Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
128 AM MDT Fri Jul 24 2026
MTZ029>034-036-037-042-057-058-138-139-169-170-173-235-WYZ199-250730-
/O.CON.KBYZ.XH.W.0002.260724T1500Z-260727T0300Z/
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-
Including the locations of Billings, Sheridan, Lavina, Lodge Grass,
Pompeys Pillar, Forsyth, Hardin, Joliet, Roundup, Ryegate, Columbus,
Lame Deer, Hysham, Bridger, Baker, Fromberg, Ekalaka, Fort Smith,
Custer, Colstrip, Pryor, Broadus, Crow Agency, Absarokee, and Miles
City
128 AM MDT Fri Jul 24 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9
PM MDT SUNDAY...
* 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
Red Flag Warning
URGENT - FIRE WEATHER MESSAGE
National Weather Service Rapid City SD
937 AM MDT Fri Jul 24 2026
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO MIDNIGHT MDT
SATURDAY NIGHT DUE TO DRY LIGHTNING FOR NORTHERN BLACK HILLS, CENTRAL
BLACK HILLS, SOUTHERN BLACK HILLS, FALL RIVER COUNTY AREA, NORTHERN
FOOT HILLS, EASTERN FOOT HILLS, CUSTER COUNTY PLAINS, PINE RIDGE
AREA, BUTTE COUNTY AREA, PERKINS COUNTY, WEST CENTRAL PLAINS, ZIEBACH
COUNTY, HAAKON COUNTY AREA, BADLANDS AREA, BENNETT COUNTY AREA,
NORTHERN CAMPBELL, SOUTHERN CAMPBELL, CROOK COUNTY PLAINS, WESTON
COUNTY PLAINS, AND WYOMING BLACK HILLS...
SDZ319>333-WYZ314>318-242345-
/O.NEW.KUNR.FW.W.0029.260725T1800Z-260726T0600Z/
Northern Black Hills-Central Black Hills-Southern Black Hills-
Fall River County Area-Northern Foot Hills-Eastern Foot Hills-
Custer County Plains-Pine Ridge Area-Butte County Area-Perkins
County-West Central Plains-Ziebach County-Haakon County Area-
Badlands Area-Bennett County Area-Northern Campbell-Southern
Campbell-Crook County Plains-Weston County Plains-Wyoming Black
Hills-
937 AM MDT Fri Jul 24 2026
...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO MIDNIGHT MDT
SATURDAY NIGHT...
The National Weather Service in Rapid City SD has issued a Red Flag
Warning.
* AFFECTED AREA...Fire Weather Zones 314, 315, 316, 317, 318, 319,
320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332,
and 333.
* TIMING...From noon Saturday to midnight MDT Saturday Night.
* LIGHTNING...Frequent dry lightning is possible with thunderstorms.
* OUTFLOW WINDS...Gusty and erratic winds are possible in and near
any thunderstorms.
* THUNDERSTORMS...Thunderstorms with little to no rain, gusty and
erratic winds, and frequent lightning are possible.
* IMPACTS...Any fires that develop will spread rapidly. Outdoor
burning is not recommended.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Red Flag Warning means that critical fire weather conditions are
expected. A combination of gusty winds, low relative humidity, and
dry lightning can contribute to extreme fire behavior.
