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STORM WATCH: Scattered strong storms, tornado watch for parts of Long Island

Scattered thunderstorms through this evening can be strong with damaging winds and heavy flooding rain and even a slight chance for a tornado in Nassau County.

Matt Hammer

Jul 21, 2026, 5:52 PM

Updated

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TORNADO WATCH UNTIL 9 P.M. FOR NASSAU COUNTY

While tornadoes are not a definite to happen locally, conditions are favorable for any strong to severe thunderstorm to have the capability to produce a low-end tornado with winds of at least 65 to 85 mph (EF-0). If a tornado warning is issued for your area, seek shelter immediately until the warning passes. News 12 will continue to have important updates for you through this evening.

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STRONG TO SEVERE THUNDERSTORMS POSSIBLE THROUGH THIS EVENING

It is far from a complete washout today, but scattered showers and strong storms are around Long Island. Not everyone will see severe storms, but be alert for thunder and lightning with heavy downpours. It is still warm and humid with temperatures mostly in the 70s. Some thunderstorms can have damaging winds up to 60 mph and heavy flooding rains with frequent, vivid lightning through this evening.

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EXTENDED FORECAST

TONIGHT: Scattered showers and storms end. Then, mostly cloudy overnight. Lows in the upper 60s to low 70s into Wednesday morning.

WEDNESDAY: Clouds with breaks of sun. A few showers or isolated thunderstorms are possible, mostly in the morning through mid-afternoon. Highs around 82 degrees and still humid. Lows near 64 degrees.

THURSDAY: Sunny with highs around 83 degrees. Low humidity. Lows near 66 degrees.

FRIDAY: Mostly sunny and still comfortable, with highs around 82 degrees and low humidity. Lows near 67 degrees.

SATURDAY: Mostly sunny. Highs around 83 degrees. Lows near 69 degrees.

SUNDAY: Sun and clouds. A bit more humid. Highs around 85 degrees. Lows near 68 degrees.

MONDAY: Sun and clouds. Highs around 81 degrees. Lows near 68 degrees.

TUESDAY: Mostly cloudy with scattered rain showers likely. Highs around 81 degrees. Lows near 67 degrees.

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