Chicago Rockford International Airport Weather Forecast

    • 12
    • 23

    Mostly Cloudy

    • 27
    • 36

    Mostly Cloudy

    • 32
    • 37

    Chance Rain

    • 6
    • 44

    Partly Sunny

    • 19
    • 26

    Mostly Cloudy

    • 19
    • 41

    Mostly Cloudy

Today 15 Dec Winnebago

Mostly cloudy and Blustery. Not as cold with Highs in the lower 20s. Southwest Winds 15 to 20 Mph, Diminishing to 10 to 15 Mph in the afternoon. Gusts up to 30 Mph. Wind chill Values as low as 13 below in the morning.

Tonight 15 Dec Winnebago

Partly cloudy. Lows around 12. Southwest Winds around 5 Mph.

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Chicago Rockford International Airport Temperature Statistics

December Temperature

Rockford, Greater Rockford Airport (0 miles)

  • Lowest 4 December, 2025

    -4 °F

  • Average December

    21 °F

  • Highest 9 December, 2025

    39.9 °F

Climate (2020–Present)

Rockford, Greater Rockford Airport (0 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    61.6 °F
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