Johns Island, SC Current Weather Conditions

Current weather observations and 72-hour history for Johns Island, SC. • View 5-Day Forecast ›

▼Current Conditions — Johns Island, SC

CHARLESTON/EXEC (KJZI)

Clear

91.4 F

Humidity:	59%
Wind Speed:	17.2 G 24.2 mph
Barometer:	30.02 in
Dewpoint:	75.2 F
Visibility:	10.00 mi
Precip:	--
Heat Index:	102.7 F
Wind Chill:	NA

Jul 21 2026, 12:15 PM EDT

Alert Subscriptions

Severe Weather

Tornado, flood & storm warnings

Observations

Station conditions & threshold alerts

Daily Forecast

Morning summary delivered daily

Lightning

Real-time strike alerts

▼State Weather Snapshot — South Carolina

Temperature

Dewpoint

Wind Speed

Full Interactive Observation Map →

▼Radar — South Carolina

Loading radar…

Active Alerts Lightning

Full Interactive Radar Map →

▼Hourly Observation History — Johns Island, SC

Time	Wind (mph)	Vis (mi)	Weather	Precip (in)	Temperature (F)		Relative Humidity	Wind Chill (F)	Heat Index (F)	Pressure
Time	Wind (mph)	Vis (mi)	Weather	Precip (in)	Air	Dwpt	Relative Humidity	Wind Chill (F)	Heat Index (F)	altimeter (in)	sea level (mb)
12:15 PM EDT	17.2 G 24.2	10.00	Clear	--	91.4	75.2	59%	NA	102.7	30.02	1016.6
11:55 AM EDT	15.0 G 20.8	10.00	Clear	--	89.6	75.2	63%	NA	100.2	30.02	1016.6
11:35 AM EDT	S 16.1	9.00	Mostly Clear	--	89.6	75.2	63%	NA	100.2	30.02	1016.6
11:15 AM EDT	SW 13.9 G 25.3	9.00	Partly Cloudy	--	89.6	77.0	67%	NA	102.6	30.02	1016.6
10:55 AM EDT	13.9 G 23.0	9.00	Partly Cloudy	--	89.6	78.8	71%	NA	105.3	30.02	1016.6
10:35 AM EDT	S 16.1	9.00	Mostly Cloudy	--	89.6	78.8	71%	NA	105.3	30.01	1016.3
10:15 AM EDT	12.8 G 18.3	9.00	Mostly Cloudy	--	89.6	78.8	71%	NA	105.3	30.01	1016.3
09:55 AM EDT	SW 12.8 G 21.9	9.00	Mostly Cloudy	--	87.8	78.8	75%	NA	102.4	30.01	1016.3
09:35 AM EDT	11.4 G 21.9	8.00	Mostly Cloudy	--	89.6	80.6	75%	NA	108.1	30.01	1016.3
09:15 AM EDT	11.4 G 17.2	9.00	Partly Cloudy	--	87.8	78.8	75%	NA	102.4	30.01	1016.3
08:55 AM EDT	S 16.1	8.00	Mostly Cloudy	--	86.0	78.8	79%	NA	99.3	30.01	1016.3
08:35 AM EDT	11.4	9.00	Mostly Cloudy	--	86.0	78.8	79%	NA	99.3	30.01	1016.3
08:15 AM EDT	11.4 G 17.2	9.00	Clear	--	86.0	78.8	79%	NA	99.3	30.01	1016.3
