West Middlesex Weather Forecast

    • 55
    • 78

    Mostly Cloudy

    • 60
    • 85

    Mostly Cloudy

    • 57
    • 85

    Partly Sunny

    • 50
    • 76

    Mostly Sunny

    • 50
    • 75

    Partly Sunny

    • 52
    • 75

    Partly Sunny

Today 25 May Mercer

Considerable cloudiness in the Morning, then becoming partly cloudy. Patchy fog in the morning. Highs in the mid 70s. North Winds around 5 Mph.

Tonight 25 May Mercer

Mostly cloudy. Lows in the mid 50s. Northeast Winds around 5 Mph.

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West Middlesex Temperature Statistics

May Temperature

New Castle, New Castle Municipal Airport (9.9 miles)

  • Lowest 1 May, 2026

    33.1 °F

  • Average May

    55.4 °F

  • Highest 18 May, 2026

    89.1 °F

Climate (2021–Present)

New Castle, New Castle Municipal Airport (9.9 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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