Dayton Weather Forecast

    • 57
    • 73

    Patchy Fog

    • 61
    • 77

    Increasing Clouds

    • 63
    • 79

    Partly Sunny

    • 61
    • 83

    Chance Rain Showers

    • 55
    • 71

    Chance Rain Showers

    • 53
    • 67

    Chance Rain Showers

    • 45
    • 66

    Mostly Sunny

Today 29 Sep Middlesex

Sunny. Highs in the lower 60s.

Tonight 29 Sep Middlesex

Mostly cloudy this Evening, then becoming partly cloudy. Patchy fog. Lows in the upper 50s. West Winds around 5 Mph.

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Dayton Temperature Statistics

September Temperature

Trenton, Mercer County Airport (17.4 miles)

  • Lowest 24 September, 2026

    50.6 °F

  • Average September

    69.6 °F

  • Highest 1 September, 2026

    88.6 °F

Climate (2021–2026)

Trenton, Mercer County Airport (17.4 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    55.3 °F

  • Average High 2021–2026

    64.5 °F
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