Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Plains and Mississippi Valley

A heat wave over the Southwest will intensify late week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rain are expected over portions of the Plains and Mississippi Valley tonight, which will shift to parts of the Upper Midwest and mid-Mississippi Valley Friday. Monsoonal showers and flooding persist in the Desert Southwest. Read More >

Last Update: 624 PM EDT Thu Jul 30 2026

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Philadelphia, PA Local Forecast Office

20NM SSW Atlantic City NJ

Marine Zone Forecast

Tonight

NE winds around 5 kt, becoming W around 5 kt after midnight. Seas 2 to 3 ft. Wave detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. Scattered showers early this evening, then isolated showers late this evening.

Fri

W winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. Wave detail: SE 2 ft at 7 seconds.

Fri Night

SW winds 5 to 10 kt. Seas around 2 ft. Wave detail: SE 2 ft at 8 seconds and S 1 foot at 3 seconds.

Sat

SW winds around 5 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave detail: S 2 ft at 3 seconds and SE 2 ft at 8 seconds.

Sat Night

S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: S 2 ft at 4 seconds and SE 2 ft at 8 seconds.

Sun

S winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: S 2 ft at 5 seconds and SE 2 ft at 8 seconds.

Sun Night

S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers in the evening, then showers likely with a chance of tstms after midnight.

Mon

SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of tstms. Showers likely, mainly in the morning.

Mon Night

SW winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers and tstms.

Tue

SE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers.

Tue Night

S winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers after midnight.

winds and seas higher in and near tstms.

Winds and seas higher in and near tstms.