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FLOOD WATCH: Tracking showers and thunderstorms which can bring heavy flooding rain

Dry periods for most of the day. Showers and thunderstorms developing towards this evening.

Rich Hoffman

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Jul 28, 2026, 8:46 AM

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A Flood Watch goes into effect at 2 p.m. today and remains in effect through 8 p.m. Wednesday as we track the potential for pockets of moderate to heavy rain with thunderstorms.

For today, expect mostly cloudy skies with some sunny breaks through the early afternoon. Scattered showers and thunderstorms begin to develop mainly after 3pm. The greatest risk for stronger storms and heavier rainfall will be from western Suffolk County through Nassau County and into New York City as we head toward this evening. High temperatures will top out in the upper-70s to lower-80s. If you're in Suffolk County, you'll likely stay dry through much of the day. Nassau County be alert for rain developing between 2 and 5pm.

Long Island Today forecast

As we head into tonight, scattered showers and thunderstorms continue, with the potential for pockets of moderate to heavy rain. Some locations could pick up an additional 1 to 2 inches of rainfall, which may lead to localized flooding, especially in poor drainage and low-lying areas. If you encounter flooded roadways, remember to turn around and don't drive through standing water. Overnight lows will settle back into the 60s.

Long Island Marine Forecast
Long Island Rip Currents
Long Island tonight forecast

Wednesday remains unsettled with mostly cloudy skies, scattered showers, and thunderstorms continuing throughout the day. Once again, some of the storms could produce pockets of moderate to heavy rain, keeping the flooding threat in place. High temperatures will reach the upper 70s to lower 80s. The unsettled pattern lingers into Thursday with more scattered showers and perhaps a thunderstorm or two, while afternoon highs remain in the upper-70s to lower-80s.

Long Island tomorrow forecast

Looking ahead to the weekend, the forecast turns much more favorable. Sunshine returns with just a few passing clouds on Friday, Saturday, and Sunday. It will be a great stretch of summer weather with comfortable highs in the upper-70s to lower-80s, giving us a welcome break after several days of wet and unsettled conditions.

Long Island 10 day forecast

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