Active Weather Alerts
Heat Advisory
Issued: 6:57 PM Aug. 18, 2026 – National Weather Service
...HEAT ADVISORY IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM PDT THURSDAY... * WHAT...Temperatures up to 105 expected. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...From 10 AM Wednesday to 8 PM PDT Thursday. * IMPACTS...Hot temperatures may cause heat illnesses. 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. &&
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