National Weather Service United States Department of Commerce

Strong storm system to bring unsettled weather from Gulf Coast to Great Lakes through Wednesday

A strong storm system will bring potential for severe weather, heavy rainfall and flooding, and heavy snow from the Gulf Coast to the Great Lakes through Wednesday. Severe storms are possible Tuesday across the Gulf Coast states with damaging winds as the primary threat, however a tornadoes cannot be ruled out. Flash flooding is also possible across parts of the Southeast through Wednesday.
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Current Conditions

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Johns Island SC

7 Day Forecast

For More Weather Information:

Charleston, SC Local Forecast Office

Overnight

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

Low: 47 °F

Tuesday

Rain Chance for Measurable Precipitation 80%

Rain

High: 67 °F

Tuesday
Night

Showers Chance for Measurable Precipitation 90%

Showers

Low: 60 °F

Wednesday

Showers Chance for Measurable Precipitation 90%

Showers

High: 72 °F

Wednesday
Night

Showers Likely Chance for Measurable Precipitation 60%

Showers
Likely

Low: 52 °F

Christmas
Day

Sunny

Sunny

High: 58 °F

Thursday
Night

Mostly Clear

Mostly
Clear

Low: 40 °F

Friday

Sunny

Sunny

High: 61 °F

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 46 °F

Detailed Forecast

  • Overnight A chance of drizzle, then a chance of rain or drizzle after 4am. Areas of dense fog. Otherwise, cloudy, with a low around 47. Northeast wind around 8 mph. Chance of precipitation is 30%.
  • Tuesday A chance of rain and thunderstorms, then showers and possibly a thunderstorm after 2pm. Areas of dense fog before 11am. High near 67. Light and variable wind becoming south 5 to 8 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Tuesday Night Showers. Patchy fog after midnight. Low around 60. Southeast wind 6 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
  • Wednesday Showers and possibly a thunderstorm. High near 72. South wind 13 to 16 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
  • Wednesday Night Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 52. South wind 11 to 14 mph becoming west after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Christmas Day Sunny, with a high near 58.
  • Thursday Night Mostly clear, with a low around 40.
  • Friday Sunny, with a high near 61.
  • Friday Night Partly cloudy, with a low around 46.
  • Saturday Mostly sunny, with a high near 64.
  • Saturday Night Partly cloudy, with a low around 47.
  • Sunday Mostly sunny, with a high near 59.
  • Sunday Night Partly cloudy, with a low around 42.
  • Monday Mostly sunny, with a high near 60.