Mercer Weather Forecast

    • 25
    • 43

    Becoming Sunny

    • 50
    • 63

    Partly Sunny

    • 43
    • 68

    Rain Showers

    • 52
    • 75

    Partly Sunny

    • 54
    • 77

    Rain Showers Likely

    • 47
    • 68

    Chance Rain Showers

Today 20 Apr Mercer

Partly cloudy. Cool with Highs in the lower 40s. Northwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 20 Apr Mercer

Clear. Widespread frost after midnight. Unseasonably cold with Lows in the mid 20s. Northwest Winds 5 to 10 Mph, becoming southeast after midnight.

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Mercer Temperature Statistics

April Temperature

New Castle, New Castle Municipal Airport (16.2 miles)

  • Lowest 8 April, 2026

    19.9 °F

  • Average April

    56.5 °F

  • Highest 4 April, 2026

    82.9 °F

Climate (2021–Present)

New Castle, New Castle Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    61.1 °F
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