Montana Severe Extreme Heat Warning | Effective 07/23/2026 13:05

Headline: 
Extreme Heat Warning issued July 23 at 2:05PM MDT until July 26 at 10:00PM MDT by NWS Glasgow MT
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
July 23, 2026 - 1:05pm
Expires: 
July 24, 2026 - 5:00am
Description: 
* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 106 expected. For the Lake Wind Advisory, west winds 10 to 15 mph with gusts up to 30 mph expected. * WHERE...Central and Southeast Phillips, Central and Southern Valley, Garfield, McCone, and Petroleum Counties. * WHEN...For the Extreme Heat Warning, from 10 AM Friday to 10 PM MDT Sunday. For the Lake Wind Advisory, from noon to 6 PM MDT Friday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Heat related illnesses increase significantly during extreme heat and high humidity events.
Instruction: 
Boaters on Fort Peck Lake should use extra caution since strong winds and rough waves can overturn small craft. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Area Description: 
Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone
Forcast Office: 
NWS Glasgow MT