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STORM WATCH: Isolated strong storm chance through mid-evening on Long Island

Not all of Long Island will see strong storms, but the chance remains there for a couple of gusty thunderstorms, especially in Nassau County and western Suffolk County, until around 9 p.m.

Matt Hammer

Sep 1, 2026, 3:42 PM

Updated

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FUTURECAST

Here is a look at the hour-by-hour weather conditions projected for Long Island through midweek.

EXTENDED FORECAST

TONIGHT: STORM WATCH -- Mainly cloudy with the chance for scattered showers and a few strong to severe thunderstorms through mid-evening. Not all of Long Island will get strong storms. In fact, the chance appears to be a bit more isolated at this time. That said, strong wind, downpours, frequent lightning, hail and a low risk for a tornado remain possible until that scattered storm threat ends. Use caution traveling if bad weather hits where you are. The chance for any pop-up stronger thunderstorms will diminish after 8 p.m or 9 p.m. Then, expect a mainly cloudy sky overnight with some patchy fog and spotty light rain or drizzle from time to time. Lows in the 60s into Wednesday morning. Wind: east-northeast 5 to 15 mph.

WEDNESDAY: A changeable weather day with a mostly cloudy and the chance for a couple of passing rain showers. Breaks of sun possible. Highs around the lower to middle 70s. Lows near 66 degrees.

THURSDAY: STORM WATCH -- A round of showers and thunderstorms in the morning. Then, partly sunny in the afternoon with a pop-up shower or storm chance. It will not be a washout of an afternoon, but a brief heavy drenching thunderstorm will be possible. Highs around 83 degrees. Lows near 67 degrees.

FRIDAY: Mostly sunny to partly cloudy. Highs around 82 degrees. Lows near 64 degrees.

SATURDAY: Sun and clouds. Highs around 76 degrees. Lows near 60 degrees.

SUNDAY: Sun and clouds. Highs around 75 degrees. Lows near 60 degrees.

MONDAY: LABOR DAY -- Sun and clouds. Highs around 76 degrees. Lows near 60 degrees.

TUESDAY: Sun and clouds to start. Periods of rain will be possible in the afternoon and evening. Highs around 76 degrees. Lows near 62 degrees.

BEACH AND BOATING FORECAST

Long Island Rip Currents

Take a look at the new beach and surf forecast - plus a look at the tides here

TROPICAL WEATHER UPDATES
Check out our new tropical weather page

Tropical Storm Edouard makes landfall this afternoon along the Gulf Coast.

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