Elsah Weather Forecast

    • 76
    • 96

    Chance Thunderstorms

    • 75
    • 97

    Slight Chance Thunderstorms

    • 72
    • 93

    Chance Thunderstorms

    • 67
    • 83

    Slight Chance Thunderstorms

    • 66
    • 83

    Mostly Sunny

    • 67
    • 87

    Mostly Sunny

Today 17 Aug Jersey

Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Hot with Highs in the mid 90s. South Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 106.

Tonight 17 Aug Jersey

Mostly clear. Near steady temperature in the mid 70s. South Winds around 5 Mph.

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Elsah Temperature Statistics

August Temperature

St. Charles, St. Charles County Smartt Airport (3.7 miles)

  • Lowest 3 August, 2025

    58.6 °F

  • Average August

    77.5 °F

  • Highest 8 August, 2025

    95.6 °F

Climate (2020–Present)

St. Charles, St. Charles County Smartt Airport (3.7 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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