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Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Irwin, PA
Content continues below
May
Average Temperature
High
22°
Feels 22
Low
11°
Feels 10
Average Precipitation
12 Days
Rain amount
81.5mm
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
32°
20
22°
21
21°
22
18°
23
19°
24
23°
25
23°
26
22°
27
23°
28
23°
29
22°
30
23°
31
23°
Forecast
Tuesday, May 19, 2026
Day
32°
Feels 32
Wind
23 km/h SW
Gust
35 km/h
Humidity
38%
P.O.P
40%
Rain
<1 mm
Night
21°
Feels 20
Wind
18 km/h SW
Gust
27 km/h
Humidity
88%
P.O.P
30%
Historical Averages
May 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.