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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Fairmount, IL
Content continues below
May
Average Temperature
High
24°
Feels 24
Low
12°
Feels 11
Average Precipitation
12 Days
Rain amount
91.7mm
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
19°
11
19°
12
24°
13
18°
14
18°
15
21°
16
28°
17
27°
18
25°
19
20°
20
23°
21
24°
22
24°
23
25°
24
22°
25
26
27
28
29
30
31
Forecast
Sunday, May 10, 2026
Day
19°
Feels 19
Wind
14 km/h N
Gust
21 km/h
Humidity
31%
P.O.P
20%
Night
7°
Feels 5
Wind
12 km/h N
Gust
18 km/h
Humidity
75%
P.O.P
20%
Historical Averages
May 10
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.