I-495 NY weather conditions near Holtsville, New York
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fog/Mist 70°F 2025-06-18T11:56:00-04:00 
This Afternoon 2025-06-18, Chance Showers and Patchy Fog. A 30 percent chance of showers and thunderstorms after 2pm. Patchy fog before 2pm. Otherwise, cloudy, with a steady temperature around 73. South wind around 7 mph.Tonight 2025-06-18, Chance Showers then Mostly Cloudy. A 30 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 67. South wind 3 to 5 mph.
Juneteenth 2025-06-19, Partly Sunny then Severe Thunderstorms. A 30 percent chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Increasing clouds, with a high near 86. Southwest wind 6 to 14 mph.
Thursday Night 2025-06-19, Severe Thunderstorms then Chance Showers. A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could be severe. Cloudy, then gradually becoming partly cloudy, with a low around 65. Southwest wind 10 to 13 mph. Chance of precipitation is 40%.
Friday 2025-06-20, Sunny. Sunny, with a high near 83. Northwest wind around 11 mph.
Friday Night 2025-06-20, Mostly Clear. Mostly clear, with a low around 65.- Saturday 2025-06-21, Sunny. Sunny, with a high near 84.
Saturday Night 2025-06-21, Mostly Cloudy. Mostly cloudy, with a low around 67.
Sunday 2025-06-22, Partly Sunny. Partly sunny, with a high near 84.
Sunday Night 2025-06-22, Partly Cloudy. Partly cloudy, with a low around 70.- Monday 2025-06-23, Sunny. Sunny, with a high near 89.
- Monday Night 2025-06-23, Mostly Clear. Mostly clear, with a low around 69.
- Tuesday 2025-06-24, Sunny. Sunny, with a high near 89.