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Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Yaphank, NY
Content continues below
May
Average Temperature
High
20°
Feels 20
Low
10°
Feels 10
Average Precipitation
11 Days
Rain amount
75.1mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 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
19
20
21
17°
22
16°
23
14°
24
14°
25
18°
26
19°
27
22°
28
19°
29
20°
30
20°
31
18°
Forecast
Thursday, May 21, 2026
Day
17°
Feels 17
Wind
24 km/h N
Gust
36 km/h
Humidity
62%
P.O.P
80%
Rain
~5 mm
Night
11°
Feels 9
Wind
16 km/h S
Gust
24 km/h
Humidity
87%
P.O.P
40%
Rain
2-4 mm
Historical Averages
May 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.