Wind
0 mph
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Local Forecast
Johns Island, SC Weather Forecast & Alerts
Current conditions, 5-day forecast, active weather alerts for Johns Island, SC
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Hour-by-Hour Current Observation
Monday 2:35 PM EDTMonday 2:35 PM
°F
°C
68°F
Clear
- 71° / 48° High / Low
- 68° Feels Like
- 0% Chance of Rain
UV Index
6
High
Humidity
49%
Dew 48°F
Sun
7:29 AM · 6:40 PM
Rise · Set
Source: CHARLESTON/EXEC (KJZI). Slider scrubs the next 12 hours.
5-Day Outlook
Through Friday
Tonight
48°
Mostly Clear
Detailed forecast
Tonight
Clear, with a low around 52. North wind 6 to 9 mph.
Tuesday
75° 53°
Sunny
Overnight: Clear
Detailed forecast
Tuesday
Sunny, with a high near 74. North wind around 10 mph.
Night
Mostly clear, with a low around 54. North wind around 8 mph.
Wednesday
75° 51°
Sunny
Overnight: Clear
Detailed forecast
Wednesday
Mostly sunny, with a high near 73. North wind 7 to 10 mph.
Night
Mostly clear, with a low around 53.
Thursday
73° 53°
Sunny
Overnight: Clear
Detailed forecast
Thursday
Sunny, with a high near 73.
Night
Clear, with a low around 54.
Friday
73° 55°
Sunny
Overnight: Mostly Clear
Detailed forecast
Friday
Sunny, with a high near 72.
Night
Mostly clear, with a low around 56.
Johns Island, SC Weather Analysis Tools
Regional Radar
Composite reflectivity with Lightning overlay.
Regional Observations
Regional & historic weather conditions near Johns Island, SC.
Active Alerts
Per-location alert detail and NWS source feeds.
Storm Reports
Recent storm reports including wind, hail, and tornadoes.
Model Analysis
Interactive forecast model guidance.
Satellite Imagery
GOES-East and GOES-West, visible and infrared.