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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Summerville, SC
Content continues below
May
Average Temperature
High
28°
Feels 29
Low
17°
Feels 17
Average Precipitation
8 Days
Rain amount
111.2mm
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
31°
18
31°
19
31°
20
32°
21
32°
22
28°
23
26°
24
28°
25
27°
26
29°
27
30°
28
29°
29
29°
30
28°
31
28°
Forecast
Sunday, May 17, 2026
Day
31°
Feels 32
Wind
14 km/h S
Gust
20 km/h
Humidity
46%
P.O.P
40%
Rain
~1 mm
Night
19°
Feels 20
Wind
19 km/h S
Gust
29 km/h
Humidity
97%
P.O.P
10%
Historical Averages
May 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.