07:55 AM EDT	11.4 G 18.3	8.00	Clear	--	86.0	78.8	79%	NA	99.3	30.00	1015.9
07:15 AM EDT	9.2	8.00	Cloudy	--	84.2	78.8	84%	NA	96.1	29.99	1015.6
06:55 AM EDT	8.1	8.00	NULL	--	84.2	78.8	84%	NA	96.1	29.99	1015.6
11:35 PM EDT	S 13.9	10.00	Mostly Cloudy	--	84.2	77.0	79%	NA	94.1	29.99	1015.6
11:15 PM EDT	13.9	10.00	Mostly Cloudy	--	84.2	77.0	79%	NA	94.1	30.00	1015.9
10:55 PM EDT	11.4 G 17.2	10.00	Mostly Cloudy	--	84.2	77.0	79%	NA	94.1	29.99	1015.6
10:35 PM EDT	S 11.4 G 17.2	10.00	Partly Cloudy	--	84.2	77.0	79%	NA	94.1	29.99	1015.6
10:15 PM EDT	S 11.4 G 18.3	10.00	Mostly Clear	--	84.2	77.0	79%	NA	94.1	29.99	1015.6
09:55 PM EDT	S 11.4	10.00	Partly Cloudy	--	84.2	77.0	79%	NA	94.1	29.99	1015.6
09:35 PM EDT	S 10.3	10.00	Partly Cloudy	--	84.2	77.0	79%	NA	94.1	29.98	1015.2
09:15 PM EDT	8.1	10.00	Mostly Cloudy	--	84.2	77.0	79%	NA	94.1	29.98	1015.2
08:55 PM EDT	S 9.2	10.00	Partly Cloudy	--	84.2	75.2	74%	NA	92.5	29.97	1014.9
08:35 PM EDT	S 6.9 G 12.8	9.00	Clear	--	84.2	77.0	79%	NA	94.1	29.96	1014.6
07:55 PM EDT	11.4	9.00	Clear	--	86.0	77.0	75%	NA	97.2	29.96	1014.6
07:35 PM EDT	S 12.8	9.00	Clear	--	86.0	77.0	75%	NA	97.2	29.96	1014.6
07:15 PM EDT	S 10.3	10.00	Clear	--	87.8	77.0	70%	NA	99.9	29.97	1014.9
06:55 PM EDT	S 15.0	10.00	Clear	--	87.8	77.0	70%	NA	99.9	29.96	1014.6
06:35 PM EDT	9.2 G 19.7	10.00	Clear	--	87.8	77.0	70%	NA	99.9	29.96	1014.6
05:55 PM EDT	12.8 G 21.9	10.00	Clear	--	86.0	77.0	75%	NA	97.2	29.95	1014.2
05:35 PM EDT	10.3	10.00	Clear	--	86.0	77.0	75%	NA	97.2	29.95	1014.2
05:15 PM EDT	13.9	10.00	Clear	--	86.0	77.0	75%	NA	97.2	29.95	1014.2
04:35 PM EDT	11.4	10.00	NULL	--	86.0	78.8	79%	NA	99.3	29.96	1014.6
04:15 PM EDT	10.3	9.00	Clear	--	86.0	78.8	79%	NA	99.3	29.96	1014.6
03:55 PM EDT	11.4	10.00	Clear	--	86.0	77.0	75%	NA	97.2	29.97	1014.9
03:35 PM EDT	11.4	10.00	Clear	--	86.0	77.0	75%	NA	97.2	29.97	1014.9
03:15 PM EDT	S 10.3 G 18.3	10.00	Clear	--	87.8	77.0	70%	NA	99.9	29.97	1014.9
02:55 PM EDT	S 15.0	10.00	Clear	--	91.4	78.8	67%	NA	107.8	29.98	1015.2
02:35 PM EDT	S 13.9	9.00	Clear	--	89.6	78.8	71%	NA	105.3	29.98	1015.2
01:55 PM EDT	S 9.2	10.00	Clear	--	87.8	78.8	75%	NA	102.4	29.99	1015.6
01:35 PM EDT	S 11.4	10.00	Clear	--	87.8	78.8	75%	NA	102.4	30.00	1015.9
