10-Day Weather Forecast - Petersburg, IL

Mostly cloudy and breezy. Not as cool with highs in the lower 50s. South winds 15 to 25 mph with gusts up to 35 mph.

Mostly cloudy. Not as cool with lows in the upper 20s. West winds 10 to 15 mph becoming northwest 5 to 10 mph after midnight.

Mostly sunny. Highs in the mid 40s. Northwest winds 5 to 10 mph.

Rain and snow likely. Light snow accumulation possible. Lows in the upper 20s. Northeast winds 5 to 10 mph. Chance of precipitation 70 percent.

Mostly sunny. Highs in the mid 40s. Northeast winds 5 to 10 mph becoming northwest in the afternoon.

Mostly clear. Lows in the upper 20s. Highs in the lower 60s.

Mostly clear. Lows in the upper 20s. Highs in the lower 60s.

Mostly clear. Lows in the mid 30s.

Partly cloudy. Highs in the mid 50s. Lows in the mid 20s.

Partly cloudy. Highs in the mid 50s. Lows in the mid 20s.

Partly sunny. A chance of rain and snow in the afternoon. Much cooler with highs around 40. Chance of precipitation 30 percent.

Mostly cloudy with a 50 percent chance of snow. Lows in the mid 20s.

A chance of snow in the morning. Partly sunny with a chance of rain. Highs in the lower 40s. Chance of precipitation 30 percent.

Partly cloudy with a slight chance of rain-snow mix. Chance of precipitation 30%. Low temperature around 19F. Dew point will be around 23F with an average humidity of 78%. Winds will be 6 mph from the E.

Sunny with a chance of rain-snow mix. Chance of precipitation 40%. High temperature around 39F. Dew point will be around 21F with an average humidity of 66%. Winds will be 4 mph from the SE.

Mostly clear with a chance of rain-snow mix. Chance of precipitation 35%. Low temperature around 26F. Dew point will be around 23F with an average humidity of 76%. Winds will be 3 mph from the S.

Mostly sunny. High temperature around 45F. Dew point will be around 30F with an average humidity of 69%. Winds will be 5 mph from the S.

Partly cloudy. Low temperature around 37F. Dew point will be around 33F with an average humidity of 77%. Winds will be 7 mph from the S.

Cloudy. High temperature around 57F. Dew point will be around 41F with an average humidity of 70%. Winds will be 11 mph from the S.

Mostly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 49F. Dew point will be around 46F with an average humidity of 79%. Winds will be 12 mph from the S.