Clear Skies and Cool Nights: NYC’s Detailed Weather Forecast for June 18, 2025

Explore what New York City's weather holds for you tonight and in the days to come. Get the scoop on temperatures, rain forecasts, and more.
Tonight’s NYC weather offers mostly clear skies and calm winds, with a gentle shift expected later in the evening. Don’t forget to plan accordingly for a mild night ahead!
New York City enjoys a break from the rain this evening with partly cloudy skies and steady temperatures. As we look ahead, the forecast predicts dynamic changes, including potential thunderstorms. Stay informed with our complete 7-day predictions on temperature swings and storm timings to plan your week smartly.
A line of rain showers is currently sweeping across northern New England, impacting areas such as Portland and Boston with moderate rainfall. Scattered showers are noted in central Pennsylvania, moving slowly eastward. In western Pennsylvania, near Pittsburgh, there are isolated thunderstorms that could intensify as they track northeast. New York City remains under partly cloudy skies, offering a break from precipitation, while areas around Scranton are seeing light rain showers.
Temperatures in New York City this evening will remain steady, starting at 73 degrees at 9 p.m. and only slightly dropping to 72 degrees by 1 a.m. The winds will shift from calm to a gentle breeze, moving west at 3 miles per hour, progressing to west-southwest at 4 miles per hour by midnight.
Tonight, Buffalo will see a low of 60 degrees, while Syracuse cools down to 59. In Pennsylvania, Scranton is expected to drop to 59 degrees, with Pittsburgh slightly higher at 61. New York City will experience a mild night with a low of 68 degrees, and Philadelphia is forecasted to touch 66 degrees.
Tomorrow Boston will also see warm conditions at 91 degrees, while Portland will be slightly cooler at 75 degrees. Buffalo will have a pleasant high of 72 degrees, and Syracuse is set to hit 83 degrees.
A dynamic weather pattern unfolds in the Northeast tomorrow with a front pushing through the region. Expect thunderstorms, especially from Scranton to Albany, through Wednesday, with some storms potentially severe in the afternoon. Rainfall will be heaviest across western New York, bringing the risk of localized flooding through Wednesday evening. On Thursday, drier and cooler air will settle in, offering some relief and clearer skies.
The UV index in New York City will be moderate on Wednesday, with a value of 4, indicating a burn time of about 35 minutes in direct sunlight. By Thursday, the UV index rises significantly to 9, reducing the burn time to just 15 minutes.
For the 7-day forecast in New York City: Wednesday: High of 78 degrees with clouds early, clearing late. Low of 70 degrees. Thursday: Warmer at 89 degrees, clouds early with skies clearing later. Low of 67 degrees. Friday: Mostly clear and comfortable, peaking at 85 degrees. Overnight, temperatures fall to 70 degrees. Saturday: Expect partly cloudy conditions with a daytime high of 88 degrees and a night low of 74 degrees. Sunday: Mostly clear skies, topping out at 90 degrees. Evening lows around 78 degrees. Monday: Sunny and clear with highs reaching 96 degrees. Nighttime temperatures settle to 80 degrees. Tuesday: Clear and hot, with a peak of 98 degrees. The low will be 80 degrees.
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