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Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Sullivan, MO
Content continues below
May
Average Temperature
High
24°
Feels 24
Low
13°
Feels 12
Average Precipitation
14 Days
Rain amount
144mm
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
22°
22
19°
23
25°
24
24°
25
26°
26
27°
27
28°
28
28°
29
25°
30
25°
31
27°
Forecast
Thursday, May 21, 2026
Day
22°
Feels 22
Wind
14 km/h NE
Gust
20 km/h
Humidity
55%
P.O.P
30%
Night
15°
Feels 15
Wind
16 km/h E
Gust
24 km/h
Humidity
88%
P.O.P
30%
Historical Averages
May 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.