10-Day Weather Forecast - Cortland, IL

Mostly cloudy. Highs in the upper 30s. Southwest winds 10 to 15 mph becoming west in the afternoon. Gusts up to 25 mph.

Clear. Lows around 13. West winds 10 to 15 mph with gusts up to 25 mph.

Sunny. Highs in the upper 20s. Northwest winds 5 to 10 mph becoming west in the afternoon.

Mostly cloudy. Lows around 19. South winds 5 to 10 mph.

Mostly cloudy. Highs in the upper 30s.

Mostly cloudy. Near steady temperature in the mid 30s.

Mostly cloudy. Highs in the mid 40s.

Mostly cloudy. Lows around 30.

Cloudy. Highs in the upper 40s.

Cloudy. A chance of rain in the evening. Near steady temperature in the lower 40s. Chance of precipitation 30 percent.

Mostly cloudy. Highs in the upper 50s.

Mostly cloudy. Lows in the mid 30s.

Mostly cloudy. Highs in the upper 40s.

Partly cloudy. Low temperature around 39F. Dew point will be around 37F with an average humidity of 84%. Winds will be 3 mph from the S.

Partly cloudy. High temperature around 43F. Dew point will be around 35F with an average humidity of 77%. Winds will be 2 mph from the NW.

Mostly cloudy. Low temperature around 31F. Dew point will be around 29F with an average humidity of 79%. Winds will be 4 mph from the NW.

Partly cloudy. High temperature around 35F. Dew point will be around 25F with an average humidity of 71%. Winds will be 5 mph from the N.

Mostly clear. Low temperature around 27F. Dew point will be around 23F with an average humidity of 75%. Winds will be 3 mph from the N.