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 >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

61°F

16°C

Humidity 25%
Wind Speed S 6 mph
Barometer 30.12 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 17 Jun 6:55 am MDT
Extended Forecast for

3 Miles WSW Allenspark CO

Red Flag Warning June 17, 12:00pm until June 17, 08:00pm
Click here for hazard details and duration
Red Flag Warning

  • Today

    Today: Sunny, with a high near 68. Very windy, with a west wind 26 to 36 mph, with gusts as high as 55 mph.

    High: 68 °F

    Sunny and
    Very Windy

  • Tonight

    Tonight: Mostly clear, with a low around 40. Windy, with a west wind 21 to 26 mph becoming light and variable. Winds could gust as high as 40 mph.

    Low: 40 °F

    Mostly Clear
    and Windy
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 66. Southwest wind 7 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 16 mph.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. Northwest wind 5 to 9 mph becoming calm. Winds could gust as high as 16 mph.

    Low: 44 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 65. West wind 6 to 9 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65. Windy.

    High: 65 °F

    Sunny and
    Breezy then
    Slight Chance
    T-storms and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41. Windy.

    Low: 41 °F

    Mostly Clear
    and Windy
    then Mostly
    Clear

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after noon. Sunny, with a high near 60. Breezy.

    High: 60 °F

    Breezy. Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 68. Very windy, with a west wind 26 to 36 mph, with gusts as high as 55 mph.
Tonight
Mostly clear, with a low around 40. Windy, with a west wind 21 to 26 mph becoming light and variable. Winds could gust as high as 40 mph.
Thursday
Sunny, with a high near 66. Southwest wind 7 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 16 mph.
Thursday Night
Mostly clear, with a low around 44. Northwest wind 5 to 9 mph becoming calm. Winds could gust as high as 16 mph.
Juneteenth
Mostly sunny, with a high near 65. West wind 6 to 9 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 46.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65. Windy.
Saturday Night
Mostly clear, with a low around 41. Windy.
Sunday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 60. Breezy.
Sunday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 40.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 60.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 42.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Allenspark CO
 40.18°N 105.58°W (Elev. 10728 ft)
Last Update:
12:46 am MDT Jun 17, 2026
Forecast Valid:
7am 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