Dayton Weather Forecast

    • 31
    • 35

    Gradual Clearing

    • 23
    • 44

    Partly Sunny

    • 9
    • 36

    Mostly Cloudy

    • 10
    • 18

    Snow

    • 12
    • 19

    Snow

    • 5
    • 24

    Slight Chance Snow

Today 21 Jan Middlesex

Mostly sunny and not as cool. Near steady temperature in the lower 30s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 21 Jan Middlesex

Mostly cloudy. A chance of Flurries in the evening. Not as cold. Near steady temperature in the lower 30s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Dayton Temperature Statistics

January Temperature

Trenton, Mercer County Airport (17.4 miles)

  • Lowest 19 January, 2026

    15.1 °F

  • Average January

    33.6 °F

  • Highest 9 January, 2026

    53.1 °F

Climate (2021–Present)

Trenton, Mercer County Airport (17.4 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    64.3 °F
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