Warm and dry today; building humidity before midweek rain

It will be a bit more humid today with highs near 87°, and even more humid by tomorrow with an isolated shower tomorrow and more scattered showers expected Thursday.

Matt Hammer

Aug 12, 2025, 10:15 AM

Updated 4 hr ago

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Another warm to hot and dry day ahead, but humidity continues to build this week with spotty showers Wednesday/Thursday. Best chance will be Thursday.
TROPICS: Tropical Storm Erin is still well out to the east in the Atlantic Ocean and expected to become a major hurricane into this weekend. This storm does not currently pose a local threat, other than potentially dangerous surf next week, to Long Island. That said, the News 12 Storm Watch Team will monitor the track for you through next week.
PEAK OF THE PERSEID METEOR SHOWER: Best viewing over the next few days will be tonight with a partly cloudy sky. More clouds are now expected tomorrow night.
Expect another nice looking day across Long Island with borderline unhealthy air quality for those with respiratory or heart-related health conditions. That is why there is now an air quality alert for Nassau and Suffolk Counties until 11 p.m. Afternoon humidity today will be manageable, but more noticeable than yesterday. It will feel hot for most of Long Island with highs in the mid to upper 80s. It will be a bit cooler at south shore beaches and across the east end of Long Island.
The weather pattern shifts midweek as moisture builds and shower chances return. Wednesday will feature more clouds mixing with sun and more humidity, with a chance for a few spotty afternoon and evening showers. Much of the day will end up dry. The best chance for scattered rain will be on Thursday, but it still is not expected to be a complete washout.
By Friday, cooler and drier air arrives, setting up a beautiful and comfortable weekend again with highs in the low-to-mid 80s and fairly low humidity.
10 DAY FORECAST
Today: Mostly sunny, warm to hot, and noticeable humidity levels. High: 87°F. BOATERS: No advisories. SWIMMERS: Moderate rip current risk. UV Index: 8 (very high).
Tonight: Partly cloudy, muggy. Low: 69°F.
Wednesday: Partly sunny, turning more humid. Chance for a few spotty showers. High: 86°F.
Wednesday night: Mostly cloudy. Muggy. Low: 72°F.
Thursday: Partly sunny with scattered showers. High: 87°F.
Thursday night: Partly cloudy, turning less humid. Low: 69°F.
Friday: Mostly sunny, pleasant. High: 86°F.
Friday night: Mostly clear, comfortable. Low: 68°F.
Saturday: Mostly sunny, comfortable. High: 85°F.
Saturday night: Partly cloudy, comfortable. Low: 69°F.
Sunday: Partly sunny, warm and humid. Slight chance for a late-day shower. High: 87°F.
Sunday night: Mostly cloudy with a shower possible. Humid. Low: 72°F.
Monday: Partly sunny with a few scattered showers. High: 87°F.
Monday night: Partly cloudy, comfortable. Low: 67°F.