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Current Weather Conditions for Johnston, SC

A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.
90°F

Conditions

Wind: 7 mph SW
Humidity: 54%
Probability of Precipitation: 18%

Hourly Forcast (next 12 hours)

11 PM 12 AM 1 AM 2 AM 3 AM 4 AM 5 AM 6 AM 7 AM 8 AM 9 AM 10 AM 11 AM
90° 88° 84° 82° 80° 79° 78° 78° 77° 76° 76° 75° 76°

Upcoming Week

Day Forecast High Low
Tonight
Slight Chance Showers And Thunderstorms then Mostly Clear
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.
90°F 74°F
Saturday
Sunny
Sunny, with a high near 98. Heat index values as high as 104. West wind 5 to 12 mph.
90°F 74°F
Saturday Night
Mostly Clear
Mostly clear, with a low around 77. Heat index values as high as 101. West wind 6 to 10 mph.
90°F 74°F
Sunday
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 98. Heat index values as high as 105. West wind 7 to 10 mph. Chance of precipitation is 20%.
90°F 74°F
Sunday Night
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77. West wind 5 to 9 mph. Chance of precipitation is 20%.
90°F 74°F
Monday
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 98. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
90°F 74°F
Monday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.
90°F 74°F
Tuesday
Showers And Thunderstorms Likely
Showers and thunderstorms likely after 8am. Partly sunny, with a high near 92. Chance of precipitation is 70%.
90°F 74°F
Tuesday Night
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.
90°F 74°F
Wednesday
Slight Chance Rain Showers then Chance Showers And Thunderstorms
A slight chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 40%.
90°F 74°F
Wednesday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71. Chance of precipitation is 40%.
90°F 74°F
Thursday
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
90°F 74°F
Thursday Night
Chance Showers And Thunderstorms then Mostly Clear
A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 72. Chance of precipitation is 30%.
90°F 74°F
Friday
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95.
90°F 74°F
Data provided by weather.gov