Mercer Weather Forecast

    • 44
    • 63

    Becoming Sunny

    • 50
    • 72

    Chance Rain Showers

    • 49
    • 69

    Rain Showers

    • 41
    • 61

    Rain Showers Likely

    • 36
    • 55

    Partly Sunny

    • 34
    • 54

    Chance Rain Showers

Today 26 Apr Mercer

Mostly cloudy late this Morning, then becoming mostly sunny. Highs in the lower 60s. East Winds around 5 Mph.

Tonight 26 Apr Mercer

Mainly clear. Lows in the mid 40s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mercer Temperature Statistics

April Temperature

New Castle, New Castle Municipal Airport (16.2 miles)

  • Lowest 8 April, 2026

    19.9 °F

  • Average April

    55.8 °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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