Active AlertsCrestline, CA

What: High temperatures in the mid 80s to mid 90s below 6500 feet with low temperatures in the mid 60s to mid 70s expected.
Where: Riverside County Mountains, San Bernardino County Mountains, and San Diego County Mountains.
When: From 10 AM Wednesday to 8 PM PDT Monday.
Impacts: Hot temperatures may cause heat illnesses.
Additional Details: Widespread moderate HeatRisk, with local areas of major HeatRisk on mountain foothills. Elevated low temperatures will limit overnight relief from the heat.

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