Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Special Weather Statement |
| Area(s): | South Laramie Range; South Laramie Range Foothills; Central Laramie County; East Laramie County |
| Effective: | 2026-07-10 @ 7:14 pm -> 2026-07-10 @ 7:45 pm |
| Onset: | 2026-07-10 @ 7:14 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-07-10 @ 7:14 pm |
| Headline: | Special Weather Statement issued July 10 at 6:14PM MDT by NWS Cheyenne WY |
| Description: |
At 614 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from 8 miles northwest of Whitaker to 6 miles north of Laramie County Fairgrounds at Archer to 7 miles southeast of Bison Crossing. Movement was east at 35 mph. HAZARD...Wind gusts of 50 to 55 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Cheyenne, Burns, Happy Valley, Federal, Table Mountain Ranches, Willadsen Estates, Rocking Star Ranch, Silver Sage Estates, Granite Canon, Fox Farm-College, Cheyenne Regional Airport, Winchester Hills, North Crow Campground, Ranchettes, Warren AFB, Frontier Park, North Cheyenne, Horse Creek, Curt Gowdy State Park, and Bison Crossing. This includes the following highways... Interstate 25 in Wyoming between mile markers 1 and 41. Interstate 80 in Wyoming between mile markers 334 and 388. |
| Alert: | Fire Weather Watch |
| Area(s): | Fall River County Area; Northern Foot Hills; Eastern Foot Hills; Custer County Plains; Pine Ridge Area; Butte County Area; West Central Plains; Badlands Area; Northern Campbell; Southern Campbell; Crook County Plains; Weston County Plains |
| Effective: | 2026-07-10 @ 6:11 pm -> 2026-07-11 @ 2:15 am |
| Onset: | 2026-07-12 @ 11:00 am -> 2026-07-12 @ 9:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Rapid City SD on 2026-07-10 @ 6:11 pm |
| Headline: | Fire Weather Watch issued July 10 at 5:11PM MDT until July 12 at 8:00PM MDT by NWS Rapid City SD |
| Description: |
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FALL RIVER COUNTY AREA, NORTHERN FOOT HILLS, EASTERN FOOT HILLS, CUSTER COUNTY PLAINS, PINE RIDGE AREA, BUTTE COUNTY AREA, WEST CENTRAL PLAINS, BADLANDS AREA, NORTHERN CAMPBELL, SOUTHERN CAMPBELL, CROOK COUNTY PLAINS, AND WESTON COUNTY PLAINS... * AFFECTED AREA...Fire Weather Zones 314, 315, 316, 317, 322, 323, 324, 325, 326, 327, 329, and 332. * TIMING...From Sunday morning through Sunday evening. * WINDS...Southeast winds 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...Relative Humidity between 10 to 18 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended. |
| Alert: | Heat Advisory |
| Area(s): | Harding; Northern Perkins; Butte; Northern Meade Co Plains; Ziebach; Northern Foothills; 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 Perkins; Northern Campbell; Southern Campbell; Western Crook; Weston County Plains; Newcastle; Northeastern Crook |
| Effective: | 2026-07-10 @ 6:10 pm -> 2026-07-11 @ 9:15 am |
| Onset: | 2026-07-11 @ 1:00 pm -> 2026-07-14 @ 9:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Rapid City SD on 2026-07-10 @ 6:10 pm |
| Headline: | Heat Advisory issued July 10 at 5:10PM MDT until July 14 at 8:00PM MDT by NWS Rapid City SD |
| Description: |
* WHAT...Heat index values up to 103 expected. * WHERE...Portions of northwestern, south central, and southwestern South Dakota and northeast Wyoming. * WHEN...From noon MDT /1 PM CDT/ Saturday to 8 PM MDT /9 PM CDT/ Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. |
| 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 @ 2:01 pm -> 2026-07-11 @ 2:15 pm |
| 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 @ 2:01 pm |
| Headline: | Extreme Heat Warning issued July 10 at 1:01PM MDT until July 14 at 12:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Dangerously hot conditions with high temperatures of 100 to 115 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: | 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 @ 1:26 pm -> 2026-07-11 @ 7:00 am |
| 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 @ 1:26 pm |
| Headline: | Fire Weather Watch issued July 10 at 12:26PM MDT until July 12 at 8:00PM MDT by NWS Cheyenne WY |
| Description: |
Fire Weather Watch for portions of Southeast Wyoming. * AFFECTED AREA...Fire weather zones 417, 418, 423, and 430 through 434. * 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 @ 1:20 pm -> 2026-07-11 @ 7:00 am |
| 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 @ 1:20 pm |
| Headline: | Heat Advisory issued July 10 at 12:20PM 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: | Fire Weather Watch |
| Area(s): | 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 |
| Effective: | 2026-07-10 @ 12:09 pm -> 2026-07-11 @ 12:15 pm |
| Onset: | 2026-07-12 @ 9:00 am -> 2026-07-12 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Billings MT on 2026-07-10 @ 12:09 pm |
| Headline: | Fire Weather Watch issued July 10 at 11:09AM MDT until July 12 at 9:00PM MDT by NWS Billings MT |
| Description: |
* IMPACTS: Low humidities, very hot temperatures, strong gusty winds may create erratic fire behavior. * AFFECTED AREA: In North Central WY Fire Zone...274. In South Central MT Fire Zones...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...Sheridan. 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. * WIND: South 10 to 20 mph with gusts up to 30 mph. * HUMIDITY: As low as 7 percent. * TEMPERATURES: Up to 112. |
| Alert: | Extreme Heat Warning |
| Area(s): | Southwest Wyoming |
| Effective: | 2026-07-10 @ 11:06 am -> 2026-07-11 @ 2:15 am |
| Onset: | 2026-07-11 @ 1:00 pm -> 2026-07-13 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Salt Lake City UT on 2026-07-10 @ 11:06 am |
| Headline: | Extreme Heat Warning issued July 10 at 10:06AM MDT until July 13 at 9:00PM MDT by NWS Salt Lake City UT |
| Description: |
* WHAT...Dangerously hot conditions with temperatures up to 98 degrees expected. * WHERE...Southwest Wyoming. * WHEN...From noon Saturday to 9 PM MDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...There is high confidence that temperatures will warm to values challenging daily, monthly, or even all-time high temperature records Saturday through Monday. |
| 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 @ 10:32 am -> 2026-07-11 @ 8:00 am |
| 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 @ 10:32 am |
| Headline: | Extreme Heat Warning issued July 10 at 9:32AM 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: | Fire Weather Watch |
| Area(s): | North Bighorn Basin/Worland BLM; Cody Foothills; Natrona County/Casper BLM; Johnson County/Casper BLM; South Bighorn Basin/Worland BLM; Upper Wind River Basin/Wind River Basin |
| Effective: | 2026-07-10 @ 10:30 am -> 2026-07-11 @ 8:00 am |
| Onset: | 2026-07-12 @ 12:00 pm -> 2026-07-12 @ 11:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Riverton WY on 2026-07-10 @ 10:30 am |
| Headline: | Fire Weather Watch issued July 10 at 9:30AM MDT until July 12 at 10:00PM MDT by NWS Riverton WY |
| Description: |
The National Weather Service in Riverton has issued a Fire Weather Watch, which is in effect from Sunday morning through Sunday evening. * IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...280...283. In North Central WY Fire Zones...275...276...281...282. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Big Horn...Hot Springs...Johnson...Park Washakie. * WIND: South to Southeast 15 to 25 mph with gusts up to 35 mph. * HUMIDITY: As low as 5 percent. * TEMPERATURES: Highs between 98 and 108 degrees. |