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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Marion, IN
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May
Average Temperature
High
23°
Feels 23
Low
11°
Feels 10
Average Precipitation
12 Days
Rain amount
88.1mm
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
30°
19
29°
20
18°
21
19°
22
21°
23
24°
24
25°
25
25°
26
23°
27
24°
28
24°
29
24°
30
25°
31
25°
Forecast
Monday, May 18, 2026
Day
30°
Feels 31
Wind
35 km/h S
Gust
54 km/h
Humidity
49%
P.O.P
80%
Rain
15-20 mm
Night
22°
Feels 22
Wind
32 km/h S
Gust
50 km/h
Humidity
78%
P.O.P
70%
Rain
~10 mm
Historical Averages
May 18
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.