West Middlesex Weather Forecast

    • 50
    • 68

    Partly Sunny

    • 56
    • 76

    Chance Thunderstorms

    • 62
    • 79

    Rain Showers

    • 57
    • 83

    Rain Showers Likely

    • 55
    • 76

    Slight Chance Thunderstorms

    • 56
    • 76

    Chance Rain Showers

Today 15 Jun Mercer

Partly cloudy. Unseasonably cool with Highs in the mid 60s. Northwest Winds 5 to 10 Mph.

Tonight 15 Jun Mercer

Mainly clear. Lows in the upper 40s. West Winds 5 to 10 Mph, becoming south after midnight.

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West Middlesex Temperature Statistics

June Temperature

New Castle, New Castle Municipal Airport (9.9 miles)

  • Lowest 1 June, 2026

    43 °F

  • Average June

    70.1 °F

  • Highest 8 June, 2026

    88 °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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