10-Day Weather Forecast - Vandalia, IL

Sunny. Highs in the upper 70s. East winds around 5 mph becoming southwest in the afternoon.

Mostly clear. Not as cool with lows in the upper 50s. South winds 5 to 10 mph.

Mostly sunny. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

Partly cloudy. A slight chance of showers in the evening. Much cooler with lows in the upper 30s. Chance of rain 20 percent.

Sunny. Much cooler with highs in the mid 50s.

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 30s.

Mostly cloudy. Highs around 60. Lows around 40.

Mostly cloudy. Highs around 60. Lows around 40.

Mostly cloudy. Highs around 60. Lows around 40.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s.

Sunny. A slight chance of showers in the afternoon. Not as cool with highs in the lower 70s. Chance of rain 20 percent.

Mostly clear with a chance of rain. Chance of precipitation 45%. Low temperature around 45F. Dew point will be around 42F with an average humidity of 57%. Winds will be 9 mph from the NW.

Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 50F. Dew point will be around 30F with an average humidity of 49%. Winds will be 9 mph from the NE.

Cloudy. Low temperature around 33F. Dew point will be around 26F with an average humidity of 58%. Winds will be 8 mph from the NE.

Cloudy. High temperature around 48F. Dew point will be around 27F with an average humidity of 54%. Winds will be 7 mph from the E.

Cloudy. Low temperature around 38F. Dew point will be around 31F with an average humidity of 64%. Winds will be 4 mph from the E.

Cloudy. High temperature around 55F. Dew point will be around 36F with an average humidity of 61%. Winds will be 4 mph from the SE.

Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 44F. Dew point will be around 40F with an average humidity of 70%. Winds will be 3 mph from the SE.