&&
$$
JC
Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Rapid City SD
1131 AM MDT Fri Jul 24 2026
SDZ001-002-012>014-025>027-030>032-041>044-046-047-049-072>078-
WYZ060-250845-
/O.CON.KUNR.HT.Y.0002.260725T1800Z-260727T0200Z/
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-Northeastern Crook-
Including the cities of Oral, Spearfish, Elm Springs, Norris, Colony,
Buffalo, Winner, Rapid City, White Owl, Pine Ridge, Edgemont, Black
Hawk, Shadehill, Redig, Ludlow, Kyle, Saint Francis, Philip, Long
Valley, Dupree, Martin, Cedar Butte, Sturgis, Wounded Knee, Prairie
City, Wall, Scenic, Summerset, Hermosa, South Eagle Butte, Angostura
Reservoir, Parmelee, Batesland, Caputa, Tilford, Vale, Ladner,
Fruitdale, Glad Valley, Colome, Belvidere, Allen, Zeona, Midland,
Smithwick, Bison, Box Elder, Sharps Corner, Hot Springs, Interior,
Aladdin, Whitewood, Manderson, New Underwood, Provo, Howes, Kadoka,
Rumford, Reva, Camp Crook, Saint Onge, Mission, Quinn, Porcupine,
Belle Fourche Reservoir, Opal, Red Owl, Buffalo Gap, Tuthill,
Ardmore, Rockyford, Hamill, Rosebud, Cherry Creek, Belle Fourche,
Oelrichs, Milesville, Newell, Meadow, Fairburn, Mud Butte, Ellsworth
AFB, Faith, Wood, Usta, Enning, Lemmon, Harrington, Cottonwood,
Potato Creek, Piedmont, Union Center, Witten, White River, Wasta,
Hoover, Folsom, Sorum, Beulah, Wanblee, Ideal, and Oglala
1131 AM MDT Fri Jul 24 2026 /1231 PM CDT Fri Jul 24 2026/
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON MDT /1 PM CDT/ SATURDAY
TO 8 PM MDT /9 PM CDT/ SUNDAY...
* WHAT...Heat index values up to 105 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/
Sunday.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
JC
URGENT - WEATHER MESSAGE
National Weather Service Rapid City SD
1131 AM MDT Fri Jul 24 2026
WYZ054>056-058-059-250845-
/O.EXT.KUNR.HT.Y.0002.260725T1800Z-260727T0200Z/
Northern Campbell-Southern Campbell-Western Crook-Weston County
Plains-Newcastle-
Including the cities of Recluse, Upton, Hulett, Gillette, Rochelle,
Devils Tower, Newcastle, Moorcroft, Pine Haven, Clareton, Weston,
Wright, Rozet, Keyhole Reservoir, and Osage
1131 AM MDT Fri Jul 24 2026
...HEAT ADVISORY NOW IN EFFECT FROM NOON SATURDAY TO 8 PM MDT
SUNDAY...
* WHAT...Heat index values to around 100 expected.
* WHERE...Newcastle, Northern Campbell, Southern Campbell, Western
Crook, and Weston County Plains.
* WHEN...From noon Saturday to 8 PM MDT Sunday.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
1126 AM MDT Fri Jul 24 2026
WYZ003>006-010-011-017-018-020-251800-
/O.NEW.KRIW.HT.Y.0001.260725T1800Z-260727T0300Z/
Cody Foothills-North Bighorn Basin-Southwest Bighorn Basin-
Southeast Bighorn Basin-Northeast Johnson County-Southeast
Johnson County-Wind River Basin-Lander Foothills-Natrona County
Lower Elevations-
Including the cities of Lovell, Lander, Worland, Thermopolis,
Shoshoni, Ten Sleep, Buffalo, Clark, Basin, Riverton, Cody, Greybull,
Shell, Kaycee, Meeteetse, Powell, and Casper
1126 AM MDT Fri Jul 24 2026
...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 9 PM MDT SUNDAY...
* WHAT...Very hot conditions with high temperatures from 95 to 102
degrees.
* WHERE...Lower elevations of central and north-central Wyoming, east
of the continental divide.
* WHEN...From noon Saturday to 9 PM MDT Sunday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or late evening. Take action when you see symptoms of heat exhaustion
and heat stroke.
&&
$$
McDonald
URGENT - WEATHER MESSAGE
National Weather Service Denver CO
251 AM MDT Fri Jul 24 2026
COZ038>040-043-250300-
/O.NEW.KBOU.HT.Y.0003.260725T1700Z-260726T0300Z/
/O.NEW.KBOU.HT.Y.0004.260726T1700Z-260727T0300Z/
Larimer County Below 6000 Feet/Northwest Weld County-Boulder And
Jefferson Counties Below 6000 Feet/West Broomfield County-North
Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County-Central and South Weld County-
Including the cities of Arvada, Fort Lupton, Denver International
Airport, Highlands Ranch, Nunn, City of Denver, Fort Collins, Parker,
Lakewood, Hereford, Loveland, Eaton, Brighton, Golden, Boulder,
Longmont, Greeley, Littleton, Roggen, and Aurora
251 AM MDT Fri Jul 24 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM TO 9 PM MDT SATURDAY...
...HEAT ADVISORY IN EFFECT FROM 11 AM TO 9 PM MDT SUNDAY...
