10-Day Weather Forecast - Port Byron, IL

Mostly cloudy in the morning then becoming partly sunny. Highs in the lower 30s. Northwest winds 5 to 10 mph.

Partly cloudy in the evening then becoming mostly clear. Lows around 18. Northwest winds around 5 mph.

Mostly sunny in the morning then becoming mostly cloudy. Highs in the mid 30s. East winds around 5 mph becoming southeast with gusts up to 20 mph in the afternoon.

Mostly cloudy in the evening then clearing. Not as cool. Near steady temperature around 30.

Mostly cloudy. Highs in the upper 40s. Lows in the lower 30s.

Mostly cloudy. Highs in the upper 40s. Lows in the lower 30s.

Mostly sunny. Highs in the upper 40s.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 20s.

Partly cloudy. Highs in the upper 40s. Lows in the mid 30s.

Partly cloudy. Highs in the upper 40s. Lows in the mid 30s.

Mostly cloudy. A chance of rain in the afternoon. Highs in the lower 50s. Chance of rain 40 percent.

Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 45F. Dew point will be around 43F with an average humidity of 85%. Winds will be 6 mph from the S.

Cloudy. High temperature around 50F. Dew point will be around 42F with an average humidity of 78%. Winds will be 8 mph from the SW.

Cloudy. Low temperature around 35F. Dew point will be around 34F with an average humidity of 78%. Winds will be 5 mph from the NW.

Cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 38F. Dew point will be around 29F with an average humidity of 72%. Winds will be 6 mph from the NW.

Partly cloudy. Low temperature around 29F. Dew point will be around 24F with an average humidity of 71%. Winds will be 6 mph from the NW.

Sunny. High temperature around 34F. Dew point will be around 22F with an average humidity of 65%. Winds will be 7 mph from the W.

Clear. Low temperature around 27F. Dew point will be around 21F with an average humidity of 71%. Winds will be 6 mph from the W.