10-Day Weather Forecast - Decatur, IL

Mostly sunny. Highs around 80. North winds 15 to 20 mph.

Mostly clear. Lows in the lower 60s. North winds 10 to 15 mph, diminishing to around 5 mph after midnight.

Mostly sunny. Highs in the lower 80s. Northeast winds 5 to 10 mph.

Mostly clear. Lows in the lower 60s. East winds 5 to 10 mph.

Mostly clear. Highs in the mid 80s.

Mostly clear. Lows in the lower 60s.

Mostly clear. Highs in the mid 80s.

Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the mid 60s. Chance of rain 50 percent.

Becoming mostly cloudy in the afternoon. Showers likely in the morning. Highs in the lower 80s. Chance of rain 60 percent.

Partly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 40 percent.

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

Partly cloudy with a chance of thunderstorms. A chance of showers. Lows in the mid 60s. Chance of rain 40 percent.

Partly sunny. Highs in the mid 80s.

Clear with a 30% chance for rain and thunderstorms. Low temperature around 68F. Dew point will be around 67F with an average humidity of 84%. Winds will be 3 mph from the S.

Sunny with a 30% chance for rain and thunderstorms. High temperature around 81F. Dew point will be around 66F with an average humidity of 71%. Winds will be 6 mph from the SW.

Clear with a 30% chance for rain and thunderstorms. Low temperature around 68F. Dew point will be around 66F with an average humidity of 81%. Winds will be 4 mph from the S.

Sunny with a 30% chance for rain and thunderstorms. High temperature around 81F. Dew point will be around 65F with an average humidity of 69%. Winds will be 6 mph from the SW.

Clear with a 35% chance for rain and thunderstorms. Low temperature around 68F. Dew point will be around 67F with an average humidity of 84%. Winds will be 2 mph from the SE.