Hourly Weather Forecast - Sumter, SC

12 AM
48°F
10%
1mph
NNE
Clear
Humidity
90%
Feels like
48°F
Dew Point
45°F
1 AM
48°F
10%
1mph
NNE
Hazy
Humidity
93%
Feels like
48°F
Dew Point
46°F
2 AM
48°F
10%
1mph
NNE
Hazy
Humidity
93%
Feels like
48°F
Dew Point
46°F
3 AM
47°F
10%
2mph
NNE
Hazy
Humidity
91%
Feels like
47°F
Dew Point
45°F
4 AM
47°F
10%
2mph
NNE
Clear
Humidity
90%
Feels like
47°F
Dew Point
44°F
5 AM
47°F
20%
2mph
NNE
Clear
Humidity
90%
Feels like
47°F
Dew Point
44°F
6 AM
46°F
20%
2mph
NE
Hazy
Humidity
91%
Feels like
46°F
Dew Point
44°F
7 AM
47°F
20%
2mph
NE
Clear
Humidity
89%
Feels like
47°F
Dew Point
44°F
7:23 AM
8 AM
48°F
20%
3mph
NE
Sunny
Humidity
88%
Feels like
48°F
Dew Point
45°F
9 AM
51°F
20%
3mph
NE
Sunny
Humidity
82%
Feels like
51°F
Dew Point
46°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit the Pacific Northwest with heavy rain, snow, and high winds.

Tuesday'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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