Heat Advisory

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 748 PM PDT Sat Oct 3 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT SUNDAY... * WHAT...Hot conditions with maximum temperatures in the low-80s to low-90s. Mild minimum temperatures and weak onshore flow will limit overnight relief. * WHERE...The Marin Hills, Northern Monterey Bay, San Francisco, and Northern Salinas Valley/Hollister Valley and Carmel Valley. * WHEN...Until 10 PM PDT Sunday. * IMPACTS...This level of heat affects anyone without effective cooling and/or adequate hydration. Impacts likely in some health systems, heat-sensitive industries and infrastructure. PRECAUTIONARY/PREPAREDNESS ACTIONS... Hydration is a critical piece to surviving the heat. Drink water, and if possible, take water to those who are vulnerable. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or evening. Take action when you experience symptoms of heat exhaustion and/or heat stroke. Beat the heat and check the backseat! Do not leave young children or pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.