West Middlesex Weather Forecast

    • 54
    • 76

    Partly Sunny

    • 60
    • 78

    Mostly Cloudy

    • 59
    • 82

    Rain Showers Likely

    • 50
    • 69

    Rain Showers Likely

    • 53
    • 70

    Chance Rain Showers

    • 48
    • 70

    Chance Rain Showers

Today 29 Sep Mercer

Partly sunny in the Morning, then becoming partly cloudy. Patchy fog in the morning. Highs in the mid 70s. Light and variable Winds, becoming west around 5 Mph in the afternoon.

Tonight 29 Sep Mercer

Partly cloudy. Patchy fog. Lows in the mid 50s. West Winds around 5 Mph, becoming southeast after midnight.

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West Middlesex Temperature Statistics

September Temperature

New Castle, New Castle Municipal Airport (9.9 miles)

  • Lowest 25 September, 2026

    39 °F

  • Average September

    67 °F

  • Highest 2 September, 2026

    91.9 °F

Climate (2021–2026)

New Castle, New Castle Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    61.1 °F
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