10-Day Weather Forecast - Vandalia, IL

Sunny. Not as cool with highs in the mid 30s. South winds 5 to 10 mph.

Mostly cloudy and not as cool. Near steady temperature in the upper 20s. Southwest winds 5 to 10 mph.

Partly sunny. Highs in the mid 30s. West winds around 5 mph becoming north in the afternoon.

Mostly cloudy. A chance of snow after midnight. Lows in the mid 20s. East winds around 5 mph. Chance of snow 30 percent.

Mostly cloudy. A chance of snow and rain in the morning then a slight chance of snow in the afternoon. Highs in the lower 30s. Chance of precipitation 40 percent.

Mostly cloudy. Cooler with lows around 10 above. Wind chill values as low as 5 above.

Mostly sunny. Highs in the upper 20s.

Mostly cloudy. Near steady temperature in the lower 20s. Temperature rising into the mid 20s after midnight.

Mostly sunny. Not as cool with highs around 40.

Mostly cloudy. A slight chance of rain after midnight. Lows in the upper 20s. Temperature rising into the mid 30s after midnight. Chance of rain 20 percent.

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

Mostly cloudy. Lows around 20.

Partly sunny. A slight chance of freezing rain in the afternoon. Cooler with highs in the lower 30s. Chance of precipitation 20 percent.

Partly cloudy. Low temperature around 24F. Dew point will be around 20F with an average humidity of 75%. Winds will be 4 mph from the NW.

Sunny. High temperature around 34F. Dew point will be around 18F with an average humidity of 60%. Winds will be 3 mph from the W.

Clear. Low temperature around 24F. Dew point will be around 20F with an average humidity of 74%. Winds will be 3 mph from the NW.

Sunny. High temperature around 36F. Dew point will be around 21F with an average humidity of 63%. Winds will be 2 mph from the SW.

Clear with a slight chance of rain-snow mix. Chance of precipitation 25%. Low temperature around 31F. Dew point will be around 25F with an average humidity of 76%. Winds will be 3 mph from the S.