Chicago Rockford International Airport Weather Forecast

    • 34
    • 39

    Slight Chance Rain

    • 26
    • 45

    Mostly Cloudy

    • 36
    • 40

    Rain Likely

    • 39
    • 44

    Chance Rain

    • 35
    • 49

    Mostly Cloudy

    • 22
    • 49

    Mostly Cloudy

    • 11
    • 29

    Blustery

Today 22 Dec Winnebago

Mostly cloudy. A slight chance of Sprinkles late. Highs in the upper 30s. South Winds 10 to 15 Mph. Gusts up to 25 Mph in the morning.

Tonight 22 Dec Winnebago

Cloudy. A slight chance of rain early in the evening. Near steady temperature in the mid 30s. Southwest Winds 5 to 10 Mph. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

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Chicago Rockford International Airport Temperature Statistics

December Temperature

Rockford, Greater Rockford Airport (0 miles)

  • Lowest 14 December, 2025

    -6 °F

  • Average December

    20.5 °F

  • Highest 18 December, 2025

    45 °F

Climate (2020–Present)

Rockford, Greater Rockford Airport (0 miles)

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  • Average Low 2020–2025

    41.6 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    61.5 °F
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