Active Weather Alerts
Extreme Heat Watch
Issued: 7:41 PM Aug. 18, 2025 – National Weather Service
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... * WHAT...Dangerously hot conditions with high temperatures of 99 to 105 degrees, locally up to 107 degrees, possible and overnight low temperatures in the low to mid-70s. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...From Thursday morning through Friday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Above average temperatures overnight will limit overnight relief from the heat. Widespread moderate to locally major HeatRisk. 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. &&
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