* WHAT...Temperatures from 99 to 103.
* WHERE...Fort Collins, Boulder and the western suburbs of Denver,
Denver, and Greeley.
* WHEN...From 11 AM to 9 PM MDT both Saturday and Sunday.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
For more information from the National Weather Service, visit
https://weather.gov/bou
63
URGENT - WEATHER MESSAGE
National Weather Service Billings MT
128 AM MDT Fri Jul 24 2026
MTZ040-056-063>066-141-172-228-250730-
/O.CON.KBYZ.HT.Y.0001.260724T1500Z-260727T0300Z/
Northern Park-Red Lodge Foothills-Judith Gap-Paradise Valley-
Livingston Area-Beartooth Foothills-Northern Sweet Grass-Melville
Foothills-Southern Wheatland-
Including the locations of Limestone, Mc Leod, Harlowton, Judith Gap,
Big Timber, Dean, Fishtail, Pine Creek, Nye, Melville, Pray, Red
Lodge, Clyde Park, Livingston, Miner, Corwin Springs, Emigrant, and
Chico
128 AM MDT Fri Jul 24 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM MDT
SUNDAY...
* WHAT...Hot conditions with high temperatures of 90 to 100. Saturday
is expected to be the hottest day.
* WHERE...Portions of central and south central Montana.
* WHEN...From 9 AM this morning to 9 PM MDT Sunday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Hot daytime temperatures combined with warm
overnight low temperatures will produce cumulative heat stress.
This heat stress will become dangerous to anyone without adequate
cooling and hydration.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
Additional graphics for this hazard can be found at
http://www.weather.gov/billings
Palmquist
URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
105 AM MDT Fri Jul 24 2026
NEZ003-019>021-054-055-096-WYZ101-102-107-108-250015-
/O.NEW.KCYS.HT.Y.0003.260725T1700Z-260728T0300Z/
Box Butte County-Scotts Bluff County-Banner County-Morrill County-
Kimball County-Cheyenne County-Southern Sioux County-Converse
County Lower Elevations-Niobrara County-East Platte County-Goshen
County-
Including the cities of Alliance, Harrisburg, Bill, Scottsbluff,
Sidney, Bayard, Torrington, Angora, Brownson, Lusk, Guernsey,
Douglas, Gering, Redbird, Kimball, Deer Creek, Wheatland,
Bridgeport, Glenrock, Hemingford, Agate, and Redington
105 AM MDT Fri Jul 24 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM SATURDAY TO 9 PM MDT MONDAY...
* WHAT...Afternoon high temperatures between 100 and 106 degrees.
Overnight low temperatures in the mid 60s to around 70 degrees.
* WHERE...Portions of panhandle Nebraska and east central and
southeast Wyoming.
* WHEN...From 11 AM Saturday to 9 PM MDT Monday.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside. Drink plenty of fluids and wear
lightweight and loose fitting clothing. Try to limit strenuous
activities to early morning or evening. Take action when you see
symptoms of heat exhaustion and heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
105 AM MDT Fri Jul 24 2026
NEZ002-095-250015-
/O.NEW.KCYS.HT.Y.0003.260725T1700Z-260728T0300Z/
Dawes County-Northern Sioux County-
Including the cities of Chadron St Park, Harrison, and Chadron
105 AM MDT Fri Jul 24 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM SATURDAY TO 9 PM MDT MONDAY...
* WHAT...Afternoon high temperatures between 102 and 110 degrees.
Overnight low temperatures between 68 and 78 degrees.
* WHERE...Dawes County and Northern Sioux County.
* WHEN...From 11 AM Saturday to 9 PM MDT Monday.
