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WHAT: Dangerously hot conditions with high temperatures as hot as the upper 90s to 108 through Saturday and low temperatures as warm as the lower to mid 70s through Sunday expected.
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WHERE: San Bernardino and Riverside County Valleys-The Inland Empire.
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WHEN: Until 8 PM PDT Monday.
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IMPACTS: Heat related illnesses increase significantly during extreme heat events.
* WHAT...Dangerously hot conditions with high temperatures as hot as the upper 90s to 108 through Saturday and low temperatures as warm as the lower to mid 70s through Sunday expected. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 8 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Ozone is forecast to reach 159 AQI - Unhealthy on Fri 07/24/2026. Ozone is forecast to reach 179 AQI - Unhealthy on Sat 07/25/2026.
Active children and adults, and people with lung disease, such as asthma, should avoid prolonged or heavy exertion outdoors. Everyone else, especially children, should reduce prolonged or heavy exertion outdoors
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