On June 30, NYC anticipates a mix of partly cloudy skies and incoming thunderstorms. Get the full forecast and what this means for your day.

Welcome to your detailed weather forecast for NYC on June 30, 2025. The morning starts with partly cloudy skies at 79 degrees, escalating to a warm 87 degrees by midday. However, keep your umbrellas handy as thunderstorms from Pittsburgh may impact your schedule. Dive deeper into our full analysis on what these conditions mean for residents and visitors alike in NYC and surrounding areas. Follow our updates and stay ahead of the weather!
The radar for the Northeast shows a cluster of thunderstorms forming near Pittsburgh, moving towards the east. Light rain activity is currently over Buffalo, extending into the surrounding areas. A solitary system is also visible off the coast near New York City but remains offshore. Most of the region, including Albany, Philadelphia, and Boston, is experiencing clear conditions under high pressure with no immediate threat of precipitation.
For tomorrow morning in New York City, expect mostly cloudy skies starting at 8 AM with a temperature of 79 degrees. As the morning progresses, temperatures will rise to 83 degrees by 10 AM, accompanied by a southwest wind at 7 miles per hour. By noon, temperatures will reach 86 degrees with winds shifting to the west-southwest at 9 miles per hour.
Tomorrow, New York City is set to warm up to 87 degrees, while Boston will also bask in similar highs of 87. Philadelphia leads the pack with a steamy 88 degrees, and Scranton reaches 83. Pittsburgh enjoys a comfortable 80 degrees, and Syracuse is expected to hit 81.
A strong cold front will sweep across the Northeast throughout tomorrow, bringing showers and thunderstorms from Pittsburgh to Portland. The morning commute in New York City and Philadelphia may be dampened by scattered rain, while afternoon storms could intensify, especially from Albany to Boston, causing possible localized flooding. Behind the front, expect a drop in temperatures with cooler and drier air moving in by late afternoon. Scranton and Syracuse should brace for a gusty passage of storms with wind speeds potentially reaching damaging levels. By evening, clear skies are anticipated to take hold across the region, marking the beginning of a more tranquil weather pattern.
The UV index in New York City is high today with a level of 8, leading to a burn time of approximately 17 minutes under direct sunlight. On Tuesday, expect a slightly lower index of 7, with a burn time of about 20 minutes.
Monday: Thunderstorms likely with a high of 86 degrees and a low of 76 degrees. Tuesday: Expect late showers, with temperatures peaking at 87 degrees and dipping to 73 degrees overnight. Wednesday: Mostly clear skies, a nice day with a high of 85 degrees and a low of 72 degrees. Thursday: Clear and sunny with a high reaching 87 degrees and a night low of 68 degrees. Friday: Mostly clear again, with daytime temperatures around 83 degrees, cooling down to 68 degrees at night. Saturday: Partly cloudy skies, staying warm with a high of 84 degrees and a low of 71 degrees. Sunday: Partly cloudy continues, heating up to 88 degrees with a nighttime low of 75 degrees.