Heat Advisory

Locations Affected

Stockton, CA ∙ Sacramento, CA ∙ Modesto, CA ∙ Elk Grove, CA ∙ Fairfield, CA ∙ Roseville, CA ∙ Vallejo, CA ∙ Vacaville, CA ∙ Tracy, CA ∙ Chico, CA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 1243 PM PDT Fri Aug 22 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SATURDAY... * WHAT...High temperatures 95 to 107 expected. Overnight low temperatures in the mid 60s to 70s. Widespread Moderate HeatRisk with areas of Major HeatRisk. * WHERE...Carquinez Strait and Delta, Sacramento Valley, Mountains Southwestern Shasta County to Western Colusa County, Northern San Joaquin Valley, and Shasta Lake Area / Northern Shasta County. * WHEN...Until 11 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during heat events, particularly for those working or participating in outdoor activities. 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. 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.

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