Ethlyn Weather Forecast

    • 64
    • 92

    Chance Thunderstorms

    • 62
    • 84

    Chance Thunderstorms

    • 65
    • 85

    Chance Rain Showers

    • 65
    • 81

    Rain Showers Likely

    • 63
    • 82

    Chance Rain Showers

    • 59
    • 80

    Chance Rain Showers

Today 18 Sep Lincoln

Sunny. Isolated Showers and Thunderstorms this afternoon. Highs in the lower 90s. South Winds around 5 Mph. Chance of rain 20 percent.

Tonight 18 Sep Lincoln

Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the lower 60s. Northwest Winds around 5 Mph. Chance of rain 50 percent.

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Ethlyn Temperature Statistics

September Temperature

St. Charles, St. Charles County Smartt Airport (21.1 miles)

  • Lowest 7 September, 2025

    48 °F

  • Average September

    70.5 °F

  • Highest 14 September, 2025

    96.1 °F

Climate (2020–Present)

St. Charles, St. Charles County Smartt Airport (21.1 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    57.6 °F

  • Average High 2020–2025

    68.4 °F
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