Dangerous Heat to Continue through the Holiday Weekend; Severe Storms on Friday from the Plains to the Mid-Atlantic

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing across the eastern U.S. through the Independence Day holiday weekend. Peak heat indices of up to 115 degrees are possible. Isolated to scattered severe thunderstorms are possible from the northern/central Plains into the Midwest, Ohio Valley, and Mid-Atlantic Friday. Read More >

Click a location below for detailed forecast.

Last Map Update: Fri, Jul 3, 2026 at 6:44:33 am PDT

Watches, Warnings & Advisories

National Weather Service San Francisco Bay Area, CA

Zoom Out

National Weather Service Los Angeles, CA

Lake Wind Advisory

Practice Firework Safety!

Dangerous Winds At and Near San Luis Reservoir

8-14 Day Temperature Outlook

The Fourth of July falls during the driest part of the year. Grasses and brush are fully cured, and low humidity dries them out even further. Under these conditions, a single spark can grow into a fast-moving fire within minutes. Wind is the multiplier. Gusts push flames into fresh fuel and carry embers ahead of the fire, starting new spot fires downwind. 🎆 Fireworks rules vary by city, county, and agency, and many areas ban them entirely. Check with your local fire department or county authorities. 🔗 weather.gov/hanford

We have extended the Lake Wind Advisory for the San Luis Reservoir and along Highway 152 through 11 PM on July 4. Sustained winds of up to 10-15 mph and gusts up to 30 mph are expected. Gusts this high are capable of producing whitecap waves dangerous to small watercraft and are dangerous to drivers, particularly those in high-profile vehicles. Exercise caution if recreating at San Luis Reservoir or driving in the area.

Text Product Selector (Selected product opens in current window)

Dangerous Heat to Continue through the Holiday Weekend; Severe Storms on Friday from the Plains to the Mid-Atlantic

NWS Forecast Office Hanford, CA