10-Day Weather Forecast - Vandalia, IL

Numerous thunderstorms. Numerous showers. Some thunderstorms may produce heavy rainfall. Highs around 80. Southeast winds 5 to 10 mph becoming south 10 to 15 mph in the afternoon. Chance of rain 70 percent.

Mostly cloudy. Showers and thunderstorms mainly in the evening. Some thunderstorms may produce heavy rainfall. Lows in the mid 60s. Southwest winds 10 to 15 mph becoming west after midnight. Chance of rain 90 percent.

Mostly cloudy in the morning then becoming partly sunny. A slight chance of showers and thunderstorms. Highs in the mid 70s. North winds 5 to 10 mph. Chance of rain 20 percent.

Partly cloudy. Lows in the upper 50s.

Mostly clear. Highs in the upper 70s. Lows around 60.

Mostly clear. Highs in the upper 70s. Lows around 60.

Mostly clear. Highs in the upper 70s. Lows around 60.

Mostly clear in the evening then partly cloudy with a slight chance of showers after midnight. Lows around 60. Chance of rain 20 percent.

Mostly sunny. A slight chance of showers in the morning then a chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 30 percent.

A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows around 60. Chance of rain 20 percent.

Mostly sunny. A slight chance of showers in the morning then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 30 percent.

Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 67F. Dew point will be around 64F with an average humidity of 78%. Winds will be 3 mph from the S.

Partly cloudy with a 45% chance for rain and thunderstorms. High temperature around 83F. Dew point will be around 69F with an average humidity of 77%. Winds will be 8 mph from the SW.

Partly cloudy with a 45% chance for rain and thunderstorms. Low temperature around 71F. Dew point will be around 69F with an average humidity of 80%. Winds will be 6 mph from the S.

Partly cloudy with a 55% chance for rain and thunderstorms. High temperature around 85F. Dew point will be around 71F with an average humidity of 76%. Winds will be 8 mph from the SW.

Mostly clear with a 35% chance for rain and thunderstorms. Low temperature around 73F. Dew point will be around 70F with an average humidity of 76%. Winds will be 9 mph from the S.

Mostly sunny with a 45% chance for rain and thunderstorms. High temperature around 86F. Dew point will be around 72F with an average humidity of 76%. Winds will be 10 mph from the SW.

Clear with a 40% chance for rain and thunderstorms. Low temperature around 74F. Dew point will be around 71F with an average humidity of 75%. Winds will be 9 mph from the SW.