Extreme Heat and Excessive Rainfall This Week

A significant heat wave continues for the Rockies, Northern Plains, and Great Lakes into the Mid-Atlantic, peaking in intensity through midweek and lingering across parts of the Northern Plains and Midwest until this weekend. Excessive rainfall my bring life-threatening and locally catastrophic flash and urban flooding across portions of southwestern Texas through early Friday. Read More >

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Last Map Update: Wed, Jul 15, 2026 at 9:06:14 am PDT

Watches, Warnings & Advisories

National Weather Service San Francisco Bay Area, CA

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National Weather Service Los Angeles, CA

Extreme Heat Warning

Gale Warning

Red Flag Warning

Heat Advisory

Small Craft Advisory

Beach Hazards Statement

Heat Wave this Week

Moderate Heat Risk this Week

Chance of Thunderstorms this Week

Elevated Fire Danger

Dry and Windy

A Heat Advisory is in effect from Tuesday through Thursday and Hot and Humid conditions exist across the San Joaquin Valley. Will expect the Heat Risk to start at Moderate Levels and rise to Major levels during the Mid-week event. High temperatures during this time will range from 102 to 108 degrees and overnight low stay in the mid to upper 70s. Stay indoors in Air Conditioning when possible, and drink water to stay hydrated.

Sunday, July 12, 2026 @ 3:50 AM PDT - High pressure over California will continue to bring above average temperatures this week. Triple digit heat persists over much of the lower elevations. Reduce time outside and take steps to reduce risk of heat illness if outdoors!

Showers and thunderstorms arrived into central California with a 30-40 percent chance of thunderstorms along the Sierra Nevada crest today. The chances decrease during the remainder of the week but will continue to exist across the Sierra Nevada and portions of the Kern County desert. We also cannot rule out sprinkles or light showers in the San Joaquin Valley this Evening. A slight chance of thunderstorms returns to the Mojave Desert this Weekend.

A Moderate Risk for Elevated Fire Danger will exist across portions of Central California. In particular, the Coastal Range (West Hills) and a large part of the San Joaquin Valley, all north of Kern County. These areas will observe strong wind gusts in the range of 20 to 30 mph and relative humidity down to 15 to 25 percent. These conditions will allow for elevated fire danger as the dry grasses will experience enhanced ignition potential during the Wednesday and Thursday time frame.

A disturbance passing through the Pacific Northwest around Mid-week will generate strong winds over portions of Central California. These strong winds, accompanied by dry conditions (low relative humidity), will produce elevated dry danger conditions across Central California. Along with dry grasses, fire starts will have a high potential during the mid-week period.