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Los Angeles Heat Wave Forecast
Los Angeles is entering a dangerous, unusually long October heat wave beginning today, Friday, October 2, 2026. The National Weather Service has placed much of Los Angeles County under an Extreme Heat Warning from 10 a.m. today through 8 p.m. Thursday, October 8, and forecasters say very hot weather could persist into the second week of October. Weather.gov
🌡️ Los Angeles heat-wave forecast
For Downtown Los Angeles, the current NWS forecast is:
| Date | Forecast high | Overnight low |
|---|---|---|
| Fri., Oct. 2 | 95°F | 76°F |
| Sat., Oct. 3 | 99°F | 78°F |
| Sun., Oct. 4 | 99°F | 77°F |
| Mon., Oct. 5 | 98°F | 76°F |
| Tue., Oct. 6 | 98°F | 75°F |
| Wed., Oct. 7 | 98°F | 74°F |
| Thu., Oct. 8 | 97°F | — |
Saturday currently looks like the peak, although Sunday remains nearly as hot. The Los Angeles Times reports that Downtown L.A. and Pasadena could reach around 100°F, with some hotter inland communities exceeding 100°F. Los Angeles Times
Conditions vary substantially across Los Angeles County. The NWS says temperatures could reach around 90°F at the beaches and as high as 105°F in the valleys. The warning includes Downtown Los Angeles, Hollywood, Long Beach, Compton, Culver City, Pasadena, Glendale, Burbank, Santa Monica, Malibu, Torrance, Beverly Hills, the San Fernando Valley, Santa Clarita Valley and San Gabriel Valley, among other areas. National Weather Service
Why this heat wave is significant
This isn’t expected to be a typical one- or two-day hot spell. A strong area of high pressure over Southern California, combined with limited cooling winds, is helping produce the prolonged heat. Forecasters have warned that the pattern may continue toward mid-October, although confidence decreases that far out. Los Angeles Times
The warm nights are especially important. Downtown lows in the mid-to-upper 70s mean homes and neighborhoods may have limited opportunity to cool overnight. With repeated days of extreme heat, the NWS warns that the risk of heat-related illness increases significantly. National Weather Service
For residents, the NWS recommends limiting strenuous outdoor activity during the hottest part of the day, drinking plenty of water, using air conditioning or a cooling center when necessary, checking on vulnerable neighbors and relatives, and making sure pets have cool water and shade—or bringing them indoors.