01:15 PM EDT	S 13.9	10.00	Mostly Clear	--	89.6	78.8	71%	NA	105.3	30.00	1015.9
12:35 PM EDT	S 12.8 G 19.7	10.00	Clear	--	89.6	78.8	71%	NA	105.3	29.99	1015.6
12:15 PM EDT	11.4	10.00	Mostly Clear	--	91.4	78.8	67%	NA	107.8	30.00	1015.9
11:55 AM EDT	S 11.4	10.00	Partly Cloudy	--	89.6	78.8	71%	NA	105.3	29.99	1015.6
11:15 AM EDT	S 10.3	10.00	Clear	--	89.6	78.8	71%	NA	105.3	29.99	1015.6
10:55 AM EDT		10.00	Mostly Clear	--	NULL		%	NA	NA		M
10:35 AM EDT	SW 11.4	10.00	Partly Cloudy	--	89.6	78.8	71%	NA	105.3	29.99	1015.6
10:15 AM EDT	S 12.8 G 18.3	10.00	Partly Cloudy	--	87.8	78.8	75%	NA	102.4	29.99	1015.6
09:55 AM EDT		10.00	Mostly Clear	--	NULL		%	NA	NA		M
09:35 AM EDT	SW 10.3	10.00	Mostly Cloudy	--	87.8	77.0	70%	NA	99.9	29.98	1015.2
09:15 AM EDT	10.3	10.00	Partly Cloudy	--	87.8	77.0	70%	NA	99.9	29.98	1015.2
08:55 AM EDT	SW 9.2 G 18.3	10.00	Partly Cloudy	--	86.0	77.0	75%	NA	97.2	29.98	1015.2
08:35 AM EDT	SW 10.3 G 16.1	10.00	Clear	--	86.0	77.0	75%	NA	97.2	29.98	1015.2
08:15 AM EDT	6.9	10.00	Mostly Clear	--	86.0	77.0	75%	NA	97.2	29.97	1014.9
07:55 AM EDT	6.9	10.00	Mostly Clear	--	86.0	77.0	75%	NA	97.2	29.97	1014.9
07:35 AM EDT	0.0	10.00	Clear	--	84.2	77.0	79%	NA	94.1	29.97	1014.9
07:15 AM EDT	0.0	10.00	Clear	--	82.4	77.0	84%	NA	90.9	29.97	1014.9
06:55 AM EDT	0.0	10.00	Clear	--	82.4	77.0	84%	NA	90.9	29.97	1014.9
06:35 AM EDT	0.0	10.00	Clear	--	80.6	77.0	89%	NA	87.1	29.97	1014.9
06:15 AM EDT	0.0	10.00	Mostly Clear	--	82.4	77.0	84%	NA	90.9	29.97	1014.9
05:55 AM EDT	SW 4.7	10.00	Clear	--	82.4	77.0	84%	NA	90.9	29.97	1014.9
05:35 AM EDT	4.7	10.00	Clear	--	82.4	77.0	84%	NA	90.9	29.96	1014.6
05:15 AM EDT	4.7	10.00	Mostly Clear	--	82.4	77.0	84%	NA	90.9	29.96	1014.6
04:55 AM EDT	SW 3.4	10.00	Mostly Clear	--	82.4	77.0	84%	NA	90.9	29.96	1014.6
04:35 AM EDT	SW 8.1	10.00	Mostly Clear	--	82.4	77.0	84%	NA	90.9	29.96	1014.6
04:15 AM EDT	SW 5.8	10.00	Clear	--	82.4	77.0	84%	NA	90.9	29.96	1014.6
03:55 AM EDT	SW 5.8	10.00	Mostly Clear	--	82.4	77.0	84%	NA	90.9	29.95	1014.2
03:35 AM EDT	SW 8.1	10.00	Mostly Clear	--	82.4	77.0	84%	NA	90.9	29.96	1014.6
03:15 AM EDT	SW 6.9 G 13.9	10.00	Mostly Clear	--	84.2	77.0	79%	NA	94.1	29.96	1014.6