The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
⋮
Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Postville, IA
Content continues below
May
Average Temperature
High
21°
Feels 20
Low
10°
Feels 8
Average Precipitation
11 Days
Rain amount
71.9mm
Snow amount
0.1cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
23°
5
12°
6
10°
7
12°
8
15°
9
18°
10
17°
11
17°
12
17°
13
17°
14
18°
15
19°
16
20°
17
19°
18
19°
19
20
21
22
23
24
25
26
27
28
29
30
31
Forecast
Monday, May 4, 2026
Day
23°
Feels 23
Wind
34 km/h SW
Gust
51 km/h
Humidity
36%
P.O.P
30%
Night
5°
Feels 3
Wind
31 km/h NW
Gust
47 km/h
Humidity
65%
P.O.P
30%
Historical Averages
May 4
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.