Heat Persists in the South Central U.S. and California; Heavy Rain in the Ohio Valley

Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley, as well as in the Southwest and California this week with limited nighttime relief. Heavy rainfall will lead to localized areas of flash flooding in parts of the Ohio Valley/Central Appalachians. Dry and breezy conditions will enhance fire weather concerns across the northern Rockies and High Plains. Read More >

Click a location below for detailed forecast.

Last Map Update: Wed, Sep 9, 2026 at 5:26:29 pm PDT

Watches, Warnings & Advisories

National Weather Service San Francisco Bay Area, CA

Zoom Out

National Weather Service Los Angeles, CA

Extreme Heat Warning

Heat Advisory

Coastal Flood Advisory

Small Craft Advisory

Thursday HeatRisk Probabilities

Wednesday Sierra Nevada Thunderstorms

A possible final hurrah from the summer heat brings widespread Moderate HeatRisk and areas of Major Heat Risk to Central California on Thursday. Valley temperatures up to 102 degrees with highs up to 75 degrees are expected, the warmest of these in urban areas and in the foothills where the thermal belt is strongest.

There is a 10-15% probability of thunderstorms in the Sierra Nevadas of Fresno and Tulare County on Wednesday afternoon. Any thunderstorms that develop have the potential to produce heavy rain alongside cloud-to-ground lightning, small hail, and strong gusts. Check weather.gov/hanford for the latest forecasts and warnings.

Text Product Selector (Selected product opens in current window)

Heat Persists in the South Central U.S. and California; Heavy Rain in the Ohio Valley

NWS Forecast Office Hanford, CA