Riverside Weather Forecast

    • 58
    • 65

    Rain Showers

    • 53
    • 74

    Partly Sunny

    • 40
    • 63

    Partly Sunny

    • 43
    • 60

    Partly Sunny

    • 45
    • 59

    Chance Rain Showers

    • 39
    • 57

    Mostly Sunny

Today 29 Sep Carlton/South St. Louis

Cloudy with a slight chance of Thunderstorms. A chance of Showers this Morning, then Showers likely this afternoon. Patchy fog this afternoon. Highs in the lower 60s. South Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Tonight 29 Sep Carlton/South St. Louis

Cloudy. A chance of Showers with a slight chance of Thunderstorms in the evening. Patchy fog. Lows in the mid 50s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Riverside Temperature Statistics

September Temperature

Richard I. Bong Airport (5.6 miles)

  • Lowest 13 September, 2026

    44.6 °F

  • Average September

    61.2 °F

  • Highest 11 September, 2026

    85.3 °F

Climate (2021–2026)

Richard I. Bong Airport (5.6 miles)

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

  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    42.7 °F

  • Average High 2021–2026

    51 °F
Get WillyWeather+ to remove ads