Idaho, Washington Moderate Heat Advisory | Effective 07/21/2026 22:05

Headline: 
Heat Advisory issued July 21 at 10:05PM PDT until July 23 at 9:00PM PDT by NWS Spokane WA
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
July 21, 2026 - 10:05pm
Expires: 
July 22, 2026 - 12:00pm
Description: 
* WHAT...Hot temperatures with daytime highs in the mid 90s to low 100s Wednesday and Thursday. This will pose a moderate to major risk of heat-related illness. * WHERE...Portions of North and North Central Idaho and Central, East Central, North Central, Northeast, and Southeast Washington. * WHEN...Until 9 PM PDT Thursday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Wednesday will likely be the hottest day with widespread moderate and major HeatRisk. Limited overnight relief expected across the lower elevations Wednesday and Thursday mornings with low temperatures in the mid 60s to mid 70s.
Instruction: 
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.
Area Description: 
Northern Panhandle; Coeur d'Alene Area; Lewiston Area; Lewis and Southern Nez Perce Counties; Northeast Blue Mountains; Lower Garfield and Asotin Counties; Washington Palouse; Moses Lake Area; Upper Columbia Basin; Spokane Area; Northeast Mountains; Okanogan Highlands; Wenatchee Area; Okanogan Valley; Waterville Plateau; Central Chelan County; Western Chelan County; Western Okanogan County
Forcast Office: 
NWS Spokane WA
Sender: 
w-nws.webmaster@noaa.gov