Marion, SC Weather Forecast & Alerts

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

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Current Conditions — Marion, SC

FLORENCE (KFLO)

Clear

69.8 F
Humidity:43%
Wind Speed: 10.4 G 16.1 mph
Barometer:30.08 in
Dewpoint:46.4 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 22 2026, 09:45 PM EDT
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5-Day Forecast — Marion, SC

Wednesday

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

High 87 °F
Forecast Missing
Thursday
Night
Low 59 °F
Mostly Clear
Friday

High 89 °F
Mostly Sunny
Friday
Night
Low 60 °F
Mostly Clear
Saturday

High 89 °F
Chance of T-storms
Saturday
Night
Low 60 °F
T-storms Likely
Sunday

High 80 °F
Chance of T-storms

Detailed Forecast — Marion, SC

Wednesday
Sunny. High near 82°F. Wind 6 to 9 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly Clear. Low around 55°F. Wind 3 to 7 mph, with gusts as high as 13 mph.
Thursday
Sunny. High near 87°F. Wind 3 to 6 mph, with gusts as high as 9 mph.
Thursday Night
Mostly Clear. Low around 59°F. Wind 3 to 5 mph, with gusts as high as 10 mph.
Friday
Mostly Sunny. High near 89°F. Wind 5 to 6 mph, with gusts as high as 12 mph.
Friday Night
Mostly Clear. Low around 60°F. Wind 5 to 6 mph, with gusts as high as 10 mph.
Saturday
Chance of Thunderstorms. High near 89°F. Wind 3 to 7 mph, with gusts as high as 15 mph.
Saturday Night
Thunderstorms Likely. Low around 60°F. Wind 1 to 6 mph, with gusts as high as 13 mph.
Sunday
Chance of Thunderstorms. High near 80°F. Wind 2 to 6 mph, with gusts as high as 13 mph.
Sunday Night
Partly Cloudy. Low around 53°F. Wind 3 to 5 mph, with gusts as high as 10 mph.
Monday
Slight Chance of Showers. High near 80°F. Wind 5 to 7 mph, with gusts as high as 13 mph.
Monday Night
Chance of Rain. Low around 59°F. Wind 2 to 3 mph, with gusts as high as 9 mph.
Tuesday
Chance of Thunderstorms. High near 82°F. Wind 3 to 8 mph, with gusts as high as 17 mph.
Tuesday Night
Chance of Scattered Thunderstorms. Low around 60°F. Wind 2 to 3 mph, with gusts as high as 9 mph.
SC Radar
Current Radar • SC
Day 1 Outlook • April 23, 2026

Observation History — Marion, 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)
09:45 PM EDT 10.4 G 16.1 10.00 Clear -- 69.8 46.4 43% NA NA 30.08 1018.6
09:35 PM EDT S 8.1 9.00 Clear -- 69.8 46.4 43% NA NA 30.08 1018.6
09:20 PM EDT 6.9 9.00 Clear -- 69.8 46.4 43% NA NA 30.08 1018.6
09:00 PM EDT 6.9 8.00 Clear -- 71.6 46.4 41% NA 70.3 30.07 1018.3
08:45 PM EDT S 6.9 8.00 Clear -- 71.6 46.4 41% NA 70.3 30.07 1018.3
08:35 PM EDT 6.9 8.00 Clear -- 71.6 46.4 41% NA 70.3 30.07 1018.3
08:25 PM EDT S 6.9 8.00 Clear -- 71.6 46.4 41% NA 70.3 30.06 1017.9
08:15 PM EDT S 5.7 6.00 Haze -- 73.4 46.4 38% NA 72.3 30.06 1017.9
08:05 PM EDT S 5.7 6.00 Haze -- 73.4 46.4 38% NA 72.3 30.06 1017.9
08:00 PM EDT 6.9 6.00 Haze -- 75.2 46.4 36% NA 74.1 30.06 1017.9
07:40 PM EDT 6.9 5.00 Haze -- 75.2 46.4 36% NA 74.1 30.05 1017.6
07:30 PM EDT 6.9 5.00 Haze -- 77.0 46.4 34% NA 75.9 30.05 1017.6
07:15 PM EDT 9.2 5.00 Haze -- 78.8 46.4 32% NA 77.9 30.05 1017.6
07:00 PM EDT 10.4 5.00 Haze -- 78.8 46.4 32% NA 77.9 30.05 1017.6
06:45 PM EDT 10.4 5.00 Haze -- 80.6 44.6 28% NA 79.7 30.05 1017.6
06:30 PM EDT 10.4 5.00 Haze -- 80.6 42.8 26% NA 79.5 30.05 1017.6
06:20 PM EDT SW 12.7 5.00 Haze -- 80.6 42.8 26% NA 79.5 30.06 1017.9
06:05 PM EDT 11.5 6.00 Haze -- 82.4 42.8 25% NA 80.4 30.06 1017.9
05:50 PM EDT SW 12.7 7.00 Clear -- 82.4 42.8 25% NA 80.4 30.06 1017.9
05:35 PM EDT SW 11.5 G 18.4 9.00 Clear -- 82.4 42.8 25% NA 80.4 30.06 1017.9
05:25 PM EDT 13.8 G 20.7 10.00 Clear -- 82.4 42.8 25% NA 80.4 30.07 1018.3
05:15 PM EDT 11.5 10.00 Clear -- 82.4 41.0 23% NA 80.2 30.07 1018.3
05:00 PM EDT 13.8 10.00 Clear -- 82.4 % NA NA 30.07 1018.3
04:35 PM EDT 12.7 10.00 Clear -- 82.4 42.8 25% NA 80.4 30.08 1018.6

Regional Weather Observation

FLORENCE (KFLO)

Clear
69.8 F

DARLINGTON CNTY (KUDG)

Clear
68.0 F

MARION (KMAO)

Clear
69.8 F

MARLBORO CNTY (KBBP)

Clear
66.2 F

CHERAW (KCQW)

Clear
68.0 F

MAXTON (KMEB)

Clear
68.0 F
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