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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Sumter, SC
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August
Average Temperature
High
32°
Feels 35
Low
22°
Feels 22
Average Precipitation
13 Days
Rain amount
98.4mm
Snow amount
0cm
Content continues below
Daily Historical Averages
August 2026
S
M
T
W
T
F
S
1
2
3
4
31°
5
31°
6
32°
7
32°
8
33°
9
33°
10
33°
11
35°
12
35°
13
35°
14
34°
15
34°
16
33°
17
33°
18
34°
19
20
21
22
23
24
25
26
27
28
29
30
31
Forecast
Tuesday, August 4, 2026
Day
31°
Feels 34
Wind
5 km/h S
Gust
8 km/h
Humidity
60%
P.O.P
60%
Rain
1-3 mm
Night
21°
Feels 22
Wind
9 km/h S
Gust
14 km/h
Humidity
97%
P.O.P
90%
Rain
1-3 mm
Historical Averages
Aug 4
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.