| NWS Forecast for: Johns Island SC Issued by: National Weather Service Charleston, SC Last Update: 6:37 pm EDT Jul 12, 2025 | |
| Overnight: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Light southwest wind. Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 105. Calm wind becoming east around 5 mph in the afternoon. Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 77. East wind around 5 mph becoming calm in the evening. Monday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 102. Calm wind becoming east 5 to 7 mph in the afternoon. Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77. Southeast wind around 6 mph becoming calm in the evening. Tuesday: Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 88. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 77. Chance of precipitation is 60%. Wednesday: A chance of showers and thunderstorms before 8am, then showers and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. High near 88. Chance of precipitation is 80%. Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 78. Thursday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%. Thursday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78. Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79. Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. | |
| Johns Island SC 32.73°N 80.07°W (Elev. 23 ft) | |
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