N 105.62°W (Elev. 9213 ft)
Last Update:
12:46 am MDT Jun 17, 2026
Forecast Valid:
9am MDT Jun 17, 2026-6pm MDT Jun 23, 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