The National Weather Service (NWS) has issued a heat warning starting Friday as triple-digit heat is forecast to return to the North State.
"We're forecasting high temperatures between 95 and 106 degrees," said NWS Meteorologist Sara Purdue. "We're expecting widespread moderate heat risk with areas of major heat risk as well."
Overnight lows won’t bring much cooling.
"We've seen triple-digit temperatures as late as mid-September in the past, and so even as we head into late summer, early fall, the risk of high temperatures isn't gone completely."- Sara Purdue, NWS Meteorologist
Forecasters also warn that the hot, dry pattern may raise fire weather concerns.
There’s a 10 to 25 percent chance of Sierra thunderstorms from Friday through Monday.
While this summer has been relatively mild, high temperatures could stick around for weeks to come.
We've issued a Heat Advisory for the Delta, Valley, and Coast Range mountains and foothills that's in effect from 11 AM Friday to 11 PM Saturday. Be sure to practice heat safety! #cawx pic.twitter.com/lG7W5jeijD
— NWS Sacramento (@NWSSacramento) August 19, 2025
"We've seen triple-digit temperatures as late as mid-September in the past, and so even as we head into late summer, early fall, the risk of high temperatures isn't gone completely," Purdue said.
Residents are warned to stay hydrated during extreme heat, and to stay inside or in the shade as much as they can. Exposure to direct sun for prolonged periods can be dangerous, and Purdue said that residents should avoid outdoor activities during the heat of the day as much as possible.
