10-Day Weather Forecast - Johnston, SC

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

Clear. Lows in the upper 40s. Northeast winds around 5 mph.

Mostly sunny. Highs in the mid 70s. Northeast winds 5 to 10 mph.

Partly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.

Partly sunny. Highs in the mid 70s.

Mostly clear. Lows in the mid 50s.

Sunny. Highs around 80.

Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 50s.

Partly sunny. Highs in the upper 70s.

Mostly cloudy. Lows in the upper 50s.

Mostly cloudy in the morning, then becoming partly sunny. A 40 percent chance of showers. Highs in the mid 70s.

Mostly cloudy. A chance of showers in the evening. Lows in the upper 50s. Chance of rain 40 percent.

Partly sunny. Highs in the upper 70s.

Partly cloudy. Low temperature around 60F. Dew point will be around 61F with an average humidity of 94%. Winds will be 6 mph from the ESE.

Partly cloudy. High temperature around 77F. Dew point will be around 64F with an average humidity of 78%. Winds will be 5 mph from the SE.

Partly cloudy. Low temperature around 62F. Dew point will be around 63F with an average humidity of 93%. Winds will be 7 mph from the SSE.

Partly cloudy. High temperature around 79F. Dew point will be around 65F with an average humidity of 77%. Winds will be 9 mph from the S.

Cloudy. Low temperature around 67F. Dew point will be around 66F with an average humidity of 94%. Winds will be 12 mph from the SSE.