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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

42°F

6°C

Humidity 92%
Wind Speed Calm
Barometer 30.43 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 17 Aug 5:35 am MDT
Extended Forecast for

4 Miles NE Gould CO

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 73. Light and variable wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 15 mph.

    High: 73 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 48. West wind around 6 mph becoming light and variable after midnight.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76. Calm wind becoming west southwest around 6 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. Northwest wind around 6 mph becoming southeast after midnight. Winds could gust as high as 15 mph.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Calm wind becoming northeast 5 to 7 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.

    High: 80 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 73. Light and variable wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 15 mph.
Tonight
Mostly clear, with a low around 48. West wind around 6 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 76. Calm wind becoming west southwest around 6 mph in the afternoon. Winds could gust as high as 16 mph.
Monday Night
Mostly clear, with a low around 52. Northwest wind around 6 mph becoming southeast after midnight. Winds could gust as high as 15 mph.
Tuesday
Sunny, with a high near 78. Calm wind becoming northeast 5 to 7 mph in the afternoon. Winds could gust as high as 16 mph.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 76.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Gould CO
 40.55°N 105.97°W (Elev. 9170 ft)
Last Update:
4:01 am MDT Aug 17, 2025
Forecast Valid:
5am MDT Aug 17, 2025-6pm MDT Aug 23, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation