South Shore Weather Forecast

    • 59
    • 83

    Increasing Clouds

    • 64
    • 83

    Chance Thunderstorms

    • 65
    • 84

    Rain Showers Likely

    • 66
    • 85

    Chance Thunderstorms

    • 63
    • 81

    Rain Showers Likely

    • 61
    • 78

    Chance Rain Showers

Today 25 May St. Charles

Mostly sunny. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 25 May St. Charles

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 50s. East Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

South Shore Temperature Statistics

May Temperature

St. Charles, St. Charles County Smartt Airport (6.2 miles)

  • Lowest 3 May, 2026

    40.6 °F

  • Average May

    63.4 °F

  • Highest 17 May, 2026

    87.1 °F

Climate (2021–Present)

St. Charles, St. Charles County Smartt Airport (6.2 miles)

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

  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    68.9 °F
Get WillyWeather+ to remove ads