Heat Advisory
Status
Event Continued Active alertStart Time
Sat 07/11/2026 02:00 PM EDTEnd Time
Mon 07/13/2026 11:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Great Falls, MT ∙ McAllister, MT ∙ Four Corners, MT ∙ Joplin, MT ∙ Boneau, MT ∙ Harlem, MT ∙ Pendroy, MT ∙ Herron, MT ∙ Turner, MT ∙ Helena Valley Northwest, MTFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Great Falls MT 1235 PM MDT Fri Jul 10 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON SATURDAY TO 9 PM MDT MONDAY... * WHAT...Hot daytime temperatures of 95 to 105 degrees, with overnight temperatures of 60 to 70 degrees expected. * WHERE...Portions of central, north central, and southwest Montana. * WHEN...From noon Saturday to 9 PM MDT Monday. * 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.
Technical Header
MTZ304>306-308>314-316-319-323>326-111200- /O.CON.KTFX.HT.Y.0002.260711T1800Z-260714T0300Z/ Eastern Toole and Liberty-Hill County-Northern Blaine County- Southern High Plains-Eastern Pondera and Eastern Teton-Western and Central Chouteau County-Bears Paw Mountains and Southern Blaine-Cascade County below 5000ft-Judith Basin County and Judith Gap-Fergus County below 4500ft-Gates of the Mountains-Helena Valley-Canyon Ferry Area-Missouri Headwaters-Madison River Valley- Gallatin Valley- Including the cities of Whitlash, Harlem, Fort Belknap, Benchland, Ennis, Pony, Harrison, Raynesford, Canyon Creek, Gallatin Gateway, Conrad, Norris, Wolf Creek, Zurich, Great Falls, Windham, Helena, Choteau, Whitehall, Bynum, Hogeland, Hilger, Joplin, Townsend, Toston, Lewistown, Galata, Moccasin, Three Forks, Chinook, Hobson, Devon, Jeffers, Pendroy, Havre, Stanford, McAllister, Willow Creek, Rocky Boy, Chester, Lothair, Floweree, Shelby, Craig, Cameron, Carter, Ledger, Geyser, Winston, Fort Benton, Brady, and Bozeman 1235 PM MDT Fri Jul 10 2026
