Isaar Weather Forecast

    • 46
    • 66

    Increasing Clouds

    • 44
    • 60

    Mostly Cloudy

    • 46
    • 61

    Mostly Sunny

    • 48
    • 64

    Partly Sunny

    • 50
    • 67

    Mostly Cloudy

    • 49
    • 71

    Partly Sunny

Today 20 Sep Outagamie

Partly sunny. Highs in the upper 60s. Northeast wind 10 to 20 Mph.

Tonight 20 Sep Outagamie

Mostly cloudy. Lows in the upper 40s. Northeast wind 10 to 15 Mph.

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Isaar Temperature Statistics

September Temperature

Green Bay, Austin Straubel International Airport (9.3 miles)

  • Lowest 14 September, 2026

    40.6 °F

  • Average September

    67.4 °F

  • Highest 1 September, 2026

    90.6 °F

Climate (2021–2026)

Green Bay, Austin Straubel International Airport (9.3 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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