Dunlap Lake Weather Forecast

    • 74
    • 93

    Chance Thunderstorms

    • 75
    • 89

    Chance Thunderstorms

    • 76
    • 94

    Mostly Sunny

    • 77
    • 96

    Mostly Sunny

    • 76
    • 95

    Mostly Sunny

    • 76
    • 95

    Slight Chance Thunderstorms

    • 76
    • 94

    Chance Thunderstorms

Today 20 Jul Madison

Partly sunny with a chance of Showers and Thunderstorms. Some Thunderstorms may produce heavy rainfall. Near steady temperature in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 30 percent. Heat index Values up to 109.

Tonight 20 Jul Madison

Mostly cloudy with a chance of Thunderstorms. A chance of Showers. Some Thunderstorms may produce heavy rainfall. Humid with Lows in the mid 70s. South Winds around 5 Mph, becoming southeast around 5 Mph after midnight. Chance of rain 50 percent. Heat index Values up to 103 early in the evening.

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Dunlap Lake Temperature Statistics

July Temperature

St. Louis Regional Airport (8.1 miles)

  • Lowest 2 July, 2025

    63.9 °F

  • Average July

    76 °F

  • Highest 4 July, 2025

    91.4 °F

Climate (2020–Present)

St. Louis Regional Airport (8.1 miles)

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  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    65.9 °F
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