Weather in Johnston, SC
Updated 2026-08-11 11:15 local time · ZIP codes 29832
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
92°4% rain96°2% rain94°2% rain95°2% rain96°2% rain96°2% rain97°2% rain
96°2% rain95°4% rain91°1% rain
86°3% rain84°3% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 4%).
It feels like 107°F with winds near 8 mph.
91°F, 1% rain chance and 11 mph wind.
Visibility is around 6 mi; gusts may reach 18 mph.
Current temperature is 92°F, wind 8 mph, rain chance up to 4%.
UV index is 6. Sunscreen, shade and protective clothing are recommended.
Johnston weather today
Sunny and 92°F in Johnston, SC. Today's high is 97°F with a 5% rain chance. Winds are around 8 mph with gusts near 9 mph. Relative humidity is 62%, pressure is 30.08 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Johnston
Sunrise is at 06:46 AM and sunset is at 08:18 PM. Tomorrow's forecast calls for Sunny with a high near 101°F and a low near 76°F. The maximum rain chance is 36%.