10-Day Weather Forecast - Decatur, IL

Mostly sunny. Highs in the mid 80s. Southeast winds around 5 mph.

Mostly clear. Lows in the upper 60s. Southeast winds around 5 mph.

Sunny. Highs in the upper 80s. South winds around 5 mph.

Mostly clear. Lows in the upper 60s.

Sunny. Highs in the upper 80s.

Mostly clear. Lows around 70.

Sunny. Highs in the upper 80s.

Mostly clear in the evening then becoming partly cloudy. Lows around 70.

Partly cloudy. Highs in the upper 80s. Lows around 70.

Partly cloudy. Highs in the upper 80s. Lows around 70.

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

Partly cloudy with a 70% chance for rain and thunderstorms. Low temperature around 73F. Dew point will be around 72F with an average humidity of 86%. Winds will be 3 mph from the S.

Mostly sunny with a 60% chance for rain and thunderstorms. High temperature around 85F. Dew point will be around 69F with an average humidity of 69%. Winds will be 4 mph from the NW.

Clear with a 45% chance for rain and thunderstorms. Low temperature around 70F. Dew point will be around 68F with an average humidity of 78%. Winds will be 2 mph from the W.

Mostly sunny with a chance of rain. Chance of precipitation 35%. High temperature around 85F. Dew point will be around 67F with an average humidity of 66%. Winds will be 2 mph from the W.

Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 71F. Dew point will be around 68F with an average humidity of 76%. Winds will be 2 mph from the S.

Mostly sunny with a 35% chance for rain and thunderstorms. High temperature around 87F. Dew point will be around 69F with an average humidity of 66%. Winds will be 2 mph from the SW.

Mostly clear with a 35% chance for rain and thunderstorms. Low temperature around 72F. Dew point will be around 69F with an average humidity of 76%. Winds will be 2 mph from the SW.