Sussex Weather Forecast

    • 54
    • 84

    Isolated Thunderstorms

    • 56
    • 88

    Areas Smoke

    • 52
    • 87

    Isolated Thunderstorms

    • 49
    • 79

    Rain Showers Likely

    • 48
    • 72

    Chance Rain Showers

    • 48
    • 77

    Slight Chance Thunderstorms

    • 50
    • 81

    Partly Sunny

Today 9 Sep Southeast Johnson County

Partly cloudy. Areas of smoke. Near steady temperature in the lower 80s.

Tonight 9 Sep Southeast Johnson County

Partly cloudy. Areas of smoke after midnight. Lows in the mid 50s. Southeast Winds around 10 Mph, becoming south after midnight. Gusts up to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sussex Temperature Statistics

September Temperature

Buffalo - Johnson County Airport (51.6 miles)

  • Lowest 6 September, 2025

    43 °F

  • Average September

    65 °F

  • Highest 1 September, 2025

    84.9 °F

Climate (2020–Present)

Buffalo - Johnson County Airport (51.6 miles)

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

  • Average Low 2020–2025

    36.5 °F

  • Average 2020–2025

    47.6 °F

  • Average High 2020–2025

    58.8 °F
Get WillyWeather+ to remove ads