Hourly Weather Forecast - Sumter, SC

12 AM
28°F
0%
1mph
S
Clear
Humidity
52%
Feels like
28°F
Dew Point
12°F
1 AM
27°F
0%
1mph
SSW
Clear
Humidity
54%
Feels like
27°F
Dew Point
13°F
2 AM
27°F
0%
1mph
SSW
Clear
Humidity
56%
Feels like
27°F
Dew Point
13°F
3 AM
27°F
0%
1mph
SW
Clear
Humidity
59%
Feels like
27°F
Dew Point
14°F
4 AM
27°F
0%
1mph
WSW
Clear
Humidity
60%
Feels like
27°F
Dew Point
15°F
5 AM
27°F
0%
1mph
WSW
Clear
Humidity
61%
Feels like
27°F
Dew Point
15°F
6 AM
27°F
0%
1mph
WSW
Clear
Humidity
60%
Feels like
27°F
Dew Point
15°F
7 AM
29°F
0%
1mph
SW
Clear
Humidity
47%
Feels like
29°F
Dew Point
11°F
7:19 AM
8 AM
32°F
0%
1mph
SW
Sunny
Humidity
48%
Feels like
32°F
Dew Point
15°F
9 AM
36°F
0%
1mph
WSW
Sunny
Humidity
48%
Feels like
36°F
Dew Point
18°F
10 AM
39°F
0%
1mph
SW
Sunny
Humidity
44%
Feels like
39°F
Dew Point
19°F
11 AM
43°F
0%
1mph
SW
Sunny
Humidity
42%
Feels like
43°F
Dew Point
21°F
12 PM
46°F
0%
1mph
SW
Sunny
Humidity
38%
Feels like
46°F
Dew Point
22°F
1 PM
49°F
0%
2mph
SW
Sunny
Humidity
37%
Feels like
49°F
Dew Point
24°F
2 PM
51°F
0%
2mph
SSW
Sunny
Humidity
36%
Feels like
51°F
Dew Point
25°F
3 PM
51°F
0%
2mph
SSW
Sunny
Humidity
38%
Feels like
51°F
Dew Point
26°F
4 PM
50°F
0%
2mph
S
Sunny
Humidity
42%
Feels like
50°F
Dew Point
28°F
5 PM
47°F
0%
2mph
S
Sunny
Humidity
47%
Feels like
47°F
Dew Point
27°F
5:14 PM
6 PM
43°F
0%
2mph
S
Clear
Humidity
51%
Feels like
43°F
Dew Point
26°F
7 PM
40°F
0%
2mph
S
Clear
Humidity
54%
Feels like
40°F
Dew Point
25°F
8 PM
39°F
0%
2mph
S
Clear
Humidity
56%
Feels like
39°F
Dew Point
25°F
9 PM
37°F
0%
2mph
SSW
Clear
Humidity
58%
Feels like
37°F
Dew Point
24°F
10 PM
36°F
0%
2mph
SSW
Clear
Humidity
60%
Feels like
36°F
Dew Point
24°F
11 PM
35°F
0%
2mph
SSW
Clear
Humidity
62%
Feels like
35°F
Dew Point
23°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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