Hourly Weather Forecast - Stony Brook, NY

12 AM
38°F
10%
14mph
SSW
Cloudy
Humidity
80%
Feels like
30°F
Dew Point
33°F
1 AM
39°F
0%
15mph
SSW
Cloudy
Humidity
78%
Feels like
31°F
Dew Point
33°F
2 AM
40°F
0%
16mph
SSW
Cloudy
Humidity
78%
Feels like
31°F
Dew Point
34°F
3 AM
40°F
10%
15mph
SW
Cloudy
Humidity
77%
Feels like
32°F
Dew Point
33°F
4 AM
40°F
10%
15mph
SW
Cloudy
Humidity
76%
Feels like
32°F
Dew Point
33°F
5 AM
40°F
10%
14mph
SW
Cloudy
Humidity
75%
Feels like
32°F
Dew Point
32°F
6 AM
40°F
20%
13mph
SW
Cloudy
Humidity
73%
Feels like
32°F
Dew Point
32°F
7 AM
40°F
20%
12mph
WSW
Cloudy
Humidity
71%
Feels like
33°F
Dew Point
32°F
7:13 AM
8 AM
41°F
20%
13mph
WSW
Partly Cloudy
Humidity
70%
Feels like
34°F
Dew Point
32°F
9 AM
42°F
20%
13mph
WSW
Mostly Sunny
Humidity
66%
Feels like
35°F
Dew Point
32°F
10 AM
43°F
20%
14mph
WSW
Sunny
Humidity
64%
Feels like
36°F
Dew Point
32°F
11 AM
44°F
10%
15mph
W
Sunny
Humidity
61%
Feels like
37°F
Dew Point
32°F
12 PM
45°F
10%
17mph
W
Sunny
Humidity
57%
Feels like
38°F
Dew Point
31°F
1 PM
44°F
0%
17mph
W
Sunny
Humidity
54%
Feels like
37°F
Dew Point
29°F
2 PM
43°F
0%
19mph
W
Mostly Sunny
Humidity
53%
Feels like
34°F
Dew Point
27°F
3 PM
41°F
0%
20mph
W
Partly Cloudy
Humidity
52%
Feels like
32°F
Dew Point
25°F
4 PM
39°F
0%
21mph
WNW
Windy
Humidity
53%
Feels like
29°F
Dew Point
23°F
4:27 PM
5 PM
37°F
0%
21mph
WNW
Windy
Humidity
53%
Feels like
26°F
Dew Point
21°F
6 PM
35°F
0%
21mph
WNW
Windy
Humidity
54%
Feels like
23°F
Dew Point
20°F
7 PM
33°F
0%
21mph
WNW
Windy
Humidity
56%
Feels like
21°F
Dew Point
19°F
8 PM
31°F
0%
20mph
WNW
Clear
Humidity
56%
Feels like
19°F
Dew Point
17°F
9 PM
30°F
0%
19mph
WNW
Clear
Humidity
56%
Feels like
18°F
Dew Point
17°F
10 PM
29°F
0%
19mph
WNW
Clear
Humidity
56%
Feels like
17°F
Dew Point
16°F
11 PM
29°F
0%
18mph
WNW
Clear
Humidity
56%
Feels like
16°F
Dew Point
15°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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