Edwardsville Weather Forecast

    • 77
    • 93

    Slight Chance Thunderstorms

    • 72
    • 93

    Chance Thunderstorms

    • 67
    • 85

    Partly Sunny

    • 73
    • 88

    Slight Chance Thunderstorms

    • 68
    • 90

    Slight Chance Thunderstorms

    • 63
    • 82

    Partly Sunny

Today 15 Aug Madison

Partly sunny. A slight chance of Showers and Thunderstorms this morning. Highs in the mid 90s. Northeast Winds around 5 Mph, becoming southwest this afternoon. Chance of rain 20 percent. Heat index Values up to 111 this afternoon.

Tonight 15 Aug Madison

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows in the upper 70s. Southwest Winds around 5 Mph. Heat index Values up to 110 early in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Edwardsville Temperature Statistics

August Temperature

St. Louis Regional Airport (6.8 miles)

  • Lowest 3 August, 2026

    63.5 °F

  • Average August

    75.3 °F

  • Highest 11 August, 2026

    95 °F

Climate (2021–2026)

St. Louis Regional Airport (6.8 miles)

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

  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    66.6 °F
Get WillyWeather+ to remove ads