| NWS Forecast for: Stony Brook NY Issued by: National Weather Service New York, NY Last Update: 10:29 am EDT Jul 18, 2026 | |
Today: Showers and possibly a thunderstorm. Areas of smoke. Steady temperature around 77. South wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible. Tonight: Showers and possibly a thunderstorm before 11pm, then a chance of showers and thunderstorms between 11pm and 2am. Low around 71. Southwest wind 11 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible. Sunday: Sunny, with a high near 82. Northwest wind around 11 mph. Sunday Night: Mostly clear, with a low around 65. North wind around 7 mph. Monday: Sunny, with a high near 81. Light and variable wind becoming south around 6 mph in the afternoon. Monday Night: Partly cloudy, with a low around 68. Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%. Tuesday Night: Showers and possibly a thunderstorm. Low around 71. Chance of precipitation is 90%. Wednesday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%. Wednesday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 67. Thursday: Mostly sunny, with a high near 84. Thursday Night: Partly cloudy, with a low around 66. Friday: Mostly sunny, with a high near 83. | |
| Stony Brook NY 40.92°N 73.12°W (Elev. 112 ft) | |
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