West Middlesex Weather Forecast

    • 56
    • 84

    Mostly Sunny

    • 53
    • 83

    Partly Sunny

    • 60
    • 84

    Partly Sunny

    • 60
    • 86

    Mostly Cloudy

    • 60
    • 84

    Chance Rain Showers

    • 58
    • 83

    Chance Rain Showers

Today 18 Sep Mercer

Areas of fog Early, then patchy fog this morning. Mainly sunny. Highs in the lower 80s. Light and variable Winds, becoming northwest around 5 Mph.

Tonight 18 Sep Mercer

Mainly clear. Patchy fog after midnight. Lows in the mid 50s. North Winds around 5 Mph in the Evening, becoming light and variable.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

West Middlesex Temperature Statistics

September Temperature

New Castle, New Castle Municipal Airport (9.9 miles)

  • Lowest 8 September, 2025

    37.9 °F

  • Average September

    61.7 °F

  • Highest 15 September, 2025

    84 °F

Climate (2020–Present)

New Castle, New Castle Municipal Airport (9.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    41.9 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    61.1 °F
Get WillyWeather+ to remove ads