Shasta Cascade placed under an extreme heat warning until Tuesday night

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On Monday at 9:57 a.m. an extreme heat warning was issued by the NWS Sacramento CA in effect until Tuesday at 11 p.m. The warning is for 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 and Butte County Below 1000 ft.

"Dangerously hot conditions with high temperatures up to 110 degrees and overnight low temperatures in the 70s expected with widespread Major HeatRisk," says the NWS. "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."

"Hot temperatures may cause heat illnesses, especially for those more sensitive to heat," comments the NWS.

This warning is in effect until Tuesday at 11 p.m.

Ways to stay safe in the heat according to the NWS

• Stay hydrated: Make sure to drink plenty of fluids.
• Stay in an air-conditioned room.
• Avoid direct sun exposure: Protect yourself and check on vulnerable relatives and neighbors.
• Child and pet safety: Never leave young children and pets unattended in vehicles, especially when car interiors can reach lethal temperatures within minutes.
• Exercise caution outdoors: If you work or spend time outside, take additional safety measures.
• Consider the timing: When possible reschedule strenuous activities to early morning or evening.
• Recognize early indicators: Learn to identify the warning signs of heat exhaustion and heat stroke.
• Dress for comfort: Wear lightweight and loose-fitting clothing to stay cool.

To minimize risks during outdoor work, the Occupational Safety and Health Administration (OSHA) advises incorporating frequent rest breaks in shaded or air-conditioned areas. If someone experiences heat-related symptoms, promptly relocate them to a cool and shaded spot. In case of an emergency, dial 911.

Source: The National Weather Service

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This story was originally published June 15, 2026 at 10:01 AM.