Heat Advisory

Locations Affected

Stockton, CA ∙ Sacramento, CA ∙ Modesto, CA ∙ Elk Grove, CA ∙ Vallejo, CA ∙ Fairfield, CA ∙ Roseville, CA ∙ Chico, CA ∙ Citrus Heights, CA ∙ Redding, CA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 1212 PM PDT Wed Aug 20 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 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, Mountains Southwestern Shasta County to Western Colusa County, Shasta Lake Area / Northern Shasta County, Sacramento Valley and Northern San Joaquin Valley. * WHEN...From 11 AM Friday to 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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