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Thunderstorms are over, but scattered showers linger into Thursday on Long Island

The weather is improving on Long Island following damaging thunderstorms Wednesday evening, but scattered rain showers linger.

Matt Hammer

May 20, 2026, 11:07 PM

Updated

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SCATTERED SHOWERS OVERNIGHT

The severe thunderstorm threat for Long Island is over. That said, scattered ponding of water and debris from earlier storms can continue to impact travel overnight. Please use caution traveling. There will be clouds and spotty lighter rain showers at times overnight with temperatures dropping into the upper 50s and lower 60s early Thursday morning.

COOLER WITH MORE SHOWERS THURSDAY

You will notice a big drop in temperatures for the end of the week and into Memorial Day Weekend, following the summer-like heat we had to start the week. You should keep a rain jacket and umbrella with you on Thursday, too, as clouds and showers will linger through at least mid-afternoon with high temperatures in the mid- to upper 60s. It will dry out more for Thursday evening.

MEMORIAL DAY WEEKEND

Unfortunately, the weather for the upcoming holiday weekend continues to not look good with periods of rain. The wettest day still looks to be Saturday, but scattered rain showers can still be around Sunday and Monday, with temperatures warming back up into the 70s by Monday.

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EXTENDED FORECAST

OVERNIGHT: Cloudy with scattered rain showers. Lows near the upper 50s to low 60s.

THURSDAY: Mostly cloudy with periods of rain showers through mid-afternoon. Then, mostly cloudy and drier into the evening. Much cooler, with high temperatures around 68 degrees. Lows near 51 degrees.

FRIDAY: Partly sunny to mostly cloudy. Highs around 66 degrees. Lows near 50 degrees.

SATURDAY: Cloudy with periods of light to moderate rain showers. Highs around 62 degrees. Lows near 50 degrees.

SUNDAY: Mostly cloudy with scattered rain showers possible. Highs around 65 degrees. Lows near 54 degrees.

MONDAY: MEMORIAL DAY -- Mostly cloudy with a few showers likely. Not a washout at this time. Highs around 72 degrees. Lows near 57 degrees.

TUESDAY: Partly sunny to mostly cloudy. Highs around 74 degrees. Lows near 56 degrees.

WEDNESDAY: Mostly sunny and warmer with highs around 78 degrees. Lows near 59 degrees.

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