Current Weather
4:13 PM
48°F
Mostly cloudy
RealFeel® 48°
Chilly
RealFeel Shade™ 45°
Chilly
RealFeel®
48°
RealFeel Shade™
45°
Max UV Index
1.5 (Low)
Wind
NNW 7 mph
Wind Gusts
13 mph
Humidity
47%
Indoor Humidity
38% (Dry)
Dew Point
29° F
Pressure
↔ 30.12 in
Cloud Cover
79%
Visibility
10 mi
Cloud Ceiling
20000 ft
Day
4/20
50°Hi
RealFeel®
55°
Cool
RealFeel Shade™
48°
Chilly
Decreasing clouds and chilly; an afternoon shower in places; a jacket may come in handy
Max UV Index8.0 (Very High)
AccuLumen Brightness Index™6 (Medium)
WindW 9 mph
Wind Gusts23 mph
Probability of Precipitation40%
Probability of Thunderstorms8%
Precipitation0.01 in
Rain0.01 in
Hours of Precipitation0.5
Hours of Rain0.5
Cloud Cover61%
Night
4/20
33°Lo
RealFeel®
26°
Cold
Clear to partly cloudy and cold with the temperature tying the record low from 2014; cover sensitive vegetation and bring plants indoors
WindNNW 10 mph
Wind Gusts14 mph
Probability of Precipitation4%
Probability of Thunderstorms0%
Precipitation0.00 in
Cloud Cover16%
Sun & Moon
13 hrs 31 mins
Rise
6:06 AM
Set
7:37 PM
Waxing Crescent
Rise
7:52 AM
Set
12:09 AM
Temperature History
4/20High
Low
Forecast
50°
33°
Average
60°
43°
Last Year
70°
49°
Record
82°
2005
32°
2001
Current Weather Conditions in Stony Brook
Stony Brook, New York is currently Mostly cloudy with a temperature of 48°. The current RealFeel® Temperature is 48° (Chilly) based on observed conditions including 47% humidity, 79% cloud cover, a UV index of 2, and winds of 7 mph. In shade, the RealFeel Shade™ is 45°. AccuWeather's MinuteCast® provides minute-by-minute precipitation forecasts for Stony Brook, powered by forecasting systems and proprietary technology developed by AccuWeather meteorologists since 1962.