* IMPACTS...Hot daytime temperatures and warm overnight lows may
cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside. Drink plenty of fluids and wear
lightweight and loose fitting clothing. Try to limit strenuous
activities to early morning or evening. Take action when you see
symptoms of heat exhaustion and heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
105 AM MDT Fri Jul 24 2026
WYZ118-119-250015-
/O.NEW.KCYS.HT.Y.0003.260725T1700Z-260728T0300Z/
Central Laramie County-East Laramie County-
Including the cities of Cheyenne and Pine Bluffs
105 AM MDT Fri Jul 24 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM SATURDAY TO 9 PM MDT MONDAY...
* WHAT...Afternoon high temperatures between 95 and 99 degrees.
Overnight low temperatures in the mid 60s.
* WHERE...Central Laramie County and East Laramie County.
* WHEN...From 11 AM Saturday to 9 PM MDT Monday.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside. Drink plenty of fluids and wear
lightweight and loose fitting clothing. Try to limit strenuous
activities to early morning or evening. Take action when you see
symptoms of heat exhaustion and heat stroke.
&&
$$
MN
URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
1233 AM MDT Fri Jul 24 2026
IDZ051>057-242200-
/O.CON.KPIH.HT.Y.0003.260724T1900Z-260725T0300Z/
Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-Eastern Magic Valley-Southern
Hills/Albion Mountains-Raft River Region-
Including the cities of Almo, Craters of the Moon NM, INL, Fort
Hall, St. Anthony, Richfield, American Falls, Burley, Albion,
Rexburg, Idaho Falls, Blackfoot, Heyburn, Carey, Mud Lake, Oakley,
Rockland, Pocatello, Rupert, Shelley, Malta, Holbrook, and Shoshone
1233 AM MDT Fri Jul 24 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM
MDT THIS EVENING...
* WHAT...Temperatures 95 to 100 degrees expected across valley
locations within the advised areas.
* WHERE...Eastern Magic Valley, Shoshone/Lava Beds, Arco/Mud Lake
Desert, Lower Snake River Plain, Raft River Region, Southern
Hills/Albion Mountains, and Upper Snake River Plain.
* WHEN...From 1 PM this afternoon to 9 PM MDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
Visit weather.gov/pocatello for more information.
Cropp
Fire Weather Watch
URGENT - FIRE WEATHER MESSAGE
National Weather Service Billings MT
122 AM MDT Fri Jul 24 2026
MTZ123>133-WYZ274-284-250730-
/O.CON.KBYZ.FW.A.0003.260725T1800Z-260726T0600Z/
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/Bighorn 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-
Bighorn National Forest-
122 AM MDT Fri Jul 24 2026
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SATURDAY EVENING...
* 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible Red
Flag Warnings.
&&
$$
http://weather.gov/Billings
Air Quality Alert
COC005-059-031-014-001-123-013-069-035-242200-
Arapahoe-Jefferson-Denver-Broomfield-Adams-Weld-Boulder-
Larimer-Douglas-
410 PM MDT Thu Jul 23 2026
...OZONE ACTION DAY ALERT FROM 400 PM THURSDAY UNTIL 400 PM
FRIDAY...
The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Ozone Action Day Alert.
WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties
WHEN...400 PM Thursday July 23 to 400 PM Friday July 24
IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Ozone will remain in the Good to Moderate
range on Thursday. On Friday, hot and sunny weather will allow
Ozone to reach the Unhealthy for Sensitive Groups category. For
Colorado air quality conditions, forecasts, and advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx If
possible, please help us reduce ozone pollution by limiting
driving gas and diesel-powered vehicles until at least 4 p.m.
Friday, July 24, 2026. Colorado is also addressing ozone pollution
through state policies. For more information about health impacts
and how ozone pollution forms in Colorado, visit:
https://cdphe.colorado.gov/ozone- pollution-and-your-health
HEALTH INFORMATION...Increasing likelihood of respiratory symptoms
and breathing discomfort in active children and adults and people
with lung disease, such as asthma. Active children and adults, and
people with lung disease, such as asthma, should reduce prolonged
or heavy outdoor exertion.
$$
