Hourly Weather Forecast - Stony Brook, NY

12 AM
31°F
0%
22mph
W
Windy
Humidity
59%
Feels like
18°F
Dew Point
18°F
1 AM
31°F
0%
21mph
W
Windy
Humidity
58%
Feels like
18°F
Dew Point
18°F
2 AM
31°F
0%
20mph
W
Mostly Clear
Humidity
59%
Feels like
18°F
Dew Point
18°F
3 AM
30°F
0%
19mph
WNW
Clear
Humidity
59%
Feels like
18°F
Dew Point
18°F
4 AM
30°F
0%
17mph
W
Clear
Humidity
59%
Feels like
18°F
Dew Point
18°F
5 AM
30°F
0%
16mph
WNW
Mostly Clear
Humidity
60%
Feels like
19°F
Dew Point
18°F
6 AM
30°F
0%
14mph
WNW
Mostly Clear
Humidity
61%
Feels like
19°F
Dew Point
18°F
7 AM
30°F
0%
13mph
WNW
Mostly Clear
Humidity
62%
Feels like
20°F
Dew Point
19°F
7:13 AM
8 AM
30°F
0%
12mph
WNW
Mostly Sunny
Humidity
64%
Feels like
21°F
Dew Point
19°F
9 AM
31°F
0%
11mph
WNW
Sunny
Humidity
62%
Feels like
22°F
Dew Point
20°F
10 AM
32°F
0%
11mph
W
Sunny
Humidity
61%
Feels like
23°F
Dew Point
20°F
11 AM
33°F
0%
10mph
W
Sunny
Humidity
59%
Feels like
25°F
Dew Point
20°F
12 PM
34°F
0%
9mph
W
Sunny
Humidity
57%
Feels like
27°F
Dew Point
20°F
1 PM
35°F
0%
8mph
W
Mostly Sunny
Humidity
57%
Feels like
28°F
Dew Point
21°F
2 PM
35°F
0%
8mph
WSW
Mostly Sunny
Humidity
58%
Feels like
29°F
Dew Point
22°F
3 PM
35°F
0%
7mph
SW
Partly Cloudy
Humidity
60%
Feels like
29°F
Dew Point
22°F
4 PM
34°F
0%
7mph
SW
Cloudy
Humidity
64%
Feels like
28°F
Dew Point
23°F
4:27 PM
5 PM
34°F
0%
8mph
SSW
Mostly Cloudy
Humidity
66%
Feels like
27°F
Dew Point
24°F
6 PM
34°F
0%
8mph
SSW
Mostly Cloudy
Humidity
68%
Feels like
27°F
Dew Point
25°F
7 PM
34°F
0%
9mph
SSW
Partly Cloudy
Humidity
70%
Feels like
27°F
Dew Point
26°F
8 PM
35°F
0%
10mph
SSW
Mostly Cloudy
Humidity
73%
Feels like
27°F
Dew Point
27°F
9 PM
36°F
0%
11mph
SSW
Mostly Cloudy
Humidity
76%
Feels like
28°F
Dew Point
29°F
10 PM
36°F
0%
12mph
SSW
Cloudy
Humidity
78%
Feels like
28°F
Dew Point
30°F
11 PM
37°F
10%
13mph
SSW
Cloudy
Humidity
80%
Feels like
29°F
Dew Point
32°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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