10-Day Weather Forecast - Johnston, SC

Patchy fog in the morning. Mostly cloudy. Highs in the mid 50s. East winds around 5 mph.

Mostly cloudy. A chance of rain after midnight. Lows in the upper 30s. Light and variable winds becoming north around 5 mph after midnight. Chance of rain 30 percent.

Mostly cloudy with a chance of rain in the morning then partly sunny in the afternoon. Highs in the lower 50s. North winds 5 to 10 mph. Chance of rain 30 percent.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 20s. Northeast winds around 5 mph.

Mostly sunny. Highs in the upper 40s.

Mostly clear. Lows in the lower 30s.

Sunny. Highs in the upper 50s.

Partly cloudy. Lows in the upper 30s.

Mostly sunny. Highs around 60.

Mostly cloudy with a 40 percent chance of rain. Lows in the lower 40s.

Mostly sunny. Highs in the upper 50s.

Mostly clear. Lows in the lower 30s.

Sunny. Highs in the upper 40s.

Clear. Low temperature around 29F. Dew point will be around 18F with an average humidity of 57%. Winds will be 3 mph from the W.

Sunny. High temperature around 44F. Dew point will be around 20F with an average humidity of 50%. Winds will be 3 mph from the W.

Clear. Low temperature around 29F. Dew point will be around 20F with an average humidity of 59%. Winds will be 2 mph from the W.

Sunny. High temperature around 47F. Dew point will be around 24F with an average humidity of 53%. Winds will be 2 mph from the W.

Clear. Low temperature around 31F. Dew point will be around 23F with an average humidity of 63%. Winds will be 1 mph from the W.