Winnsboro, SC Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Winnsboro, SC.

1 Currently Active Alert for Winnsboro

Current Conditions — Winnsboro, SC

CHESTER CATAWBA (KDCM)

Clear

80.6 F
Humidity:20%
Wind Speed:W 4.7 mph
Barometer:30.12 in
Dewpoint:35.6 F
Visibility:10.00 mi
Precip:--
Heat Index:79.3 F
Wind Chill:NA
Apr 22 2026, 03:15 PM EDT
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5-Day Forecast — Winnsboro, SC

Wednesday

High 82 °F
Forecast Missing
Wednesday
Night
Low 55 °F
Mostly Clear
Thursday

High 87 °F
Forecast Missing
Thursday
Night
Low 57 °F
Mostly Clear
Friday

High 86 °F
Mostly Sunny
Friday
Night
Low 59 °F
Mostly Clear
Saturday

High 86 °F
Chance of T-storms
Saturday
Night
Low 59 °F
Chance of T-storms
Sunday

High 80 °F
Chance of T-storms

Detailed Forecast — Winnsboro, SC

Wednesday
Sunny. High near 82°F. Wind 5 to 7 mph, with gusts as high as 14 mph.
Wednesday Night
Mostly Clear. Low around 55°F. Wind 2 to 3 mph, with gusts as high as 8 mph.
Thursday
Sunny. High near 87°F. Wind 2 to 3 mph, with gusts as high as 6 mph.
Thursday Night
Mostly Clear. Low around 57°F. Wind 1 to 3 mph, with gusts as high as 8 mph.
Friday
Mostly Sunny. High near 86°F. Wind 2 to 6 mph, with gusts as high as 10 mph.
Friday Night
Mostly Clear. Low around 59°F. Wind 2 to 3 mph, with gusts as high as 8 mph.
Saturday
Chance of Thunderstorms. High near 86°F. Wind 3 to 7 mph, with gusts as high as 13 mph.
Saturday Night
Chance of Thunderstorms. Low around 59°F. Wind 2 to 3 mph, with gusts as high as 8 mph.
Sunday
Chance of Thunderstorms. High near 80°F. Wind 5 to 6 mph, with gusts as high as 12 mph.
Sunday Night
Chance of Showers. Low around 55°F. Wind 3 to 5 mph, with gusts as high as 9 mph.
Monday
Isolated T-storm. High near 75°F. Wind around 6 mph, with gusts as high as 12 mph.
Monday Night
Chance of Thunderstorms. Low around 59°F. Wind 3 to 5 mph, with gusts as high as 9 mph.
Tuesday
Thunderstorms Likely. High near 80°F. Wind 5 to 8 mph, with gusts as high as 15 mph.
SC Radar
Current Radar • SC
Day 1 Outlook • April 22, 2026

Observation History — Winnsboro, SC

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
03:15 PM EDT W 4.7 10.00 Clear -- 80.6 35.6 20% NA 79.3 30.12 1020.0
02:55 PM EDT 5.8 10.00 Clear -- 80.6 35.6 20% NA 79.3 30.13 1020.3
02:35 PM EDT SW 5.8 10.00 Clear -- 80.6 35.6 20% NA 79.3 30.14 1020.7
02:15 PM EDT 6.9 10.00 Clear -- 78.8 35.6 21% NA 77.4 30.15 1021.0
01:55 PM EDT W 6.9 10.00 Clear -- 78.8 35.6 21% NA 77.4 30.16 1021.3
01:35 PM EDT 9.2 10.00 Clear -- 78.8 % NA NA 30.17 1021.7
01:15 PM EDT W 6.9 G 17.2 10.00 Clear -- 78.8 % NA NA 30.17 1021.7
12:35 PM EDT SW 4.7 10.00 Clear -- 77.0 42.8 30% NA 75.7 30.19 1022.4
12:15 PM EDT S 4.7 10.00 Clear -- 77.0 42.8 30% NA 75.7 30.20 1022.7
11:55 AM EDT SW 4.7 10.00 Clear -- 75.2 42.8 31% NA 73.9 30.21 1023.0
11:15 AM EDT SW 3.4 10.00 Clear -- 73.4 41.0 31% NA 72.0 30.22 1023.4
10:55 AM EDT 8.1 10.00 Clear -- 71.6 41.0 33% NA 70.0 30.23 1023.7
10:35 AM EDT 10.00 Clear -- NULL % NA NA M
10:15 AM EDT SW 8.1 10.00 Clear -- NULL 44.6 % NA NA 30.23 1023.7
09:55 AM EDT 0.0 10.00 Clear -- 64.4 44.6 49% NA NA 30.23 1023.7
09:35 AM EDT 5.8 10.00 Clear -- 62.6 44.6 52% NA NA 30.25 1024.1
09:15 AM EDT 4.7 10.00 Clear -- 60.8 44.6 55% NA NA 30.25 1024.1
08:55 AM EDT 3.4 10.00 Clear -- 57.2 46.4 67% NA NA 30.25 1024.1
08:35 AM EDT SW 3.4 10.00 Clear -- 53.6 44.6 71% NA NA 30.25 1024.1
08:15 AM EDT 0.0 10.00 Clear -- 51.8 44.6 76% NA NA 30.25 1024.1
07:55 AM EDT 0.0 10.00 Clear -- 51.8 44.6 76% NA NA 30.25 1024.1
07:35 AM EDT 0.0 10.00 Clear -- 50.0 44.6 82% NA NA 30.25 1024.1
07:15 AM EDT SW 3.4 10.00 Clear -- 50.0 42.8 76% NA NA 30.25 1024.1
06:55 AM EDT 3.4 10.00 Clear -- 50.0 42.8 76% NA NA 30.23 1023.7

Regional Weather Observation

CHESTER CATAWBA (KDCM)

Clear
80.6 F

WINNSBORO (KFDW)

Clear
82.4 F

ROCK HILL (KUZA)

Clear
82.4 F

NEWBERRY (KEOE)

Clear
82.4 F

LAURENS (KLUX)

Clear
82.4 F

SPARTANBURG (KSPA)

Clear
80.6 F
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