10-Day Weather Forecast - Johnston City, IL

Mostly cloudy in the morning then becoming mostly sunny. Cooler with highs in the lower 40s. Temperature falling into the lower 30s in the afternoon. Northwest winds 15 to 20 mph with gusts up to 30 mph.

Mostly clear. Much cooler with lows around 19. Northwest winds 10 to 15 mph.

Sunny. Highs in the lower 30s. Northwest winds 5 to 10 mph becoming west in the afternoon.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 20s. Temperature rising into the lower 30s after midnight. South winds 10 to 15 mph.

Mostly cloudy. Highs in the mid 40s. Lows in the lower 20s.

Mostly cloudy. Highs in the mid 40s. Lows in the lower 20s.

Partly sunny. Cooler with highs around 30.

Partly cloudy in the evening then clearing. Cold with lows 10 to 15.

Mostly clear. Highs in the lower 30s. Lows around 20.

Mostly clear. Highs in the lower 30s. Lows around 20.

Mostly clear. Highs in the mid 30s. Lows 10 to 15.

Mostly clear. Highs in the mid 30s. Lows 10 to 15.

Mostly clear. Highs in the mid 30s. Lows 10 to 15.

Clear. Low temperature around 27F. Dew point will be around 14F with an average humidity of 56%. Winds will be 4 mph from the S.

Partly cloudy. High temperature around 42F. Dew point will be around 24F with an average humidity of 59%. Winds will be 8 mph from the S.

Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 36F. Dew point will be around 30F with an average humidity of 75%. Winds will be 4 mph from the S.

Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 45F. Dew point will be around 35F with an average humidity of 75%. Winds will be 5 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 42F. Dew point will be around 38F with an average humidity of 81%. Winds will be 3 mph from the SE.