Local Forecast

Johns Island, SC Weather Forecast & Alerts

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

No Active Alerts

Hour-by-Hour  Current Observation

Monday 5:15 AM EDTMonday 5:15 AM

°F °C
Regional Observations →
71°F

Clear

  • 91° / 77° High / Low
  • 71° Feels Like
  • 0% Chance of Rain

Wind

0 mph

N

UV Index

0

None

Humidity

94%

Dew 69°F

Sun

6:11 AM · 8:26 PM

Rise · Set

Source: CHARLESTON/EXEC (KJZI). Slider scrubs the next 12 hours.

5-Day Outlook

Through Friday

Local Radar →

Today

91° 77°

Mostly Cloudy

Overnight: Mostly Cloudy

Detailed forecast

Today

Partly sunny, with a high near 91. Southwest wind 3 to 8 mph.

Night

Mostly cloudy, with a low around 76. South wind 1 to 7 mph.

Tuesday

89° 75°

Mostly Cloudy

Overnight: Mostly Cloudy

Detailed forecast

Tuesday

Partly sunny, with a high near 88. Southeast wind 1 to 8 mph.

Night

Mostly cloudy, with a low around 75. South wind 2 to 7 mph.

Wednesday

89° 73°

Partly Sunny

Overnight: Partly Cloudy

Detailed forecast

Wednesday

Mostly sunny, with a high near 89.

Night

Partly cloudy, with a low around 76.

Thursday

89° 75°

Isolated T-storm

Overnight: Chance of Showers

Detailed forecast

Thursday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 20%.

Night

A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Chance of precipitation is 20%.

Friday

91° 75°

Chance of Thunderstorms

Overnight: Chance of Thunderstorms

Detailed forecast

Friday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 20%.

Night

A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76. Chance of precipitation is 20%.

Johns Island, SC Weather Analysis Tools