Active AlertsMerced - Madera - Mendota

What: High temperatures up to 103 degrees expected.
Where: San Joaquin Valley and Sierra Foothills.
When: From 11 AM Saturday to 11 PM PDT Tuesday.
Impacts: Hot temperatures may cause heat illnesses.
Additional Details: Moderate to major risk of heat-related illnesses for much of the population, especially those without effective cooling or hydration.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.