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

Greeley, Greeley-Weld County Airport (KGXY)

Lat: 40.43°NLon: 104.63°WElev: 4698ft.

Fair

61°F

16°C

Humidity 75%
Wind Speed Calm
Barometer 30.08 in (1014.2 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 17 Aug 3:56 am MDT
Extended Forecast for

Nunn CO

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 91. Northwest wind 8 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 16 mph.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 58. Northwest wind 6 to 8 mph becoming northeast in the evening.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 92. North wind 5 to 10 mph becoming south in the morning. Winds could gust as high as 17 mph.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. South southeast wind 6 to 10 mph becoming north northwest after midnight. Winds could gust as high as 17 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. Northwest wind 5 to 13 mph becoming east southeast in the morning. Winds could gust as high as 21 mph.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 91. Northwest wind 8 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 16 mph.
Tonight
Mostly clear, with a low around 58. Northwest wind 6 to 8 mph becoming northeast in the evening.
Monday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 92. North wind 5 to 10 mph becoming south in the morning. Winds could gust as high as 17 mph.
Monday Night
Mostly clear, with a low around 57. South southeast wind 6 to 10 mph becoming north northwest after midnight. Winds could gust as high as 17 mph.
Tuesday
Sunny, with a high near 92. Northwest wind 5 to 13 mph becoming east southeast in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Clear, with a low around 58.
Thursday
Sunny, with a high near 96.
Thursday Night
Partly cloudy, with a low around 60.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nunn CO
 40.71°N 104.79°W (Elev. 5213 ft)
Last Update:
4:01 am MDT Aug 17, 2025
Forecast Valid:
4am 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation