Hourly Weather Forecast - Hartsville, SC

12 AM
57°F
10%
7mph
W
Mostly Clear
Humidity
90%
Feels like
57°F
Dew Point
54°F
1 AM
56°F
10%
7mph
W
Hazy
Humidity
92%
Feels like
56°F
Dew Point
54°F
2 AM
56°F
10%
6mph
W
Hazy
Humidity
93%
Feels like
56°F
Dew Point
54°F
3 AM
56°F
10%
6mph
W
Foggy
Humidity
100%
Feels like
56°F
Dew Point
56°F
4 AM
57°F
10%
6mph
W
Foggy
Humidity
100%
Feels like
57°F
Dew Point
57°F
5 AM
56°F
10%
6mph
W
Foggy
Humidity
100%
Feels like
56°F
Dew Point
56°F
6 AM
56°F
10%
5mph
WNW
Foggy
Humidity
100%
Feels like
56°F
Dew Point
56°F
7 AM
57°F
10%
5mph
WNW
Foggy
Humidity
99%
Feels like
57°F
Dew Point
56°F

Rain And Snow Totals Through Monday

Atmospheric River Impacts Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California through Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

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Today's Weather Outlook

Today's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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