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

Tropical Storm Edouard to Impact the Northwest Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard will bring tropical storm to hurricane conditions, heavy rainfall, flash and some river flooding, and storm surge to portions of Upper Texas and southwestern Louisiana coasts into Wednesday. Severe thunderstorms are possible in the Central Plains and Mid-Atlantic. Hot and humid conditions will expand from the Central Plains into the Ohio Valley and Mid-Atlantic. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

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

Mostly Cloudy

47°F

8°C

Humidity 97%
Wind Speed Calm
Barometer 30.39 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 1 Sep 6:15 am MDT
Extended Forecast for

Grand Lake CO

  • Today

    Today: A slight chance of showers before noon, then a slight chance of showers and thunderstorms between noon and 3pm. Cloudy through mid morning, then gradual clearing, with a high near 72. Light southwest wind becoming west southwest 6 to 11 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

    High: 72 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 39. West southwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 17 mph.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 72. Breezy, with a light and variable wind becoming southwest 12 to 17 mph in the morning. Winds could gust as high as 31 mph.

    High: 72 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 38. Breezy, with a southwest wind 5 to 15 mph, with gusts as high as 30 mph.

    Low: 38 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 74. Breezy, with a west southwest wind 5 to 15 mph, with gusts as high as 29 mph.

    High: 74 °F

    Sunny then
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers before noon, then a slight chance of showers and thunderstorms between noon and 3pm. Cloudy through mid morning, then gradual clearing, with a high near 72. Light southwest wind becoming west southwest 6 to 11 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 39. West southwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 17 mph.
Wednesday
Increasing clouds, with a high near 72. Breezy, with a light and variable wind becoming southwest 12 to 17 mph in the morning. Winds could gust as high as 31 mph.
Wednesday Night
Mostly clear, with a low around 38. Breezy, with a southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 74. Breezy, with a west southwest wind 5 to 15 mph, with gusts as high as 29 mph.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 41.
Saturday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.
Saturday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 42.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 76.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 42.
Labor Day
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.25°N 105.85°W (Elev. 8599 ft)
Last Update:
2:56 am MDT Sep 1, 2026
Forecast Valid:
6am MDT Sep 1, 2026-6pm MDT Sep 7, 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