10-Day Weather Forecast - Decatur, IL

Cloudy with a slight chance of snow in the morning then partly sunny in the afternoon. Highs in the upper 20s. Northeast winds 5 to 10 mph. Chance of snow 20 percent.

Partly cloudy. Cooler with lows around 10 above. North winds 5 to 10 mph. Wind chill values as low as zero.

Partly sunny. Highs in the mid 20s. North winds around 5 mph.

Mostly clear in the evening then becoming partly cloudy. Lows around 10 above. West winds around 5 mph.

Mostly cloudy in the morning then becoming partly sunny. Highs in the lower 30s.

Partly cloudy and not as cool. Near steady temperature in the upper 20s.

Partly sunny. Highs in the upper 30s.

Partly cloudy. Lows 15 to 20. Highs around 30.

Partly cloudy. Lows 15 to 20. Highs around 30.

Partly cloudy. Lows 15 to 20. Highs around 30.

Partly cloudy. Highs in the mid 30s. Lows around 20.

Partly cloudy. Highs in the mid 30s. Lows around 20.

Mostly sunny. Highs around 40.

Mostly clear. Low temperature around 25F. Dew point will be around 19F with an average humidity of 69%. Winds will be 6 mph from the SE.

Sunny. High temperature around 36F. Dew point will be around 21F with an average humidity of 61%. Winds will be 6 mph from the SE.

Partly cloudy with a slight chance of rain-snow mix. Chance of precipitation 25%. Low temperature around 31F. Dew point will be around 26F with an average humidity of 73%. Winds will be 7 mph from the SE.

Cloudy with a chance of rain-snow mix. Chance of precipitation 35%. High temperature around 41F. Dew point will be around 30F with an average humidity of 71%. Winds will be 8 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 38F. Dew point will be around 35F with an average humidity of 81%. Winds will be 8 mph from the SE.