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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Smithtown, NY
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Daily Historical Averages
April 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
17°
19
14°
20
9°
21
8°
22
15°
23
14°
24
14°
25
14°
26
14°
27
14°
28
15°
29
15°
30
14°
Forecast
Saturday, April 18, 2026
Day
17°
Feels 16
Wind
19 km/h E
Gust
35 km/h
Humidity
63%
P.O.P
10%
Night
9°
Feels 7
Wind
17 km/h SE
Gust
32 km/h
Humidity
100%
P.O.P
40%
Rain
<1 mm
Historical Averages
Apr 18
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
April
Average Temperature
High
15°
Feels 14
Low
5°
Feels 3
Average Precipitation
9 Days
Rain amount
78.1mm
Snow amount
0.1cm