Heavy Rain and Flooding Possible in the Southwest U.S, Ohio Valley, and Hawaii

Heavy rainfall is expected to continue through Thursday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. Heavy rain and flash flooding is also expected over the southern Appalachians and Ohio Valley. Tropical Depression 15-E, southeast of Hawaii, is expected to bring heavy rain beginning today to the Big Island and Maui. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

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

Overcast

54°F

12°C

Humidity 66%
Wind Speed N 6 mph
Barometer 30.40 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 23 Sep 9:55 am MDT
Extended Forecast for

Grand Lake CO

  • Today

    Today: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 65. Calm wind becoming west southwest 5 to 8 mph in the afternoon.  Chance of precipitation is 50%.

    High: 65 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers.  Mostly cloudy, with a low around 41. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 41 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after noon.  Cloudy, with a high near 57. Calm wind becoming east southeast around 5 mph in the afternoon.  Chance of precipitation is 70%.

    High: 57 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Patchy fog after 9pm.  Otherwise, mostly cloudy, with a low around 34. East wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 50%.

    Low: 34 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 3pm.  Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 61. Light west southwest wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 30%.

    High: 61 °F

    Chance
    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 33.

    Low: 33 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am.  Otherwise, sunny, with a high near 66.

    High: 66 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 65. Calm wind becoming west southwest 5 to 8 mph in the afternoon. Chance of precipitation is 50%.
Tonight
A 40 percent chance of showers. Mostly cloudy, with a low around 41. North northwest wind around 6 mph becoming calm in the evening.
Thursday
Showers likely, with thunderstorms also possible after noon. Cloudy, with a high near 57. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 34. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Friday
A chance of showers, with thunderstorms also possible after 3pm. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 61. Light west southwest wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 30%.
Friday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 33.
Saturday
Patchy fog before 9am. Otherwise, sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 61.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 32.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.25°N 105.82°W (Elev. 8386 ft)
12:46 am MDT Sep 23, 2026
10am MDT Sep 23, 2026-6pm MDT Sep 29, 2026
 
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Additional Resources

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