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

Cheyenne, Cheyenne Airport (KCYS)

Lat: 41.16°NLon: 104.81°WElev: 6116ft.

Fair

82°F

28°C

Humidity 22%
Wind Speed SE 7 mph
Barometer 30.14 in (1011.5 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Aug 5:53 pm MDT
Extended Forecast for

Hereford CO

  • Tonight

    Tonight: Mostly clear, with a low around 58. North wind 5 to 7 mph becoming east in the evening.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Light and variable wind becoming southeast 5 to 7 mph in the morning.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. South southeast wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Light and variable wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58. Southeast wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58.

    Low: 58 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 58. North wind 5 to 7 mph becoming east in the evening.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Light and variable wind becoming southeast 5 to 7 mph in the morning.
Monday Night
Mostly clear, with a low around 57. South southeast wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.
Tuesday
Sunny, with a high near 88. Light and variable wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 58. Southeast wind 6 to 11 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Clear, with a low around 58.
Thursday
Sunny, with a high near 93.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58.
Friday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 79.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 77.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Hereford CO
 40.98°N 104.3°W (Elev. 5299 ft)
Last Update:
3:15 pm MDT Aug 17, 2025
Forecast Valid:
6pm MDT Aug 17, 2025-6pm MDT Aug 24, 2025
 
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Additional Resources

Radar & Satellite Image

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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