Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Extreme Heat Warning |
| Area(s): | Musselshell; Treasure; Northern Rosebud; Custer; Fallon; Northern Stillwater; Powder River; Carter; Golden Valley; Northern Big Horn; Southern Rosebud; Southern Big Horn; Southeastern Carbon; Bighorn Canyon; Northern Carbon; Northeastern Yellowstone; Southwestern Yellowstone; Sheridan Foothills |
| Effective: | 2026-07-24 @ 2:28 am -> 2026-07-25 @ 2:30 am |
| Onset: | 2026-07-24 @ 10:00 am -> 2026-07-26 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-07-24 @ 2:28 am |
| Headline: | Extreme Heat Warning issued July 24 at 1:28AM MDT until July 26 at 9:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Dangerously hot conditions with high temperatures of 98 to 108, hottest over eastern Montana. Saturday is expected to be the hottest day. * WHERE...Portions of central, south central, and southeast Montana and north central Wyoming. * WHEN...From 9 AM this morning to 9 PM MDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Dangerously hot daytime temperatures combined with warm overnight low temperatures will produce cumulative heat stress. This heat stress will quickly become dangerous to anyone without adequate cooling and hydration. |
| Alert: | Fire Weather Watch |
| Area(s): | Gallatin National Forest; Wheatland County/Sweet Grass County; Stillwater County; Beartooth Ranger District Custer National Forest; Golden Valley County/Musselshell County; Yellowstone County; Crow Indian Reservation/Big Horn Canyon Rec Area; Northern Rosebud/Northern Treasure Counties; Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest; Custer County; Sioux Ranger District Custer National Forest; Sheridan County/Casper BLM; Bighorn National Forest |
| Effective: | 2026-07-24 @ 2:22 am -> 2026-07-25 @ 2:30 am |
| Onset: | 2026-07-25 @ 1:00 pm -> 2026-07-26 @ 1:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Billings MT on 2026-07-24 @ 2:22 am |
| Headline: | Fire Weather Watch issued July 24 at 1:22AM MDT until July 26 at 12:00AM MDT by NWS Billings MT |
| Description: |
* IMPACTS: Low humidities, hot temperatures, and high-based thunderstorms with gusty and erratic winds may create erratic fire behavior and new fire starts. * AFFECTED AREA: In North Central WY Fire Zones...274...284. In South Central MT Fire Zones...123...124...125...126...127 128...129. In Southeast MT Fire Zones...130...131...132. In Southeast MT and Northwest SD Fire Zone...133. * COUNTIES AFFECTED: In Central MT...Golden Valley...Musselshell...Wheatland. In North Central WY...Big Horn...Johnson...Sheridan...Washakie. In Northwest SD...Harding. In South Central MT...Big Horn...Carbon...Park...Stillwater Sweet Grass...Yellowstone. In Southeast MT...Carter...Custer...Fallon...Powder River Rosebud...Treasure. In Southwest MT...Gallatin. * WIND: Southwest 10 to 20 mph with gusts to 25 mph. * THUNDERSTORMS: Scattered afternoon and evening thunderstorms will produce gusty and erratic winds, and spotty rainfall. * HUMIDITY: Minimums of 11 to 19 percent. * TEMPERATURES: Highs of 99 to 107 below 5000 feet, hottest in the east. |
| Alert: | Heat Advisory |
| Area(s): | Box Butte; Scotts Bluff; Banner; Morrill; Kimball; Cheyenne; South Sioux; Converse County Lower Elevations; Niobrara County; East Platte County; Goshen County |
| Effective: | 2026-07-24 @ 2:05 am -> 2026-07-24 @ 7:15 pm |
| Onset: | 2026-07-25 @ 12:00 pm -> 2026-07-27 @ 10:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-07-24 @ 2:05 am |
| Headline: | Heat Advisory issued July 24 at 1:05AM MDT until July 27 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Afternoon high temperatures between 100 and 106 degrees. Overnight low temperatures in the mid 60s to around 70 degrees. * WHERE...Portions of panhandle Nebraska and east central and southeast Wyoming. * WHEN...From 11 AM Saturday to 9 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. |
| Alert: | Heat Advisory |
| Area(s): | Central Laramie County; East Laramie County |
| Effective: | 2026-07-24 @ 2:05 am -> 2026-07-24 @ 7:15 pm |
| Onset: | 2026-07-25 @ 12:00 pm -> 2026-07-27 @ 10:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-07-24 @ 2:05 am |
| Headline: | Heat Advisory issued July 24 at 1:05AM MDT until July 27 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Afternoon high temperatures between 95 and 99 degrees. Overnight low temperatures in the mid 60s. * WHERE...Central Laramie County and East Laramie County. * WHEN...From 11 AM Saturday to 9 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. |