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Day 1 Outlook • April 21, 2026
Day 2 Outlook • April 22, 2026
Day 3 Outlook • April 23, 2026
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dBZ 5
75

Hazardous Weather Conditions

  • No active alerts for HARLEYVILLE, SOUTH CAROLINA

Current Conditions: HARLEYVILLE, SOUTH CAROLINA

ORANGEBURG (KOGB)

Clear

48.2 F
Humidity:76%
Wind Speed: 4.6 mph
Barometer:30.24 in
Dewpoint:41.0 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:46.4 F
Apr 21 2026, 04:05 AM EDT
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5 Day Forecast for HARLEYVILLE, SOUTH CAROLINA (29448)

Tuesday

High 77 °F
Forecast Missing
Tuesday
Night
Low 50 °F
Mostly Cloudy
Wednesday

High 84 °F
Mostly Cloudy
Wednesday
Night
Low 55 °F
Mostly Clear
Thursday

High 87 °F
Mostly Sunny
Thursday
Night
Low 55 °F
Mostly Clear
Friday

High 87 °F
Partly Sunny
Friday
Night
Low 59 °F
Mostly Clear
Saturday

High 89 °F
Isolated T-storm

Detailed Forecast for HARLEYVILLE, SOUTH CAROLINA (29448)

Tuesday
Sunny. High near 77°F. Wind 2 to 6 mph, with gusts as high as 13 mph.
Tuesday Night
Mostly Cloudy. Low around 50°F. Wind 1 to 2 mph, with gusts as high as 6 mph.
Wednesday
Mostly Cloudy. High near 84°F. Wind 1 to 7 mph, with gusts as high as 14 mph.
Wednesday Night
Mostly Clear. Low around 55°F. Wind 2 to 5 mph, with gusts as high as 13 mph.
Thursday
Mostly Sunny. High near 87°F. Wind 2 to 5 mph, with gusts as high as 12 mph.
Thursday Night
Mostly Clear. Low around 55°F. Wind 2 to 5 mph, with gusts as high as 12 mph.
Friday
Partly Sunny. High near 87°F. Wind 2 to 6 mph, with gusts as high as 13 mph.
Friday Night
Mostly Clear. Low around 59°F. Wind 3 to 6 mph, with gusts as high as 14 mph.
Saturday
Isolated T-storm. High near 89°F. Wind 2 to 7 mph, with gusts as high as 14 mph.
Saturday Night
Isolated T-storm. Low around 62°F. Wind 3 to 6 mph, with gusts as high as 14 mph.
Sunday
Chance of Thunderstorms. High near 86°F. Wind 3 to 7 mph, with gusts as high as 13 mph.
Sunday Night
Chance of Rain Showers. Low around 62°F. Wind 2 to 3 mph, with gusts as high as 9 mph.
Monday
Chance of Thunderstorms. High near 84°F. Wind 5 to 8 mph, with gusts as high as 15 mph.
SC Radar
Current Radar • SC
Day 1 Outlook • April 21, 2026

Observation History for HARLEYVILLE, SOUTH CAROLINA

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)
04:05 AM EDT 4.6 10.00 Clear -- 48.2 41.0 76% 46.4 NA 30.24 1024.0
03:50 AM EDT 4.6 10.00 Clear -- 50.0 42.8 76% NA NA 30.24 1024.0
03:35 AM EDT 0.0 10.00 Clear -- 50.0 42.8 76% NA NA 30.23 1023.7
03:15 AM EDT 0.0 10.00 Clear -- 48.2 42.8 81% NA NA 30.23 1023.7
03:05 AM EDT 0.0 10.00 Clear -- 48.2 42.8 81% NA NA 30.23 1023.7
02:50 AM EDT 0.0 10.00 Clear -- 50.0 42.8 76% NA NA 30.23 1023.7
02:45 AM EDT 0.0 10.00 Clear -- 50.0 42.8 76% NA NA 30.23 1023.7
02:35 AM EDT 0.0 10.00 Clear -- 51.8 41.0 67% NA NA 30.23 1023.7
02:15 AM EDT 0.0 10.00 Clear -- 51.8 41.0 67% NA NA 30.23 1023.7
02:05 AM EDT S 3.4 10.00 Clear -- 53.6 42.8 67% NA NA 30.23 1023.7
01:50 AM EDT 0.0 10.00 Clear -- 51.8 41.0 67% NA NA 30.24 1024.0
01:35 AM EDT S 3.4 10.00 Clear -- 53.6 41.0 62% NA NA 30.24 1024.0
01:20 AM EDT 4.6 10.00 Clear -- 53.6 42.8 67% NA NA 30.25 1024.4
01:05 AM EDT S 4.6 10.00 Clear -- 53.6 42.8 67% NA NA 30.24 1024.0
01:00 AM EDT S 4.6 10.00 Clear -- 53.6 42.8 67% NA NA 30.24 1024.0
12:50 AM EDT S 3.4 10.00 Clear -- 53.6 42.8 67% NA NA 30.24 1024.0
12:30 AM EDT S 3.4 10.00 Clear -- 53.6 42.8 67% NA NA 30.23 1023.7
12:10 AM EDT 3.4 10.00 Clear -- 55.4 42.8 62% NA NA 30.23 1023.7
12:00 AM EDT 3.4 10.00 Clear -- 53.6 42.8 67% NA NA 30.23 1023.7
11:35 PM EDT 4.6 10.00 Clear -- 55.4 41.0 58% NA NA 30.23 1023.7
11:25 PM EDT S 4.6 10.00 Clear -- 55.4 39.2 54% NA NA 30.23 1023.7
11:10 PM EDT S 3.4 10.00 Clear -- 57.2 39.2 51% NA NA 30.23 1023.7
11:05 PM EDT 4.6 10.00 Clear -- 57.2 39.2 51% NA NA 30.23 1023.7
11:00 PM EDT SE 5.7 10.00 Clear -- 57.2 39.2 51% NA NA 30.23 1023.7

Regional Weather Observation

ORANGEBURG (KOGB)

Clear
48.2 F

SUMMERVILLE (KDYB)

Clear
48.2 F

MANNING (KMNI)

Clear
51.8 F

MCENTIRE ANG BAS (KMMT)

Clear
55.9 F

BERKELEY MONCKS (KMKS)

Clear
53.6 F

SHAW AFB/SUMTER (KSSC)

Clear
51.1 F
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