Mercer Weather Forecast

    • 23
    • 33

    Increasing Clouds

    • 27
    • 41

    Mostly Cloudy

    • 28
    • 45

    Partly Sunny

    • 29
    • 45

    Partly Sunny

    • 35
    • 47

    Rain

    • 35
    • 52

    Rain

    • 32
    • 49

    Chance Rain

Today 13 Feb Mercer

Partly cloudy. Highs in the lower 30s. Southwest Winds 5 to 10 Mph.

Tonight 13 Feb Mercer

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the mid 20s. Temperatures rising to around 30 after midnight. Southwest Winds 5 to 10 Mph.

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Mercer Temperature Statistics

February Temperature

New Castle, New Castle Municipal Airport (16.2 miles)

  • Lowest 8 February, 2026

    -13 °F

  • Average February

    18.1 °F

  • Highest 10 February, 2026

    54 °F

Climate (2021–Present)

New Castle, New Castle Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    41.5 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    61 °F
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