Mercer Weather Forecast

    • 51
    • 66

    Increasing Clouds

    • 58
    • 68

    Rain Likely

    • 29
    • 71

    Rain

    • 26
    • 39

    Mostly Cloudy

    • 27
    • 47

    Chance Rain/Snow

    • 33
    • 43

    Chance Rain/Snow

    • 26
    • 59

    Rain Likely

Today 9 Mar Mercer

Sunny, warm. Near steady temperature in the mid 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 9 Mar Mercer

Clear early this Evening, then becoming mostly cloudy. Mild. Lows in the lower 50s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • 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

    45.3 °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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