Florissant Weather Forecast

    • 47
    • 68

    Becoming Sunny

    • 55
    • 71

    Chance Rain Showers

    • 57
    • 69

    Rain Showers

    • 55
    • 66

    Rain Showers Likely

    • 54
    • 67

    Chance Rain Showers

    • 53
    • 68

    Slight Chance Rain Showers

Today 22 May St. Louis

Sunny in the Morning, then becoming partly sunny. Highs in the upper 60s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 22 May St. Louis

Partly cloudy in the Evening, then clearing. Lows in the mid 40s. Northwest Winds 10 to 15 Mph, Diminishing to around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Florissant Temperature Statistics

May Temperature

St. Louis Lambert International Airport (3.7 miles)

  • Lowest 6 May, 2025

    45.6 °F

  • Average May

    66.9 °F

  • Highest 15 May, 2025

    88.6 °F

Climate (2020–Present)

St. Louis Lambert International Airport (3.7 miles)

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  • Average Low 2020–2025

    50.4 °F

  • Average 2020–2025

    59.7 °F

  • Average High 2020–2025

    69.1 °F
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