Extreme Heat Warning Issued for Coachella Valley and San Diego Deserts
This alert is no longer in effect.
NOAA issued it on September 9, 2026, 2 weeks 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 10 AM Wednesday through 8 PM PDT Friday for Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning.
The weather record, at a glance
- Record type
- Extreme Heat Warning
- Affected area
- Southern California
- Issued
- September 9, 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 2 weeks ago; use the issuing agency's live warning service for current conditions in Southern California.
Alert Details
An Extreme Heat Warning has been issued by the National Weather Service San Diego CA. The alert was sent at 2:58 AM PDT on September 9, 2026, and remains in effect.
Affected Areas
The warning covers Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning.
What You Should Do
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 expected with high temperatures of 110 to 114. Low temperatures in the 80s are forecast. Areas of Major HeatRisk are noted, with very warm overnight temperatures limiting relief from the heat. Heat-related illnesses increase significantly during extreme heat events.
Timeline
The warning is effective from 10 AM PDT September 9, 2026, through 8 PM PDT September 11, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Beyond this NWS weather alert's own category, Areazine surfaces two nationwide peer sets: length-matched and severity/date-matched notices from elsewhere in the archive, distinct from the same-feed Related list above.
Similar body length
Nearest notices by article body length (872 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 9, 2026.
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