West Middlesex Weather Forecast

    • 53
    • 65

    Chance Rain Showers

    • 51
    • 64

    Rain Showers Likely

    • 49
    • 63

    Chance Rain Showers

    • 44
    • 67

    Slight Chance Rain Showers

    • 45
    • 68

    Partly Sunny

    • 47
    • 68

    Partly Sunny

Today 21 Sep Mercer

Partly cloudy. Highs in the lower 70s.

Tonight 21 Sep Mercer

Cloudy. Showers Likely, mainly this evening. Lows in the lower 50s. East Winds 10 to 15 Mph. Chance of rain 70 percent.

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West Middlesex Temperature Statistics

September Temperature

New Castle, New Castle Municipal Airport (9.9 miles)

  • Lowest 15 September, 2026

    50 °F

  • Average September

    70.2 °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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