Deer Plain Weather Forecast

    • 60
    • 82

    Decreasing Clouds

    • 63
    • 84

    Mostly Sunny

    • 67
    • 85

    Partly Sunny

    • 68
    • 88

    Mostly Sunny

    • 66
    • 87

    Mostly Sunny

    • 66
    • 85

    Partly Sunny

Today 23 Aug Calhoun

Sunny. Highs in the lower 80s. Northwest Winds 5 to 10 Mph.

Tonight 23 Aug Calhoun

Partly cloudy in the Evening, then clearing. Patchy fog after midnight. Lows in the upper 50s. North Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Real-Time

Deer Plain Temperature Statistics

August Temperature

St. Charles, St. Charles County Smartt Airport (5 miles)

  • Lowest 18 August, 2026

    62.7 °F

  • Average August

    78.7 °F

  • Highest 13 August, 2026

    97.6 °F

Climate (2021–2026)

St. Charles, St. Charles County Smartt Airport (5 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    69 °F
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