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

Hazardous Weather Conditions

Current conditions at

Cheyenne, Cheyenne Airport (KCYS)

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

Fair

86°F

30°C

Humidity 18%
Wind Speed NW 17 G 28 mph
Barometer 30.18 in (1011.5 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 11 Aug 10:53 am MDT
Extended Forecast for

South Greeley WY

Red Flag Warning August 11, 12:00pm until August 11, 09:00pm
Click here for hazard details and duration
Red Flag Warning

  • Today

    Today: A slight chance of thunderstorms after 3pm. Partly sunny and hot, with a high near 93. North northwest wind around 10 mph. Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers before 9pm. Patchy smoke between 3am and 4am. Partly cloudy, with a low around 59. West southwest wind 5 to 10 mph.

    Low: 59 °F

    Slight Chance
    Showers then
    Patchy Smoke

  • Wednesday

    Wednesday: A chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 88. North northwest wind 5 to 10 mph becoming east southeast in the morning. Chance of precipitation is 60%.

    High: 88 °F

    Mostly Cloudy
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 55. Southeast wind 5 to 10 mph becoming southwest after midnight. Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers and possibly a thunderstorm after noon. High near 77. West southwest wind 5 to 15 mph becoming southeast in the afternoon. Chance of precipitation is 90%.

    High: 77 °F

    Chance
    Showers then
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 52. Chance of precipitation is 80%.

    Low: 52 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm after noon. High near 79. Chance of precipitation is 80%.

    High: 79 °F

    Partly Sunny
    then T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely after noon. Mostly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny
    then T-storms
    Likely

Detailed Forecast

Today
A slight chance of thunderstorms after 3pm. Partly sunny and hot, with a high near 93. North northwest wind around 10 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of showers before 9pm. Patchy smoke between 3am and 4am. Partly cloudy, with a low around 59. West southwest wind 5 to 10 mph.
Wednesday
A chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 88. North northwest wind 5 to 10 mph becoming east southeast in the morning. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 55. Southeast wind 5 to 10 mph becoming southwest after midnight. Chance of precipitation is 70%.
Thursday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 77. West southwest wind 5 to 15 mph becoming southeast in the afternoon. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 52. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm after noon. High near 79. Chance of precipitation is 80%.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 51.
Saturday
Showers and thunderstorms likely after noon. Mostly sunny, with a high near 80.
Saturday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 50.
Sunday
Showers and thunderstorms likely. Mostly sunny, with a high near 81.
Sunday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Greeley WY
 41.1°N 104.8°W (Elev. 6027 ft)
Last Update:
12:21 am MDT Aug 11, 2026
Forecast Valid:
11am MDT Aug 11, 2026-6pm MDT Aug 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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