Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Heat Advisory |
| Area(s): | Rapid City; Southern Foothills; Custer Co Plains; Pennington Co Plains; Haakon; Western Fall River; Northern Oglala Lakota; Northern Jackson; Bennett; Mellette; Todd; Tripp; Sturgis/Piedmont Foothills; Southern Meade Co Plains; Hermosa Foothills; Eastern Fall River; Southern Oglala Lakota; Southern Jackson; Southern Campbell; Weston County Plains; Newcastle |
| Effective: | 2026-07-20 @ 2:50 pm -> 2026-07-20 @ 10:00 pm |
| Onset: | 2026-07-20 @ 2:50 pm -> 2026-07-20 @ 10:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Rapid City SD on 2026-07-20 @ 2:50 pm |
| Headline: | Heat Advisory issued July 20 at 1:50PM MDT until July 20 at 9:00PM MDT by NWS Rapid City SD |
| Description: |
* WHAT...Heat index values up to 100. * WHERE...Portions of northwestern, south central, and southwestern South Dakota and northeast Wyoming. * WHEN...Until 9 PM MDT /10 PM CDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. |
| Alert: | Heat Advisory |
| Area(s): | Box Butte; Scotts Bluff; Banner; Morrill; South Sioux; Converse County Lower Elevations; Niobrara County; Goshen County |
| Effective: | 2026-07-20 @ 12:53 am -> 2026-07-20 @ 7:00 pm |
| Onset: | 2026-07-20 @ 12:53 am -> 2026-07-20 @ 7:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-07-20 @ 12:53 am |
| Headline: | Heat Advisory issued July 19 at 11:53PM MDT until July 20 at 6:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Afternoon temperatures in the upper 90's to low 100's with overnight lows in the mid 60's to low 70's. * WHERE...In Nebraska, Banner County, Box Butte County, Morrill County, Scotts Bluff County, and Southern Sioux County. In Wyoming, Converse County Lower Elevations, Niobrara County, and Goshen County. * WHEN...Until 6 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. |