Brentwood Weather Forecast

    • 78
    • 96

    Thunderstorms

    • 79
    • 96

    Isolated Thunderstorms

    • 76
    • 93

    Chance Thunderstorms

    • 76
    • 94

    Chance Thunderstorms

    • 75
    • 95

    Chance Thunderstorms

    • 72
    • 92

    Chance Thunderstorms

Today 25 Jun St. Louis

Mostly sunny. A chance of Showers and Thunderstorms in the afternoon. Hot with Highs in the mid 90s. Southwest Winds around 5 Mph. Chance of rain 30 percent. Heat index Values up to 105.

Tonight 25 Jun St. Louis

Clear. Lows in the mid 70s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Brentwood Temperature Statistics

June Temperature

St. Louis Lambert International Airport (9.3 miles)

  • Lowest 10 June, 2025

    59.6 °F

  • Average June

    76.6 °F

  • Highest 21 June, 2025

    96.1 °F

Climate (2020–Present)

St. Louis Lambert International Airport (9.3 miles)

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  • Average Low 2020–2025

    50.3 °F

  • Average 2020–2025

    59.6 °F

  • Average High 2020–2025

    69 °F
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