Chicago Rockford International Airport Weather Forecast

    • 62
    • 76

    Slight Chance Rain Showers

    • 65
    • 73

    Rain Showers

    • 54
    • 71

    Rain Showers

    • 47
    • 65

    Slight Chance Rain Showers

    • 50
    • 66

    Chance Rain Showers

    • 44
    • 65

    Partly Sunny

Today 29 Sep Winnebago

Partly cloudy in the Morning, then becoming mostly cloudy. Highs in the mid 70s. South Winds 5 to 10 Mph.

Tonight 29 Sep Winnebago

Mostly cloudy. A slight chance of Showers late. Lows in the lower 60s. South Winds 5 to 10 Mph. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chicago Rockford International Airport Temperature Statistics

September Temperature

Rockford, Greater Rockford Airport (0 miles)

  • Lowest 14 September, 2026

    44.7 °F

  • Average September

    69.4 °F

  • Highest 2 September, 2026

    96.7 °F

Climate (2021–2026)

Rockford, Greater Rockford Airport (0 miles)

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  • Average Low 2021–2026

    41.4 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    61.7 °F
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