Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Fire Weather Watch |
| Area(s): | Pine Ridge/Nebraska National Forest; Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland; Middle North Platte River Basin/Niobrara and Converse High Plains; Southwest Carbon County; Laramie Foothills and High Plains; Laramie East High Plains; Bordeaux/Chugwater/Wheatland; Goshen/Middle-Lower North Platte River Basin |
| Effective: | 2026-07-10 @ 3:43 am -> 2026-07-10 @ 7:30 pm |
| Onset: | 2026-07-11 @ 1:00 pm -> 2026-07-12 @ 9:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-07-10 @ 3:43 am |
| Headline: | Fire Weather Watch issued July 10 at 2:43AM MDT until July 12 at 8:00PM MDT by NWS Cheyenne WY |
| Description: |
Fire Weather Watch for portions of Southeast Wyoming. The National Weather Service in Cheyenne has issued a Fire Weather Watch, which is in effect from Saturday afternoon through Sunday evening. * AFFECTED AREA...Fire weather zone 434.Fire weather zone 417.Fire weather zone 418.Fire weather zone 423.Fire weather zone 430.Fire weather zone 431.Fire weather zone 432.Fire weather zone 433. * WIND... South 10 to 15 mph gusting up to 30 mph * HUMIDITY... Between 10 and 15 percent * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. |
| Alert: | Heat Advisory |
| Area(s): | Dawes; Box Butte; Scotts Bluff; Banner; Morrill; Kimball; Cheyenne; North Sioux; South Sioux; Converse County Lower Elevations; Niobrara County; East Platte County; Goshen County; Central Laramie County; East Laramie County |
| Effective: | 2026-07-10 @ 3:36 am -> 2026-07-10 @ 7:45 pm |
| Onset: | 2026-07-11 @ 1:00 pm -> 2026-07-13 @ 10:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-07-10 @ 3:36 am |
| Headline: | Heat Advisory issued July 10 at 2:36AM MDT until July 13 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Afternoon temperatures will be near or exceed 100 degrees with overnight temperatures between 65 to 70 providing little relief overnight * WHERE...Portions of panhandle Nebraska and east central and southeast Wyoming. * WHEN...From noon Saturday to 9 PM MDT Monday. * IMPACTS...Hot temperatures and poor hydration may cause heat illnesses. |
| Alert: | Extreme Heat Watch |
| Area(s): | Harding; Northern Perkins; Butte; Northern Meade Co Plains; Ziebach; Northern Foothills; Rapid City; Southern Foothills; Southern Black Hills; Custer Co Plains; Pennington Co Plains; Haakon; Western Fall River; Northern Oglala Lakota; Northern Jackson; Mellette; Sturgis/Piedmont Foothills; Southern Meade Co Plains; Hermosa Foothills; Eastern Fall River; Southern Jackson; Southern Perkins; Northern Campbell; Southern Campbell; Western Crook; Weston County Plains; Newcastle; Northeastern Crook |
| Effective: | 2026-07-10 @ 3:09 am -> 2026-07-10 @ 6:15 pm |
| Onset: | 2026-07-11 @ 1:00 pm -> 2026-07-14 @ 1:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Future |
| Issued By: | NWS Rapid City SD on 2026-07-10 @ 3:09 am |
| Headline: | Extreme Heat Watch issued July 10 at 2:09AM MDT until July 14 at 12:00AM MDT by NWS Rapid City SD |
| Description: |
* WHAT...Dangerously hot conditions with heat index values ranging from 100 to 105 possible. * WHERE...Portions of northwestern, south central, southwestern, and the Black Hills of South Dakota and northeast Wyoming. * WHEN...From Saturday afternoon through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. |
| Alert: | Extreme Heat Warning |
| Area(s): | Cody Foothills; North Bighorn Basin; Southwest Bighorn Basin; Southeast Bighorn Basin; Northeast Johnson County; Southeast Johnson County; Jackson Hole; Upper Wind River Basin; Wind River Basin; Lander Foothills; Green Mountains and Rattlesnake Range; Natrona County Lower Elevations; Star Valley; Upper Green River Basin Foothills; Upper Green River Basin; South Lincoln County; Rock Springs and Green River; Flaming Gorge; East Sweetwater County |
| Effective: | 2026-07-10 @ 2:59 am -> 2026-07-10 @ 6:30 pm |
| Onset: | 2026-07-11 @ 1:00 pm -> 2026-07-13 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-07-10 @ 2:59 am |
| Headline: | Extreme Heat Warning issued July 10 at 1:59AM MDT until July 13 at 9:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Dangerously hot conditions with temperatures 100 to 110 degrees below 6,000 feet and 90 to 100 degrees between 6,000 and 7,500 feet each day. * WHERE...Portions of central, north central, northwest, south central, southwest, and west central Wyoming. * WHEN...From noon Saturday to 9 PM MDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. |
| Alert: | Extreme Heat Warning |
| Area(s): | Musselshell; Treasure; Northern Rosebud; Custer; Fallon; Northern Stillwater; Powder River; Carter; Northern Park; Golden Valley; Red Lodge Foothills; Northern Big Horn; Southern Rosebud; Judith Gap; Paradise Valley; Livingston Area; Beartooth Foothills; Southern Big Horn; Southeastern Carbon; Northern Sweet Grass; Bighorn Canyon; Northern Carbon; Melville Foothills; Northeastern Yellowstone; Southern Wheatland; Southwestern Yellowstone; Sheridan Foothills |
| Effective: | 2026-07-10 @ 1:49 am -> 2026-07-11 @ 2:00 am |
| Onset: | 2026-07-11 @ 7:00 am -> 2026-07-14 @ 1:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-07-10 @ 1:49 am |
| Headline: | Extreme Heat Warning issued July 10 at 12:49AM MDT until July 14 at 12:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Dangerously hot conditions with high temperatures of 100 to 113 expected, hottest Sunday. Some all time record highs are possible on Sunday. * WHERE...Portions of central, south central, and southeast Montana and north central Wyoming. * WHEN...From 6 AM Saturday to midnight MDT Monday Night. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Extremely 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: | Heat Advisory |
| Area(s): | Southwest Wyoming |
| Effective: | 2026-07-09 @ 11:55 am -> 2026-07-10 @ 4:00 am |
| Onset: | 2026-07-12 @ 1:00 pm -> 2026-07-13 @ 10:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Salt Lake City UT on 2026-07-09 @ 11:55 am |
| Headline: | Heat Advisory issued July 9 at 10:55AM MDT until July 13 at 9:00PM MDT by NWS Salt Lake City UT |
| Description: |
* WHAT...Temperatures up to 98 expected. * WHERE...Southwest Wyoming. * WHEN...From noon Sunday to 9 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. |