10-Day Weather Forecast - Petersburg, IL

Mostly sunny in the morning then mostly cloudy with a chance of showers in the afternoon. Breezy and much warmer with highs in the lower 80s. South winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 30 percent.

A chance of thunderstorms. Showers likely mainly in the evening. Lows in the mid 60s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent.

Mostly cloudy with a chance of showers and thunderstorms in the morning then partly sunny in the afternoon. Highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 60s.

Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.

Showers likely with a chance of thunderstorms in the evening then showers likely after midnight. Lows in the mid 60s. Chance of rain 60 percent.

Showers likely with a chance of thunderstorms. Highs around 80. Chance of rain 70 percent.

Showers likely. Lows in the lower 60s. Chance of rain 70 percent.

Mostly cloudy in the morning then becoming partly sunny. A chance of showers. Highs in the upper 70s. Chance of rain 50 percent.

Partly cloudy with a chance of showers in the evening then mostly clear after midnight. Lows in the upper 50s. Chance of rain 50 percent.

Mostly sunny with a chance of showers. Highs around 80. Chance of rain 40 percent.

Mostly cloudy with a 75% chance for rain and thunderstorms. Low temperature around 50F. Dew point will be around 53F with an average humidity of 67%. Winds will be 10 mph from the S.

Partly cloudy with a chance of rain. Chance of precipitation 55%. High temperature around 60F. Dew point will be around 36F with an average humidity of 52%. Winds will be 10 mph from the NW.

Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 40F. Dew point will be around 31F with an average humidity of 51%. Winds will be 4 mph from the NW.

Sunny. High temperature around 61F. Dew point will be around 32F with an average humidity of 47%. Winds will be 2 mph from the SE.

Clear. Low temperature around 45F. Dew point will be around 36F with an average humidity of 55%. Winds will be 4 mph from the SE.

Sunny. High temperature around 67F. Dew point will be around 42F with an average humidity of 56%. Winds will be 9 mph from the S.

Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 53F. Dew point will be around 46F with an average humidity of 62%. Winds will be 10 mph from the S.