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.

Partly Cloudy

66°F

19°C

Humidity 46%
Wind Speed SW 8 mph
Barometer 30.38 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 1 Sep 12:35 pm MDT
Extended Forecast for

6 Miles WNW Arapahoe Peak CO

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 63. West wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 63 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers before 9pm. Partly cloudy, with a low around 44. South southwest wind 5 to 9 mph, with gusts as high as 16 mph.

    Low: 44 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 65. West southwest wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 65 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. West wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 67. West wind 5 to 11 mph, with gusts as high as 22 mph.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 68.

    High: 68 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 63. West wind 10 to 13 mph, with gusts as high as 22 mph.
Tonight
A 20 percent chance of showers before 9pm. Partly cloudy, with a low around 44. South southwest wind 5 to 9 mph, with gusts as high as 16 mph.
Wednesday
Mostly sunny, with a high near 65. West southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 44. West wind 5 to 11 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 67. West wind 5 to 11 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 45.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 47.
Saturday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 68.
Saturday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 49.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 67.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
Labor Day
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WNW Arapahoe Peak CO
 40.06°N 105.74°W (Elev. 10095 ft)
Last Update:
12:47 pm MDT Sep 1, 2026
Forecast Valid:
12pm MDT Sep 1, 2026-6pm MDT Sep 7, 2026
 
Forecast Discussion
 
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Additional Resources

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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