Extreme Heat Warning Issued for Coachella Valley and San Diego County Deserts
This alert is no longer in effect.
NOAA issued it on May 15, 2026, 3 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
An Extreme Heat Warning is in effect from May 10 to May 11 for Coachella Valley, San Diego County Deserts, and San Gorgonio Pass, with temperatures expected to reach 104 to 109 degrees, posing risks of heat-related illnesses.
Read this weather record in 30 seconds
- Record type
- Extreme Heat Warning
- Affected area
- Southern California Deserts
- Issued
- May 15, 2026
- Issuing authority
- NWS San Diego CA
Heat notices are time-bound and location-specific. Confirm the current forecast and local public-health guidance before relying on this archived record.
Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in Southern California Deserts.
Extreme Heat Warning in Southern California
Alert Details
The Extreme Heat Warning has been issued by the National Weather Service (NWS) San Diego CA. It is an Extreme Heat Warning event, effective from its issuance on May 8, 2026.
Affected Areas
The warning affects Coachella Valley, San Diego County Deserts, and San Gorgonio Pass Near Banning in California.
What You Should Do
Residents should drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Expected Conditions
Dangerously hot conditions are anticipated with temperatures ranging from 104 to 109 degrees. The hottest conditions are expected on Monday, and heat-related illnesses may increase significantly.
Timeline
The warning is effective from 10 AM PDT on Sunday, May 10, 2026, and ends at 8 PM PDT on Monday, May 11, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (873 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 15, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.