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WeatherLive › New York › Smithtown

Smithtown, NY Weather (11787)

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherSmithtown · 3:53 PM EDT
81° | 69°
80°F
Feels like 85°
Rain
WindS 8 mph · Gusts 10 mph
Precip90% · 2.03 in
Humidity84% · Dew point 75°
UV index6 High
Air Quality165 Unhealthy
Pressure29.94 inHg
Visibility6 mi
Sunrise / Sunset6:19 AM · 7:25 PM · 13h 6m

Weather map — Smithtown

Full radar →
Now
80°
0.16 in
8 mph
16:00
80°
0.16 in
7 mph
17:00
81°
33%
6 mph
18:00
77°
41%
4 mph
19:00
75°
43%
1 mph
20:00
74°
0.02 in
4 mph
21:00
72°
0.10 in
6 mph
22:00
71°
0.09 in
7 mph
23:00
71°
0.02 in
7 mph
00:00
70°
0.02 in
8 mph
01:00
69°
34%
9 mph
02:00
69°
0.04 in
7 mph
03:00
71°
33%
6 mph
04:00
71°
33%
7 mph
05:00
70°
39%
9 mph
06:00
69°
40%
9 mph
07:00
69°
35%
10 mph
08:00
68°
33%
10 mph
09:00
69°
30%
9 mph
10:00
70°
28%
9 mph
11:00
72°
24%
10 mph
12:00
74°
21%
10 mph
13:00
75°
18%
9 mph
14:00
75°
19%
10 mph

Today · Tue 9/1

High 81°
90% / 2.03 in

Rain. Winds SW at 8 mph.

Tonight · Tue 9/1

Low 68°
85% / 0.10 in

Showers. Winds NE at 6 mph.

Tomorrow · Wed 9/2

76° | 68°
74% / 0.08 in

Showers. Winds E at 11 mph.

7-day trend

Smithtown · temperature + precipitation

10-day forecast

Updated 3:53 PM

Details & indices

Wind
8 mph S
Gusts 10 mph
Humidity
84%
Dew point 75°
Pressure
29.94 inHg
Rising
UV index
6 — High
High today
Air Quality
Unhealthy
AQI 165 · US EPA
Allergy
Low
Ragweed
Visibility
6 mi
Clear view
Allergy — Smithtown

🌿 Conditions right now

View all →
Birch
None
Grass
Low
Oak
None
Alder
None
Hazel
None
Mugwort
Low
Ragweed
Low

Sun & moon

Sunrise6:19 AM
Sunset7:25 PM
Length of day13h 6m
Moonrise9:20 PM
Moonset11:12 AM
Moon phase🌖 Waning Gibbous · 77%
Next full moonSep 26 Harvest Moon
Latitude40.8559°N
Longitude-73.2007°E

Water temps nearby

View all →
Jones Beach (24 mi)76°
Rockaway Beach (37 mi)76°
Coney Island Beach (45 mi)78°
Asbury Park (61 mi)76°
🌦️Dry now — rain moving in around 4:45 PM (52 min)
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Poor
Line-drying weather
Grilling
Fair
Fire up the grill
Running
Poor
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in {{REGION}}
New York
Partly cloudy
88°
Brooklyn
Sunny
87°
Queens
Showers
85°
Manhattan
Partly cloudy
88°
The Bronx
Light rain
88°
Staten Island
Partly cloudy
89°
Data sources · Tuesday, September 1
Where the Smithtown forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 40.8559°N, -73.2007°.
NBM + global weather models
Updated: 3:53 PM
Weather in Smithtown
Smithtown's outlook: warmest day near 88° (Thursday), coldest night about 55° (Wednesday). Models drop roughly 4.5 in of precipitation across the stretch — watch Tuesday (90%). Wind is the one to watch: gusts to 35 mph around Tuesday. No active NWS alerts at the moment — quiet on the hazards front. Right now Smithtown is about 16° cooler than nearby Philadelphia. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Smithtown, NY · Elev 59 ft · 40.86°N, 73.20°W · New York · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 3:53 PM