Willow Slough State Game Preserve Weather Forecast

    • 56
    • 65

    Cloudy

    • 52
    • 64

    Mostly Cloudy

    • 51
    • 70

    Mostly Cloudy

    • 47
    • 68

    Partly Sunny

    • 48
    • 67

    Mostly Cloudy

    • 50
    • 68

    Partly Sunny

    • 54
    • 73

    Partly Sunny

Today 22 Sep Newton

Mostly cloudy. Highs in the mid 70s.

Tonight 22 Sep Newton

Cloudy. A slight chance of Showers early in the Evening, then a chance of Showers in the late evening and early morning. A slight chance of Showers late. Lows in the mid 50s. Northeast Winds 5 to 10 Mph. Chance of precipitation 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Willow Slough State Game Preserve Temperature Statistics

September Temperature

Rensselaer Jasper County Airport (16.8 miles)

  • Lowest 14 September, 2026

    46.4 °F

  • Average September

    72.1 °F

  • Highest 15 September, 2026

    95 °F

Climate (2021–2026)

Rensselaer Jasper County Airport (16.8 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    61 °F
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