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

55°F

13°C

Humidity 29%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 17 Jun 5:35 am MDT
Extended Forecast for

6 Miles W Grand Lake 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 71. Breezy, with a west wind 20 to 23 mph, with gusts as high as 34 mph.

    High: 71 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 42. Breezy, with a west wind 16 to 21 mph becoming west northwest 5 to 10 mph after midnight. Winds could gust as high as 33 mph.

    Low: 42 °F

    Mostly Clear
    and Breezy
    then Clear

  • Thursday

    Thursday: Sunny, with a high near 70. West southwest wind 5 to 14 mph, with gusts as high as 22 mph.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. West northwest wind 8 to 13 mph becoming light northwest  after midnight. Winds could gust as high as 23 mph.

    Low: 45 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 74. Light and variable wind becoming west northwest 8 to 13 mph in the morning. Winds could gust as high as 26 mph.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 71. Breezy.

    High: 71 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42. Breezy.

    Low: 42 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 66. Breezy.

    High: 66 °F

    Sunny and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 71. Breezy, with a west wind 20 to 23 mph, with gusts as high as 34 mph.
Tonight
Mostly clear, with a low around 42. Breezy, with a west wind 16 to 21 mph becoming west northwest 5 to 10 mph after midnight. Winds could gust as high as 33 mph.
Thursday
Sunny, with a high near 70. West southwest wind 5 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 45. West northwest wind 8 to 13 mph becoming light northwest after midnight. Winds could gust as high as 23 mph.
Juneteenth
Sunny, with a high near 74. Light and variable wind becoming west northwest 8 to 13 mph in the morning. Winds could gust as high as 26 mph.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 71. Breezy.
Saturday Night
Mostly clear, with a low around 42. Breezy.
Sunday
Sunny, with a high near 66. Breezy.
Sunday Night
Partly cloudy, with a low around 42.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Sunny, with a high near 71.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles W Grand Lake CO
 40.25°N 105.94°W (Elev. 10000 ft)
12:46 am MDT Jun 17, 2026
5am MDT Jun 17, 2026-6pm MDT Jun 23, 2026
 
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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