# HEADLINE
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EXTREME HEAT WARNING IN EFFECT FROM 6 AM SATURDAY TO MIDNIGHT MDT MONDAY NIGHT
# DETAILS
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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.
ISSUED AT
Friday, July 10, 2026 at 12:49 AM MDT
ISSUED BY
National Weather Service Billings MT
HEADER
URGENT - WEATHER MESSAGE
# PRECAUTIONARY/PREPAREDNESS ACTIONS
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, plan outdoor activities during the early morning and late evening hours, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
# AREAS AFFECTED
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Northern Carbon, Paradise Valley, Southern Wheatland, Beartooth Foothills, Bighorn Canyon, Carter, Custer, Fallon, Golden Valley, Judith Gap, Livingston Area, Melville Foothills, Musselshell, Northeastern Yellowstone, Northern Big Horn, Northern Park, Northern Rosebud, Northern Stillwater, Northern Sweet Grass, Powder River, Red Lodge Foothills, Sheridan Foothills, Southeastern Carbon, Southern Big Horn, Southern Rosebud, Southwestern Yellowstone, Treasure
Including the locations of Roundup, Pryor, Columbus, Limestone, Broadus, Lavina, Nye, Dean, Joliet, Ryegate, Hardin, Crow Agency, Emigrant, Pine Creek, Pompeys Pillar, Harlowton, Melville, Absarokee, Fromberg, Billings, Fishtail, Miner, Sheridan, Hysham, Lodge Grass, Livingston, Clyde Park, Ekalaka, Lame Deer, Miles City, Red Lodge, Pray, Bridger, Colstrip, Custer, Corwin Springs, Mc Leod, Judith Gap, Fort Smith, Baker, Big Timber, Chico, and Forsyth