West Middlesex Weather Forecast

    • 25
    • 43

    Mostly Cloudy

    • 31
    • 38

    Rain

    • 30
    • 41

    Rain Likely

    • 30
    • 56

    Rain

    • 17
    • 42

    Snow Likely

    • 17
    • 27

    Chance Snow

Today 25 Dec Mercer

Partly sunny. Highs in the lower 40s. Temperatures falling into the mid 30s this afternoon. North Winds 5 to 10 Mph.

Tonight 25 Dec Mercer

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 20s. Northeast Winds 5 to 10 Mph, becoming east after midnight.

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West Middlesex Temperature Statistics

December Temperature

New Castle, New Castle Municipal Airport (9.9 miles)

  • Lowest 5 December, 2025

    1 °F

  • Average December

    26.3 °F

  • Highest 18 December, 2025

    57 °F

Climate (2020–Present)

New Castle, New Castle Municipal Airport (9.9 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    61 °F
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