EXTREME HEAT WARNING IN EFFECT FROM 10 AM FRIDAY TO 8 PM PDT THURSDAY
Extreme Heat Warning issued October 1 at 12:29AM PDT until October 8 at 8:00PM PDT by NWS San Diego CA
Issued
Thu, Oct 1, 2026, 12:29 AM PDT
Effective
Thu, Oct 1, 2026, 12:29 AM PDT
Ends
Thu, Oct 8, 2026, 8:00 PM PDT
Severity
Severe
Urgency
Expected
Certainty
Likely
Status
Actual
Message type
Alert
AreaSan Bernardino and Riverside County Valleys-The Inland Empire
WHAT...Dangerously hot conditions with high temperatures in the upper 90s to 106 expected. Nights will be very warm with low temperatures mostly in the mid 60s to lower 70s.
WHERE...San Bernardino and Riverside County Valleys-The Inland Empire.
WHEN...From 10 AM Friday to 8 PM PDT Thursday.
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.
EXTREME HEAT WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH WEDNESDAY EVENING
Extreme Heat Watch issued September 30 at 8:47PM PDT until October 7 at 9:00PM PDT by NWS San Diego CA
Issued
Wed, Sep 30, 2026, 8:47 PM PDT
Effective
Wed, Sep 30, 2026, 8:47 PM PDT
Ends
Wed, Oct 7, 2026, 9:00 PM PDT
Severity
Severe
Urgency
Future
Certainty
Likely
Status
Actual
Message type
Update
AreaSan Diego County Coastal Areas; San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Coastal; Orange County Inland
WHAT...Dangerously hot conditions with high temperatures on the hottest days ranging from around 90 near the coast to the upper 90s to around 105 for the valleys possible. Low temperatures for coastal areas into the western valleys will warm into the lower to mid 70s during the weekend with those warm overnight temperatures continuing for next week.
WHERE...Orange County Coastal Areas, Orange County Inland Areas, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Valleys, and Santa Ana Mountains and Foothills.
WHEN...From Friday morning through Wednesday evening.
IMPACTS...Heat related illnesses increase significantly during extreme heat events.
ADDITIONAL DETAILS...A long-duration heat wave is expected to develop late this week and continue through much of next week into the following weekend with Moderate or greater HeatRisk for the coast and valleys and Major to Extreme HeatRisk for inland coastal areas into the western valleys.
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.
EXTREME HEAT WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH WEDNESDAY EVENING
Extreme Heat Watch issued September 30 at 1:41PM PDT until October 7 at 9:00PM PDT by NWS San Diego CA
Issued
Wed, Sep 30, 2026, 1:41 PM PDT
Effective
Wed, Sep 30, 2026, 1:41 PM PDT
Ends
Wed, Oct 7, 2026, 9:00 PM PDT
Severity
Severe
Urgency
Future
Certainty
Likely
Status
Actual
Message type
Update
AreaSan Diego County Coastal Areas; San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Coastal; Orange County Inland
WHAT...Dangerously hot conditions with high temperatures on the hottest days ranging from around 90 near the coast to the upper 90s to upper 100s for the valleys possible. Low temperatures for coastal areas into the western valleys will warm into the lower to mid 70s during the weekend with those warm overnight temperatures continuing for next week.
WHERE...Orange County Coastal Areas, Orange County Inland Areas, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Valleys, and Santa Ana Mountains and Foothills.
WHEN...From Friday morning through Wednesday evening.
IMPACTS...Heat related illnesses increase significantly during extreme heat events.
ADDITIONAL DETAILS...A long-duration heat wave is expected to develop late this week and continue through much of next week into the following weekend with Moderate or greater HeatRisk for the coast and valleys and Major to Extreme HeatRisk for inland coastal areas into the western valleys.
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.
EXTREME HEAT WATCH IN EFFECT FROM FRIDAY MORNING THROUGH WEDNESDAY EVENING
Extreme Heat Watch issued September 30 at 3:05AM PDT until October 7 at 9:00PM PDT by NWS San Diego CA
Issued
Wed, Sep 30, 2026, 3:05 AM PDT
Effective
Wed, Sep 30, 2026, 3:05 AM PDT
Ends
Wed, Oct 7, 2026, 9:00 PM PDT
Severity
Severe
Urgency
Future
Certainty
Likely
Status
Actual
Message type
Alert
AreaSan Diego County Coastal Areas; San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Coastal; Orange County Inland
WHAT...Dangerously hot conditions with high temperatures on the hottest days ranging from around 90 near the coast to the upper 90s to 108 for the valleys possible. Low temperatures for coastal areas into the western valleys will warm into the lower to mid 70s during the weekend with those warm overnight temperatures continuing for next week.
WHERE...Orange County Coastal Areas, Orange County Inland Areas, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Valleys, and Santa Ana Mountains and Foothills.
WHEN...From Friday morning through Wednesday evening.
IMPACTS...Heat related illnesses increase significantly during extreme heat events.
ADDITIONAL DETAILS...A long-duration heat wave is expected to develop late this week and continue through much of next week into the following weekend with Moderate or greater HeatRisk for the coast and valleys and Major to Extreme HeatRisk for inland coastal areas into the western valleys.
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.
A STRONG THUNDERSTORM WILL IMPACT RIVERSIDE COUNTY THROUGH 445 PM PDT
Special Weather Statement issued September 24 at 3:59PM PDT by NWS San Diego CA
Issued
Thu, Sep 24, 2026, 3:59 PM PDT
Effective
Thu, Sep 24, 2026, 3:59 PM PDT
Ends
Thu, Sep 24, 2026, 4:45 PM PDT
Severity
Moderate
Urgency
Expected
Certainty
Observed
Status
Actual
Message type
Alert
AreaSan Bernardino and Riverside County Valleys-The Inland Empire; Riverside County Mountains; San Gorgonio Pass Near Banning
At 359 PM PDT, Doppler radar was tracking a strong thunderstorm over San Jacinto, or 8 miles north of Hemet, moving northeast at 5 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects.
Locations impacted include... Moreno Valley, Hemet, San Jacinto, southeastern Beaumont, East Hemet, Juniper Springs, Homeland, Lakeview, Nuevo, Saboba Indian Reservation, and Winchester.
What the Weather Service says to do
If outdoors, consider seeking shelter inside a building.
A STRONG THUNDERSTORM WILL IMPACT RIVERSIDE COUNTY THROUGH 300 PM PDT
Special Weather Statement issued September 24 at 2:18PM PDT by NWS San Diego CA
Issued
Thu, Sep 24, 2026, 2:18 PM PDT
Effective
Thu, Sep 24, 2026, 2:18 PM PDT
Ends
Thu, Sep 24, 2026, 3:00 PM PDT
Severity
Moderate
Urgency
Expected
Certainty
Observed
Status
Actual
Message type
Alert
AreaSan Bernardino and Riverside County Valleys-The Inland Empire; Riverside County Mountains
At 217 PM PDT, Doppler radar was tracking a strong thunderstorm near Hwy 74 Between Mountain Center And Anza, or near Anza, moving east at 10 mph.
HAZARD...Wind gusts up to 50 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible.
Locations impacted include... Anza, Hwy 74 Between Mountain Center And Anza, Mountain Center, Hwy 74 Between Anza And Palm Desert, Cahuilla Indian Reservation, Lake Hemet, and Santa Rosa Mountain.
What the Weather Service says to do
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to localized flooding. Do not drive your vehicle through flooded roadways.