10-Day Weather Forecast - Johnston, SC

Rain. Much cooler with highs in the upper 60s. Temperature falling into the mid 50s in the afternoon. West winds 5 to 10 mph becoming north 10 to 15 mph in the afternoon. Chance of rain 90 percent.

Mostly clear. A chance of rain in the evening. Much cooler with lows in the upper 30s. Northeast winds 5 to 10 mph. Chance of rain 30 percent.

Sunny. Highs in the mid 60s. East winds around 5 mph becoming south around 5 mph in the afternoon.

Mostly clear. Lows in the mid 40s.

Sunny. Highs in the upper 70s.

Mostly clear. Lows in the lower 50s.

Partly sunny. A chance of rain in the morning then rain likely in the afternoon. Highs in the upper 70s. Chance of rain 60 percent.

Rain likely. Lows in the upper 50s. Chance of rain 60 percent.

Mostly cloudy in the morning then becoming partly sunny. A 50 percent chance of rain. Highs in the upper 60s.

Mostly cloudy. Much cooler with lows in the mid 30s.

Partly sunny. Highs in the mid 50s.

Mostly clear. Low temperature around 34F. Dew point will be around 20F with an average humidity of 45%. Winds will be 3 mph from the E.

Partly cloudy. High temperature around 59F. Dew point will be around 25F with an average humidity of 44%. Winds will be 3 mph from the S.

Partly cloudy. Low temperature around 41F. Dew point will be around 32F with an average humidity of 56%. Winds will be 2 mph from the S.

Partly cloudy. High temperature around 64F. Dew point will be around 38F with an average humidity of 58%. Winds will be 2 mph from the W.

Clear. Low temperature around 45F. Dew point will be around 42F with an average humidity of 70%. Winds will be 1 mph from the S.

Mostly sunny. High temperature around 69F. Dew point will be around 45F with an average humidity of 65%. Winds will be 3 mph from the W.

Clear. Low temperature around 50F. Dew point will be around 47F with an average humidity of 71%. Winds will be 3 mph from the SW.