CHEYENNE, Wyo. — Cheyenne residents can expect hot and dry conditions today. Above-average temperatures will persist, with daytime highs reaching the 80s and 90s. Morning temperatures range from the lower 50s to upper 60s. The highest elevations of the Medicine Bow Mountain Range are cooler, reporting temperatures in the mid- to upper 30s.
Surface high pressure is currently at 1,019 millibars across east-central Wyoming and the Black Hills of South Dakota. This high-pressure system typically brings stable and dry weather conditions. Clear skies and very dry air are contributing to today’s high temperatures. The air will remain stagnant, with only a few areas seeing wind gusts above 10 mph.
Fire weather concerns are elevated due to the hot and dry conditions. Tomorrow, Cheyenne will see similar temperatures, with a chance of thunderstorms in the afternoon. These storms may bring gusty winds up to 50 mph and lightning.
By the weekend, there’s an increased chance of precipitation, with monsoonal moisture moving into the area. Highs will remain in the high 80s to low 100s, with the hottest day expected on Sunday. Next week, more unsettled weather is likely, with numerous showers and thunderstorms bringing some relief from the heat.
Changes may be on the horizon. The Climate Prediction Center’s outlook for Aug. 7–13 favors cooler temperatures and higher chances for showers and thunderstorms in southeast Wyoming and western Nebraska.
Detailed Forecast for Cheyenne
- Today: There will be widespread haze before 8 a.m. It will be sunny and hot, with a high near 92. A southwest wind will shift to the southeast in the afternoon, blowing at 5–10 mph.
- Tonight: Expect mostly clear skies, with a low around 59. The southeast wind will shift to the west-southwest after midnight, blowing at 5–10 mph.
- Friday: There is a 30% chance of showers and thunderstorms after noon. It will be mostly sunny and hot, with a high near 92. A west wind will shift to the southeast in the afternoon, blowing at 5–10 mph.
- Friday Night: There is a chance of sprinkles after midnight. The sky will be mostly clear, with a low around 57. The southeast wind will shift to the west after midnight, blowing at 5–10 mph.
- Saturday: It will be sunny and hot, with a high near 92. The west wind will shift to the east in the afternoon, blowing at 5–15 mph.
- Saturday Night: Expect partly cloudy skies, with a low around 58.
- Sunday: There is a 30% chance of showers and thunderstorms after noon. It will be mostly sunny and hot, with a high near 95.
- Sunday Night: There is a slight chance of showers and thunderstorms before midnight. The sky will be mostly cloudy, with a low around 63.
- Monday: There is a chance of showers and thunderstorms after noon. It will be mostly sunny and hot, with a high near 91.
- Monday Night: There is a chance of showers and thunderstorms before midnight. The sky will be mostly cloudy, with a low around 57.
- Tuesday: There is a chance of showers and thunderstorms. It will be partly sunny, with a high near 88.
- Tuesday Night: There is a chance of showers and thunderstorms. The sky will be mostly cloudy, with a low around 55.
- Wednesday: There is a chance of showers and thunderstorms. It will be partly sunny, with a high near 83.
