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.

Fair

55°F

13°C

Humidity 83%
Wind Speed Calm
Barometer 30.41 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 1 Sep 9:35 am MDT
Extended Forecast for

10 Miles NNE Silverthorne CO

  • Today

    Today: Sunny, with a high near 71. West wind 5 to 9 mph, with gusts as high as 20 mph.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. West wind 5 to 7 mph becoming calm after midnight.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. Light and variable wind becoming west southwest 6 to 11 mph in the morning. Winds could gust as high as 24 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. West southwest wind 5 to 9 mph becoming light. Winds could gust as high as 22 mph.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.

    High: 76 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 71. West wind 5 to 9 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 40. West wind 5 to 7 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 72. Light and variable wind becoming west southwest 6 to 11 mph in the morning. Winds could gust as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 39. West southwest wind 5 to 9 mph becoming light. Winds could gust as high as 22 mph.
Thursday
Sunny, with a high near 74. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Thursday Night
Mostly clear, with a low around 38.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 42.
Saturday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
Saturday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 44.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 74.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44.
Labor Day
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNE Silverthorne CO
 39.8°N 106.03°W (Elev. 8996 ft)
Last Update:
2:56 am MDT Sep 1, 2026
Forecast Valid:
9am MDT Sep 1, 2026-6pm MDT Sep 7, 2026
 
Forecast Discussion
 
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Additional Resources

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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