Mercer Weather Forecast

    • 28
    • 40

    Decreasing Clouds

    • 27
    • 50

    Chance Rain/Snow

    • 31
    • 44

    Chance Rain/Snow

    • 46
    • 64

    Rain

    • 18
    • 61

    Chance Snow

    • 16
    • 27

    Slight Chance Snow

    • 26
    • 35

    Mostly Cloudy

Today 12 Mar Mercer

Partly cloudy and cold. Near steady temperature in the upper 30s. Northwest Winds around 15 Mph with Gusts up to 25 Mph.

Tonight 12 Mar Mercer

Mainly clear. Lows in the upper 20s. Southwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Mercer Temperature Statistics

March Temperature

New Castle, New Castle Municipal Airport (16.2 miles)

  • Lowest 2 March, 2026

    15.1 °F

  • Average March

    47.8 °F

  • Highest 7 March, 2026

    79 °F

Climate (2021–Present)

New Castle, New Castle Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    41.6 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    61.1 °F
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