California Severe Extreme Heat Warning | Effective 06/16/2026 11:21

Headline: 
Extreme Heat Warning issued June 16 at 11:21AM PDT until June 16 at 11:00PM PDT by NWS Sacramento CA
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
June 16, 2026 - 11:21am
Expires: 
June 16, 2026 - 11:00pm
Description: 
* WHAT...Dangerously hot conditions with temperatures up to 105. * WHERE...Butte County Below 1000 ft, N. Sac Valley in Tehama County, Shasta County Foothills 1000-3000 ft, Shasta Lake Area & 1-5 1000-3000 ft, Shasta Metro, Sierra (Tehama-Plumas) 1000-3000 ft, Tehama Co Coast Range Above 3000 ft, W Tehama Co Foothills 1000-3000 ft, W. Shasta County 1000-3000 ft, and W. Shasta County Above 3000 ft. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses, especially for those more sensitive to heat. * ADDITIONAL DETAILS...Hot daytime temperatures will occur in other Valley locations, however Delta breeze influence will help keep temperatures cooler in the vicinity Delta and western Sacramento.
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: 
Western Shasta County Mountains Above 3000 ft; Western Shasta County Foothills Between 1000-3000 ft; Shasta Lake Area and Interstate 5 Between 1000-3000 ft; South-Central Shasta County Including Redding Metro; Eastern Shasta County Foothills Between 1000-3000 ft; Sierra Nevada of Tehama-Butte-Plumas Counties Between 1000-3000 ft; Tehama County Coast Range Above 3000 ft; Western Tehama County Foothills Between 1000-3000 ft; Northern Sacramento Valley in Tehama County; Butte County Below 1000 ft
Forcast Office: 
NWS Sacramento CA