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Patchy fog, shower overnight; steady rain chance late-week on Long Island

Mainly cloudy with patchy fog and a stray shower or occasional mist overnight, but with overall nicer weather Tuesday.

Matt Hammer

Aug 17, 2026, 9:58 PM

Updated

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OVERNIGHT

Areas of patchy fog can reduce visibility during the overnight hours into early Tuesday morning. There is a small chance for a shower or mist at times, but most of the overnight will be mainly cloudy, dry and muggy.

FUTURECAST

Here is a look at the latest future radar for Long Island.

BOAT AND BEACH

Anyone heading to the beach should check the latest rip current statements before getting in the water. Check out more of the local beach weather forecast and tides here. The rip current risk is expected to be lower, generally moderate on Tuesday.

Long Island Rip Currents

EXTENDED FORECAST

OVERNIGHT: There will be just a slight chance of showers or mist overnight. Mainly cloudy and mostly dry, with a few breaks in the clouds at times. Areas of patchy fog are also possible into Tuesday morning. Expect low temperatures in the upper 60s to low 70s. It will feel muggy. Wind: northeast-north 5 to 15 mph.

TUESDAY: A mix of clouds with a small pop-up light rain shower chance in the afternoon. Warm to hot and humid. Wind: north-southwest 5 to 15 mph. BOATERS: No advisories. Highs around the low to mid-80s. It will be around 80 at the South Shore beaches. Lows near 68.

WEDNESDAY: Mostly sunny and a touch less humid. Highs around 86. Lows near 70.

THURSDAY: WEATHER TO WATCH -- Mostly cloudy, with scattered showers and a slight chance for a thunderstorm. Highs around 83. Lows near 66.

FRIDAY: Partly sunny to mostly cloudy, with a chance for a few showers. Highs around 82. Lows near 65.

SATURDAY: Mostly cloudy, with scattered showers possible. It should not be a washout. Highs around 79. Lows near 65.

SUNDAY: Sun and clouds, with scattered showers and a thunderstorm possible. The timing of any weekend wet weather will become clearer over the next couple of days. Highs around 79. Lows near 66.

MONDAY: Sun and clouds. Highs around 79. Lows near 64.

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