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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Partly Cloudy

73°F

23°C

Humidity 28%
Wind Speed N 3 mph
Barometer 30.43 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 17 Aug 11:35 am MDT
Extended Forecast for

4 Miles NNW Gould CO

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 76. West southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 76 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 44. West wind 5 to 9 mph becoming southeast in the evening. Winds could gust as high as 15 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. North northwest wind 6 to 9 mph becoming southeast after midnight. Winds could gust as high as 17 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. Calm wind becoming north northwest 5 to 9 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 76. West southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 44. West wind 5 to 9 mph becoming southeast in the evening. Winds could gust as high as 15 mph.
Monday
Sunny, with a high near 79. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 45. North northwest wind 6 to 9 mph becoming southeast after midnight. Winds could gust as high as 17 mph.
Tuesday
Sunny, with a high near 81. Calm wind becoming north northwest 5 to 9 mph in the afternoon. Winds could gust as high as 17 mph.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 48.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 79.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Gould CO
 40.57°N 106.06°W (Elev. 8642 ft)
Last Update:
7:14 am MDT Aug 17, 2025
Forecast Valid:
11am 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