National Weather Service Forecast for:
Stony Brook, NY
Issued by: National Weather Service New York/Upton, NY |
| Updated: 5:13 am EDT Mar 29, 2025 |
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| Stony Brook, NY
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Today
Mostly Sunny then Chance Rain Showers
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Sunday
Patchy Fog then Mostly Cloudy
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Monday
Showers And T-Storms Likely
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Tuesday
Slight Chance Showers And T-Storms then Mostly Sunny
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Wednesday
Mostly Sunny
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Thursday
Chance Rain Showers
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Friday
Chance Rain Showers
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| Hi 78 °F |
Hi 50 °F |
Hi 62 °F |
Hi 53 °F |
Hi 47 °F |
Hi 58 °F |
Hi 64 °F |
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Tonight
Slight Chance Rain Showers then Mostly Cloudy
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Sunday
Night
Rain Showers Likely
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Monday
Night
Areas Of Fog
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Tuesday
Night
Mostly Clear
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Wednesday
Night
Chance Rain Showers
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Thursday
Night
Chance Rain Showers
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Friday
Night
Chance Rain Showers
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| Lo 38 °F |
Lo 45 °F |
Lo 45 °F |
Lo 32 °F |
Lo 38 °F |
Lo 50 °F |
Lo 44 °F |
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Today
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A chance of rain showers after 4pm. Mostly sunny. High near 78, with temperatures falling to around 56 in the afternoon. West wind 13 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. |
Tonight
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A slight chance of rain showers between 10pm and midnight. Mostly cloudy, with a low around 38. East wind 8 to 13 mph. Chance of precipitation is 20%. |
Sunday
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Patchy fog before 10am. Mostly cloudy, with a high near 50. East wind around 8 mph. |
Sunday Night
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Rain showers likely and areas of fog after 8pm. Cloudy. Low around 45, with temperatures rising to around 50 overnight. Southeast wind 6 to 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible. |
Monday
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A chance of rain showers before 2pm, then showers and thunderstorms likely. Cloudy, with a high near 62. South wind 10 to 14 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
Monday Night
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Showers and thunderstorms likely before 8pm, then areas of fog and showers and thunderstorms. Mostly cloudy. Low around 45, with temperatures rising to around 50 overnight. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible. |
Tuesday
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A slight chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 53. |
Tuesday Night
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Mostly clear, with a low around 32. |
Wednesday
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Mostly sunny, with a high near 47. |
Wednesday Night
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A chance of rain showers after 8pm. Mostly cloudy, with a low around 38. Chance of precipitation is 40%. |
Thursday
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A chance of rain showers. Mostly cloudy, with a high near 58. Chance of precipitation is 40%. |
Thursday Night
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A chance of rain showers. Mostly cloudy, with a low around 50. Chance of precipitation is 40%. |
Friday
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A chance of rain showers. Mostly cloudy, with a high near 64. Chance of precipitation is 40%. |
Friday Night
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A chance of rain showers. Mostly cloudy, with a low around 44. Chance of precipitation is 30%. |