Extreme Heat Warning — Update
NWS San Diego CA
Archived copy, taken Sat, Aug 29, 2026, 6:00 AM PDT. Read this alert at the National Weather Service →
Extreme Heat Warning issued August 29 at 5:20AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA
- Issued
- Sat, Aug 29, 2026, 5:20 AM PDT
- Effective
- Sat, Aug 29, 2026, 5:20 AM PDT
- Ends
- Sat, Aug 29, 2026, 8:00 PM PDT
- Severity
- Severe
- Urgency
- Expected
- Certainty
- Likely
- Status
- Actual
- Message type
- Update
AreaSan Bernardino and Riverside County Valleys-The Inland Empire
- WHAT...Dangerously hot conditions with temperatures 96 to 103.
- WHERE...San Bernardino and Riverside County Valleys-The Inland Empire.
- WHEN...Until 8 PM PDT this evening.
- IMPACTS...Heat related illnesses increase significantly during extreme heat events.
What the Weather Service says to do
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.