Green Bay Weather Forecast

    • 54
    • 75

    Mostly Cloudy

    • 57
    • 70

    Chance Rain Showers

    • 57
    • 73

    Mostly Cloudy

    • 57
    • 67

    Rain

    • 57
    • 69

    Chance Rain

    • 55
    • 67

    Chance Rain

    • 54
    • 68

    Slight Chance Rain

Today 15 Sep Brown

Humid. Mostly cloudy. Nearly steady temperature in the mid 70s. West wind 10 to 15 Mph.

Tonight 15 Sep Brown

Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 50s. West wind 5 to 10 Mph in the evening becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Green Bay Temperature Statistics

September Temperature

Green Bay, Austin Straubel International Airport (6.2 miles)

  • Lowest 13 September, 2026

    48 °F

  • Average September

    69.3 °F

  • Highest 1 September, 2026

    90.6 °F

Climate (2021–2026)

Green Bay, Austin Straubel International Airport (6.2 miles)

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  • Average Low 2021–2026

    38.9 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    57.5 °F
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