Stony Brook, NY Hourly Weather Forecast
Next 48 Hours
Mon, Sep 28th 2026
Expect scattered showers skies for the rest of the evening. Temps around 58°. Windy conditions from the N at 14.6 mph, as humidity fluctuates between 86% to 92%, and an avg barometric pressure of 29.88 inHg.
| Mon, Sep 28th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
5 PM Scattered Showers UV: 0.1 |
58°F Feels 50°F |
92% | 17.4 N | 29.83 | 56°F | 43% |
6 PM Scattered ShowersUV: 0 |
58°F Feels 50°F |
91% | 17.2 N | 29.85 | 55.4°F | 39% |
7 PM Light Rain Shower UV: 0 |
58°F Feels 50°F |
90% | 15.9 N | 29.87 | 54.8°F | 46% Rain est. 0.01in |
8 PM Scattered Showers UV: 0 |
58°F Feels 51°F |
89% | 13.6 N | 29.89 | 54.5°F | 31% |
9 PM Scattered ShowersUV: 0 |
58°F Feels 51°F |
88% | 14.1 N | 29.9 | 54°F | 29% |
10 PM Scattered ShowersUV: 0 |
58°F Feels 51°F |
87% | 13.2 N | 29.91 | 53.9°F | 29% |
11 PM Scattered ShowersUV: 0 |
58°F Feels 53°F |
86% | 11 N | 29.91 | 53.5°F | 27% |
Tue, Sep 29th 2026
Expect consistent Overcast skies throughout the day. Temps range from 58° to 68°. Light winds, shifting from N to NNW at 7 mph, as humidity ranges 70% to 87%, and an avg barometric pressure of 29.97 inHg.
| Tue, Sep 29th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Overcast UV: 0 |
58°F Feels 54°F |
84% | 8.7 N | 29.91 | 53.2°F | 24% |
1 AM Scattered ShowersUV: 0 |
58°F Feels 55°F |
83% | 7.8 NNW | 29.92 | 53°F | 25% |
2 AM Clear UV: 0 |
58°F Feels 56°F |
82% | 6 NW | 29.93 | 52.8°F | 10% |
3 AM Cloudy UV: 0 |
58°F Feels 56°F |
83% | 5.8 WNW | 29.93 | 52.8°F | 20% |
4 AM OvercastUV: 0 |
58°F Feels 56°F |
83% | 5.8 WNW | 29.93 | 53.2°F | 26% |
5 AM Scattered ShowersUV: 0 |
59°F Feels 57°F |
83% | 5.6 WNW | 29.94 | 54.1°F | 26% |
6 AM Scattered ShowersUV: 0 |
59°F Feels 57°F |
86% | 6 WNW | 29.95 | 54.9°F | 34% |
7 AM Scattered ShowersUV: 0 |
60°F Feels 57°F |
87% | 6.7 WNW | 29.96 | 55.5°F | 32% |
8 AM Scattered ShowersUV: 0.1 |
60°F Feels 58°F |
86% | 7.4 WNW | 29.97 | 55.9°F | 30% |
9 AM Overcast UV: 0.3 |
61°F Feels 59°F |
84% | 7.2 WNW | 29.98 | 55.9°F | 26% |
10 AM OvercastUV: 1 |
61°F Feels 59°F |
81% | 7.4 WNW | 29.99 | 55.5°F | 24% |
11 AM OvercastUV: 3 |
63°F Feels 60°F |
76% | 6.7 WNW | 29.99 | 55.1°F | 21% |
12 PM Partly Cloudy UV: 4.4 |
64°F Feels 63°F |
73% | 5.4 WNW | 29.99 | 55.1°F | 9% |
1 PM Partly CloudyUV: 5.2 |
65°F Feels 65°F |
72% | 3.8 W | 29.98 | 55.7°F | 10% |
2 PM Cloudy UV: 4.3 |
66°F Feels 66°F |
