Mercer Weather Forecast

    • 36
    • 40

    Mostly Cloudy

    • 40
    • 51

    Rain

    • 38
    • 57

    Rain

    • 41
    • 55

    Rain Likely

    • 31
    • 53

    Chance Rain

    • 25
    • 42

    Chance Snow

    • 19
    • 35

    Chance Rain/Snow

Today 16 Feb Mercer

Mostly cloudy Early, then becoming partly sunny. Highs in the mid 40s. South Winds 5 to 10 Mph.

Tonight 16 Feb Mercer

Mostly cloudy. Near steady temperature in the upper 30s. 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

    20.2 °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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