Riverview Weather Forecast

    • 55
    • 78

    Rain Showers Likely

    • 52
    • 70

    Slight Chance Thunderstorms

    • 57
    • 72

    Slight Chance Thunderstorms

Today 19 May St. Louis City

Mostly cloudy. A slight chance of Showers and Thunderstorms Early, then a chance of Showers and Thunderstorms. Some Thunderstorms may produce heavy rainfall. Highs in the upper 70s. Temperature falling into the lower 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 19 May St. Louis City

Mostly cloudy. A chance of Showers and Thunderstorms, mainly in the evening. Lows in the mid 50s. North Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Riverview Temperature Statistics

May Temperature

St. Louis Lambert International Airport (9.9 miles)

  • Lowest 7 May, 2026

    42.7 °F

  • Average May

    63.9 °F

  • Highest 17 May, 2026

    86 °F

Climate (2021–Present)

St. Louis Lambert International Airport (9.9 miles)

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  • Average Low 2021–2026

    50.6 °F

  • Average 2021–2026

    60.1 °F

  • Average High 2021–2026

    69.7 °F
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