Windsor Weather Forecast

    • 57
    • 79

    Increasing Clouds

    • 58
    • 81

    Decreasing Clouds

    • 58
    • 83

    Partly Sunny

    • 57
    • 81

    Partly Sunny

    • 55
    • 80

    Partly Sunny

    • 57
    • 79

    Mostly Cloudy

    • 58
    • 79

    Partly Sunny

Today 12 Sep Mercer

Sunny. Highs around 80. Northeast Winds around 5 Mph.

Tonight 12 Sep Mercer

Partly cloudy. Patchy fog after midnight. Lows in the upper 50s. Southeast Winds around 5 Mph this Evening, becoming light and variable.

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Windsor Temperature Statistics

September Temperature

Trenton, Mercer County Airport (12.4 miles)

  • Lowest 8 September, 2025

    51.1 °F

  • Average September

    67.1 °F

  • Highest 5 September, 2025

    86 °F

Climate (2020–Present)

Trenton, Mercer County Airport (12.4 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    64.4 °F
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