Marine Weather Forecast

    • 64
    • 83

    Partly Sunny

    • 70
    • 85

    Thunderstorms Likely

    • 67
    • 85

    Rain Showers Likely

    • 64
    • 81

    Chance Thunderstorms

    • 64
    • 82

    Mostly Sunny

    • 64
    • 84

    Mostly Sunny

Today 17 Aug Madison

Mostly sunny. Highs in the mid 80s. Northwest Winds 5 to 10 Mph.

Tonight 17 Aug Madison

Partly cloudy. Patchy fog after midnight. Lows in the mid 60s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marine Temperature Statistics

August Temperature

St. Louis Regional Airport (14.9 miles)

  • Lowest 3 August, 2026

    63.5 °F

  • Average August

    76.5 °F

  • Highest 11 August, 2026

    95 °F

Climate (2021–2026)

St. Louis Regional Airport (14.9 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    66.6 °F
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