70% | 4.3 WNW | 29.97 | 56.4°F | 15% |
3 PM Scattered ShowersUV: 2.5 |
67°F Feels 67°F |
71% | 5.1 WNW | 29.96 | 57.4°F | 19% |
4 PM OvercastUV: 1 |
67°F Feels 66°F |
74% | 7.4 W | 29.96 | 58.4°F | 20% |
5 PM OvercastUV: 0.4 |
68°F Feels 66°F |
75% | 7.6 WNW | 29.97 | 59.3°F | 21% |
6 PM OvercastUV: 0.1 |
67°F Feels 65°F |
76% | 7.8 NW | 29.98 | 59.1°F | 22% |
7 PM OvercastUV: 0 |
66°F Feels 64°F |
78% | 7.8 NW | 29.99 | 58.9°F | 23% |
8 PM OvercastUV: 0 |
66°F Feels 64°F |
78% | 8.5 NW | 30.01 | 58.5°F | 22% |
9 PM OvercastUV: 0 |
64°F Feels 60°F |
76% | 10.3 NNW | 30.03 | 56.4°F | 21% |
10 PM Partly Cloudy UV: 0 |
63°F Feels 60°F |
76% | 9.2 NNW | 30.03 | 55.8°F | 14% |
11 PM Partly CloudyUV: 0 |
63°F Feels 60°F |
77% | 8.9 NNW | 30.03 | 55.6°F | 12% |
Wed, Sep 30th 2026
Skies will shift from Overcast conditions to Clear conditions as the day goes on. Temps range from 60° to 67°. Light winds, shifting from NNW to W at 6 mph, with humidity levels between 65% to 82%, and an avg barometric pressure of 30.07 inHg.
| Wed, Sep 30th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM ClearUV: 0 |
62°F Feels 60°F |
79% | 8.1 NNW | 30.03 | 55.6°F | 9% |
1 AM ClearUV: 0 |
61°F Feels 59°F |
81% | 6.7 NNW | 30.03 | 55.4°F | 9% |
2 AM ClearUV: 0 |
61°F Feels 59°F |
81% | 7.2 NNW | 30.04 | 55.2°F | 10% |
3 AM ClearUV: 0 |
61°F Feels 58°F |
82% | 8.1 NW | 30.05 | 55.3°F | 10% |
4 AM ClearUV: 0 |
60°F Feels 58°F |
82% | 6.9 NW | 30.04 | 55°F | 10% |
5 AM ClearUV: 0 |
60°F Feels 59°F |
82% | 4.9 NNW | 30.04 | 54.7°F | 10% |
6 AM ClearUV: 0 |
60°F Feels 59°F |
82% | 5.8 NW | 30.05 | 54.7°F | 10% |
7 AM Sunny UV: 0 |
60°F Feels 58°F |
82% | 6.5 NW | 30.07 | 54.6°F | 10% |
8 AM SunnyUV: 0.3 |
61°F Feels 60°F |
80% | 5.1 NW | 30.08 | 54.8°F | 9% |
9 AM CloudyUV: 1 |
62°F Feels 59°F |
78% | 7.2 NW | 30.1 | 54.7°F | 18% |
10 AM OvercastUV: 2.3 |
63°F Feels 60°F |
76% | 6.7 NW | 30.11 | 54.9°F | 21% |
11 AM OvercastUV: 3.7 |
64°F Feels 63°F |
73% | 4.5 WNW | 30.1 | 54.8°F | 20% |
12 PM Partly CloudyUV: 4.7 |
64°F Feels 63°F |
72% | 4.7 W | 30.1 | 55°F | 9% |
1 PM SunnyUV: 5.3 |
65°F Feels 64°F |
72% | 5.1 W | 30.09 | 55.4°F | 7% |
2 PM CloudyUV: 4.8 |
65°F Feels 64°F |
71% | 5.4 W | 30.07 | 55.6°F | 16% |
3 PM OvercastUV: 3.4 |
66°F Feels 65°F |
68% | 4.7 W | 30.06 | 55.5°F | 17% |
4 PM OvercastUV: 1.8 |
67°F Feels 67°F |
65% | 3.8 W | 30.05 | 55°F | 16% |
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