Heat Advisory

* 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.