Marine Weather Forecast

    • 75
    • 94

    Slight Chance Thunderstorms

    • 73
    • 93

    Chance Thunderstorms

    • 71
    • 91

    Chance Thunderstorms

    • 70
    • 89

    Slight Chance Thunderstorms

    • 70
    • 88

    Chance Thunderstorms

    • 71
    • 89

    Chance Thunderstorms

Today 3 Jul Madison

Sunny. A slight chance of Showers and Thunderstorms in the afternoon. Hot with Highs in the mid 90s. South Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 107.

Tonight 3 Jul Madison

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Humid with Lows in the mid 70s. South Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 105 early in the evening.

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Marine Temperature Statistics

July Temperature

St. Louis Regional Airport (14.9 miles)

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  • Average July

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Climate (2021–2026)

St. Louis Regional Airport (14.9 miles)

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  • Average Low 2021–2026

    46.5 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    66.6 °F
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