Dennis Weather Forecast

    • 64
    • 84

    Increasing Clouds

    • 65
    • 84

    Mostly Cloudy

    • 69
    • 85

    Mostly Cloudy

    • 70
    • 86

    Chance Rain Showers

    • 72
    • 88

    Slight Chance Thunderstorms

    • 72
    • 88

    Rain Showers Likely

Today 23 Sep Delaware

Sunny. Highs in the mid 80s. Northeast Winds 5 to 10 Mph.

Tonight 23 Sep Delaware

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. East Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Dennis Temperature Statistics

September Temperature

Grove, Grove Municipal Airport (7.5 miles)

  • Lowest 11 September, 2026

    68 °F

  • Average September

    84.4 °F

  • Highest 5 September, 2026

    104 °F

Climate (2021–2026)

Grove, Grove Municipal Airport (7.5 miles)

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

  • Average Low 2021–2026

    49.1 °F

  • Average 2021–2026

    60.4 °F

  • Average High 2021–2026

    72.1 °F
Get WillyWeather+ to remove ads