Mercer Weather Forecast

    • 26
    • 46

    Increasing Clouds

    • 21
    • 42

    Slight Chance Rain/Snow

    • 34
    • 55

    Partly Sunny

    • 53
    • 58

    Rain Showers Likely

    • 54
    • 69

    Rain Showers

    • 51
    • 69

    Thunderstorms

    • 30
    • 59

    Chance Rain Showers

Today 25 Mar Mercer

Mostly sunny. Near steady temperature in the mid 40s. West Winds around 15 Mph with Gusts up to 30 Mph.

Tonight 25 Mar Mercer

Partly cloudy this Evening, then mostly cloudy with a chance of snow Showers after midnight. Little or no snow accumulation. Lows in the upper 20s. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph this evening. Chance of snow 40 percent.

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Mercer Temperature Statistics

March Temperature

New Castle, New Castle Municipal Airport (16.2 miles)

  • Lowest 1 March, 2025

    14 °F

  • Average March

    42.9 °F

  • Highest 14 March, 2025

    78.1 °F

Climate (2020–Present)

New Castle, New Castle Municipal Airport (16.2 miles)

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  • Average Low 2020–2025

    41.8 °F

  • Average 2020–2025

    51.2 °F

  • Average High 2020–2025

    61 °F
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