Delaware Weather Forecast

    • 60
    • 75

    Rain Showers Likely

    • 61
    • 75

    Chance Thunderstorms

    • 59
    • 74

    Chance Rain Showers

    • 60
    • 78

    Chance Thunderstorms

    • 58
    • 75

    Chance Rain Showers

    • 56
    • 73

    Partly Sunny

Today 19 Sep Delaware

Patchy fog in the morning. Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Highs in the mid 70s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 19 Sep Delaware

A chance of Thunderstorms in the evening. Showers likely. Lows around 60. South Winds around 5 Mph. Chance of rain 60 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Delaware Temperature Statistics

September Temperature

Monticello Regional Airport (19.9 miles)

  • Lowest 7 September, 2025

    37.4 °F

  • Average September

    63.8 °F

  • Highest 13 September, 2025

    93.2 °F

Climate (2020–Present)

Monticello Regional Airport (19.9 miles)

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

  • Average Low 2020–2025

    37.6 °F

  • Average 2020–2025

    48.3 °F

  • Average High 2020–2025

    58.5 °F
Get WillyWeather+ to remove ads