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Monthly
Forecasts
Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Smithtown, NY
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January
Average Temperature
High
4°
Feels 1
Low
-4°
Feels -8
Average Precipitation
9 Days
Rain amount
44.5mm
Snow amount
18.2cm
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Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
1°
6
4°
7
6°
8
6°
9
10°
10
9°
11
8°
12
3°
13
4°
14
4°
15
3°
16
2°
17
2°
18
2°
19
2°
20
21
22
23
24
25
26
27
28
29
30
31
Forecast
Monday, January 5, 2026
Day
1°
Feels -3
Wind
17 km/h S
Gust
26 km/h
Humidity
59%
P.O.P
30%
Night
-1°
Feels -4
Wind
19 km/h S
Gust
29 km/h
Humidity
93%
P.O.P
30%
Historical Averages
Jan 5
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.