Extreme Heat and Excessive Rainfall This Week

A significant heat wave is underway for the Intermountain West, Northern Plains, and Upper Great Lakes, peaking in intensity through midweek and lingering across parts of the Northern Plains and Midwest until this weekend. In southwest Texas, excessive rainfall may bring a risk for potentially life-threatening flash and arroyo flooding through Thursday. Read More >

Click a location below for detailed forecast.

Last Map Update: Tue, Jul 14, 2026 at 7:52:40 am PDT

Watches, Warnings & Advisories

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National Weather Service San Francisco Bay Area, CA

National Weather Service San Joaquin Valley, CA

Red Flag Warning

Heat Advisory

Coastal Flood Advisory

Small Craft Advisory

Elevated Fire Weather Conditions

Thunderstorm Potential Today

Wildfires Due to Lightning

Moderate HeatRisk

Heat Safety

Elevated fire weather conditions due to isolated mountain thunderstorm chances today. Thunderstorms may be a wet/dry mix. Potential for new lightning starts and gusty outflow winds.

Isolated to scattered thunderstorms are possible today over the mountains, and portions of the foothills and northern Sacramento Valley. Thunderstorms that develop will be capable of lightning, brief heavy rain, and gusty outflow winds.

Wildfires due to lightning. Lightning safety: if you hear thunder or see lightning, take shelter indoors. Wildfire safety: if you see a wildfire, you should walk or drive away from it immediately and call 911. Know what to do: always have an emergency plan for if a fire starts near you. Wildfire evacuation: leave as soon as evacuation is recommended by officials, locate your pets, & ensure your emergency kit is in your vehicle. Prevent other wildfires: fire safety precautions should be exercised to prevent additional fires. Visit readyforwildfire.org for additional safety information

Warmer, above-normal temperatures will lead to Moderate HeatRisk throughout the Valley and foothills thru Wednesday. Stay hydrated, protect your skin, look before you lock, beware of cold waterways.

Heat Safety: Look before you lock- don’t leave kids or pets unattended in vehicles. Don’t forget to check on pets, if the ground is too hot for your feet it’s too hot for their paws. Drink plenty of water. Wear light colored clothing. Find shade and cool off. For more information on heat safety visit weather.gov/heat