10-Day Weather Forecast - Johnston, SC

Sunny. Highs in the mid 70s. Southwest winds around 5 mph.

Partly cloudy in the evening then becoming mostly clear. Lows in the lower 50s. Southwest winds around 5 mph.

Mostly sunny. Highs in the mid 80s. West winds 5 to 10 mph.

Mostly clear. Lows around 60. Southwest winds around 5 mph.

Sunny. Highs in the mid 80s. Southwest winds 5 to 10 mph.

Clear. Lows in the lower 60s.

Sunny. Highs in the upper 80s.

Mostly clear. Lows in the lower 50s.

Mostly sunny. Cooler with highs in the upper 60s.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 40s.

Partly sunny. Highs in the lower 70s.

Partly cloudy. Lows in the lower 50s.

Mostly sunny. Highs in the upper 70s.

Partly cloudy. Low temperature around 57F. Dew point will be around 53F with an average humidity of 71%. Winds will be 4 mph from the SW.

Sunny. High temperature around 76F. Dew point will be around 54F with an average humidity of 65%. Winds will be 5 mph from the W.

Mostly clear. Low temperature around 53F. Dew point will be around 47F with an average humidity of 58%. Winds will be 2 mph from the NE.

Sunny. High temperature around 61F. Dew point will be around 40F with an average humidity of 55%. Winds will be 6 mph from the NE.

Partly cloudy. Low temperature around 46F. Dew point will be around 36F with an average humidity of 56%. Winds will be 4 mph from the E.