34°5'N / 117°38'O / Altitud 381 m / 06:15 09/09/2026, America/Los_Angeles (UTC-7)
del: 09/09/2026, 02:58
a: 09/09/2026, 15:30
* WHAT...For the Extreme Heat Warning, dangerously hot conditions with high temperatures of 104 to 110 with low temperatures in the 70s and lower 80s expected. For the Heat Advisory, high temperatures in the upper 90s to 105 expected. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...For the Extreme Heat Warning, until 8 PM PDT this evening. For the Heat Advisory, from 8 PM this evening to 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Major HeatRisk through today. Warm overnight temperatures will limit relief from the heat.
San Bernardino,San Bernardino and Riverside County Valleys-The Inland Empire
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.
NWS San Diego CA
09/09/2026, 02:58del: 09/09/2026, 04:24
a: 09/09/2026, 15:00
* WHAT...Dangerously hot late-season conditions expected with high temperatures up to 112 to 116 in Death Valley and the Colorado River Valley; up to 105 to 110 in the Las Vegas Valley, Moapa Valley, and Pahrump Valley. * WHERE...Portions of northwest Arizona, southeast California, and southern Nevada. * WHEN...From 10 AM PDT /10 AM MST/ to 8 PM PDT /8 PM MST/ Thursday. * IMPACTS...Heat-related illnesses increase significantly during extreme heat.
San BernardinoDrink 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.
Take extra precautions when outside. Wear lightweight and
loose-fitting clothing. Try to limit strenuous activities to early
morning or evening. Take action when you see symptoms of heat
exhaustion and heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Monitor the latest forecasts and warnings for updates.NWS Las Vegas NV09/09/2026, 04:24
del: 09/09/2026, 02:58
a: 09/09/2026, 15:30
* WHAT...For the Extreme Heat Warning, dangerously hot conditions with high temperatures of 104 to 110 with low temperatures in the 70s and lower 80s expected. For the Heat Advisory, high temperatures in the upper 90s to 105 expected. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...For the Extreme Heat Warning, until 8 PM PDT this evening. For the Heat Advisory, from 8 PM this evening to 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Major HeatRisk through today. Warm overnight temperatures will limit relief from the heat.
San Bernardino,San Bernardino and Riverside County Valleys-The Inland EmpireDrink 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.NWS San Diego CA09/09/2026, 02:58