Optimist Park Weather Forecast

    • 60
    • 74

    Rain Showers Likely

    • 62
    • 71

    Rain Showers Likely

    • 48
    • 69

    Chance Rain Showers

    • 43
    • 64

    Mostly Sunny

    • 46
    • 63

    Partly Sunny

    • 40
    • 64

    Partly Sunny

Today 29 Sep Brown

Mostly sunny. Highs in the lower 60s.

Tonight 29 Sep Brown

Warmer. A chance of Showers in the Evening, then Showers and a slight chance of Thunderstorms after midnight. Patchy fog after midnight. Lows around 60. South wind 10 to 15 Mph. Chance of rain near 100 percent.

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  • Temperature Real-Time

Optimist Park Temperature Statistics

September Temperature

Green Bay, Austin Straubel International Airport (6.2 miles)

  • Lowest 27 September, 2026

    39.9 °F

  • Average September

    63.8 °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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