10-Day Weather Forecast - Cortland, IL

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  • |0°F
    70% Chance of Snow
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    Tonight

    0°F

    Mostly cloudy. Snow likely early in the evening then a chance of snow after midnight. A slight chance of snow late. Snow accumulation around half an inch. Windy. Lows around 2 below. West winds 10 to 15 mph with gusts up to 30 mph increasing to northwest 15 to 25 mph with gusts up to 40 mph after midnight. Chance of precipitation 70 percent. Wind chill values as low as 24 below after midnight.

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  • Day

    3°F

    Partly cloudy and blustery. Highs around 6 above. Northwest winds 15 to 25 mph with gusts up to 35 mph. Wind chill values as low as 27 below.

    Night

    1°F

    Mostly cloudy in the evening then becoming partly cloudy. Near steady temperature around 3 above. West winds 10 to 15 mph diminishing to around 5 mph after midnight. Wind chill values as low as 14 below.

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  • Day

    17°F

    Mostly sunny in the morning then becoming partly cloudy. Highs around 20. West winds 5 to 10 mph. Wind chill values as low as 11 below in the morning.

    Night

    16°F

    Mostly cloudy. A chance of snow. Some snow accumulation possible. Lows around 13. Temperature rising into the lower 20s after midnight. South winds 5 to 10 mph increasing to 10 to 15 mph after midnight. Chance of precipitation 50 percent.

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  • Day

    27°F

    Mostly cloudy. A slight chance of snow in the morning. Near steady temperature in the mid 20s. Chance of precipitation 20 percent.

    Night

    11°F

    Mostly cloudy in the evening then becoming partly cloudy. Lows around 10 above.

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  • Day

    20°F

    Partly cloudy in the morning then becoming mostly cloudy. Highs 15 to 20.

    Night

    7°F

    Mostly cloudy. Lows zero to 5 above zero.

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  • Day

    8°F

    Mostly cloudy. Highs 15 to 20.

    Night

    -12°F

    Mostly cloudy. Lows around zero. Wind chill values as low as 20 below after midnight.

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  • Weekend Weather

  • Day

    2°F

    Mostly cloudy. Highs 5 to 10 above. Wind chill values as low as 20 below.

    Night

    -7°F

    Mostly cloudy with a 40 percent chance of snow. Lows 5 below to 10 below zero. Wind chill values as low as 25 below.

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  • Day

    6°F

    Mostly cloudy. Highs around 10 above. Wind chill values as low as 25 below.

    Night

    -3°F

    Partly cloudy. Low temperature around -3F. Dew point will be around -3F with an average humidity of 84%. Winds will be 4 mph from the W.

  • Day

    8°F

    Partly cloudy. High temperature around 8F. Dew point will be around -0F with an average humidity of 82%. Winds will be 4 mph from the W.

    Night

    -1°F

    Partly cloudy. Low temperature around -1F. Dew point will be around -1F with an average humidity of 85%. Winds will be 3 mph from the W.

  • Day

    12°F

    Sunny. High temperature around 12F. Dew point will be around 4F with an average humidity of 81%. Winds will be 2 mph from the W.

    Night

    5°F

    Cloudy. Low temperature around 5F. Dew point will be around 5F with an average humidity of 85%. Winds will be 3 mph from the W.