Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Click a location below for detailed forecast.

Last Map Update: Wed, Sep 9, 2026 at 3:52:38 pm PDT

Watches, Warnings & Advisories

Zoom Out

National Weather Service San Joaquin Valley, CA

National Weather Service Los Angeles, CA

Extreme Heat Warning

Heat Advisory

Coastal Flood Advisory

Small Craft Advisory

Heat Advisory: Now through Thursday

Minor Coastal Flooding

NOAA Weather Radio Test Postponed

⚠️ HEAT ADVISORY: Now through Thursday 10 PM ⚠️ A Heat Advisory has been issued for the San Francisco Bay Area and Central Coast now through Thursday. Forecast Details: Interior Highs: 90°F to 105°F Coastal Highs: Mid-70s to low-90s Overnight Lows: Mid-60s to low-70s, with higher elevations remaining elevated in the 70s to 80s, offering little overnight relief. Impacts: Heat illness risk will be elevated for anyone spending prolonged time outdoors, particularly during peak afternoon hours or while performing physical exertion. Heat Safety Tips: Drink plenty of water or sports drinks throughout the day—don't wait until you're thirsty. Take frequent breaks in air conditioning or shade. Shift outdoor activities to cooler morning or evening times. Look before you lock: Never leave people or pets inside an unattended vehicle!

Text Product Selector (Selected product opens in current window)

Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

NWS Forecast Office San Francisco, CA