Fairfax Weather Forecast

    • 50
    • 69

    Mostly Cloudy

    • 42
    • 65

    Mostly Sunny

    • 52
    • 63

    Mostly Cloudy

    • 60
    • 77

    Mostly Cloudy

    • 62
    • 83

    Partly Sunny

    • 64
    • 86

    Mostly Cloudy

Today 10 Apr New Castle

Mostly cloudy this Morning, then clearing. Patchy fog this morning. Warmer with Highs around 70. South Winds 5 to 10 Mph.

Tonight 10 Apr New Castle

Mostly clear in the Evening, then becoming mostly cloudy. Not as cool with Lows around 50. South Winds 5 to 10 Mph, becoming southwest after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Fairfax Temperature Statistics

April Temperature

Wilmington, New Castle County Airport (8.1 miles)

  • Lowest 8 April, 2026

    30.9 °F

  • Average April

    56.2 °F

  • Highest 1 April, 2026

    85.6 °F

Climate (2021–Present)

Wilmington, New Castle County Airport (8.1 miles)

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

  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    66.5 °F
Get WillyWeather+ to remove ads