Portage Des Sioux Weather Forecast

    • 62
    • 82

    Rain Showers

    • 59
    • 82

    Rain Showers Likely

    • 56
    • 87

    Rain Showers Likely

    • 40
    • 70

    Chance Rain Showers

    • 40
    • 62

    Mostly Sunny

    • 47
    • 70

    Mostly Sunny

Today 15 Apr St. Charles

Mostly cloudy. Scattered Showers with isolated Thunderstorms in the Morning, then numerous Showers and Thunderstorms in the afternoon. Highs in the lower 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Tonight 15 Apr St. Charles

Scattered Thunderstorms. Showers. Lows in the lower 60s. Southwest Winds 10 to 15 Mph. Chance of rain 90 percent.

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Portage Des Sioux Temperature Statistics

April Temperature

St. Charles, St. Charles County Smartt Airport (4.3 miles)

  • Lowest 6 April, 2026

    38.6 °F

  • Average April

    59.7 °F

  • Highest 3 April, 2026

    83.6 °F

Climate (2021–Present)

St. Charles, St. Charles County Smartt Airport (4.3 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    68.8 °F
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