Hourly Weather Forecast - Stony Brook, NY

12 AM
37°F
0%
5mph
WNW
Mostly Clear
Humidity
77%
Feels like
33°F
Dew Point
30°F
1 AM
36°F
0%
3mph
WNW
Mostly Clear
Humidity
78%
Feels like
33°F
Dew Point
30°F
2 AM
35°F
0%
3mph
W
Mostly Clear
Humidity
81%
Feels like
35°F
Dew Point
30°F
3 AM
34°F
0%
4mph
W
Mostly Clear
Humidity
85%
Feels like
30°F
Dew Point
29°F
4 AM
33°F
0%
4mph
WSW
Mostly Clear
Humidity
87%
Feels like
29°F
Dew Point
29°F
5 AM
32°F
0%
3mph
WSW
Mostly Clear
Humidity
89%
Feels like
32°F
Dew Point
29°F
6 AM
33°F
0%
2mph
SSE
Mostly Clear
Humidity
83%
Feels like
33°F
Dew Point
29°F
7 AM
35°F
0%
1mph
ESE
Clear
Humidity
77%
Feels like
35°F
Dew Point
29°F
7:11 AM
8 AM
38°F
0%
1mph
SE
Sunny
Humidity
73%
Feels like
38°F
Dew Point
30°F
9 AM
39°F
0%
2mph
SE
Sunny
Humidity
73%
Feels like
39°F
Dew Point
31°F
10 AM
40°F
0%
3mph
SE
Sunny
Humidity
75%
Feels like
40°F
Dew Point
32°F
11 AM
41°F
0%
3mph
SSE
Mostly Sunny
Humidity
76%
Feels like
40°F
Dew Point
34°F
12 PM
43°F
0%
5mph
SSE
Partly Cloudy
Humidity
79%
Feels like
40°F
Dew Point
37°F
1 PM
44°F
0%
6mph
SSE
Partly Cloudy
Humidity
82%
Feels like
40°F
Dew Point
39°F
2 PM
44°F
0%
6mph
SSE
Partly Cloudy
Humidity
85%
Feels like
41°F
Dew Point
40°F
3 PM
44°F
0%
6mph
SSE
Partly Cloudy
Humidity
86%
Feels like
41°F
Dew Point
40°F
4 PM
44°F
0%
6mph
SSE
Mostly Sunny
Humidity
89%
Feels like
40°F
Dew Point
41°F
4:26 PM
5 PM
44°F
0%
6mph
SSE
Mostly Clear
Humidity
90%
Feels like
40°F
Dew Point
41°F
6 PM
44°F
0%
7mph
SSE
Partly Cloudy
Humidity
90%
Feels like
40°F
Dew Point
41°F
7 PM
44°F
0%
7mph
SSE
Partly Cloudy
Humidity
91%
Feels like
40°F
Dew Point
42°F
8 PM
45°F
10%
8mph
SSE
Partly Cloudy
Humidity
93%
Feels like
40°F
Dew Point
43°F
9 PM
46°F
10%
8mph
SSE
Partly Cloudy
Humidity
94%
Feels like
41°F
Dew Point
44°F
10 PM
47°F
20%
9mph
S
Partly Cloudy
Humidity
95%
Feels like
42°F
Dew Point
45°F
11 PM
48°F
40%
10mph
S
40% Chance Rain Showers
Humidity
94%
Feels like
43°F
Dew Point
46°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

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

Wednesday's Weather Outlook

Today'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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