Deer Plain Weather Forecast

    • 29
    • 41

    Mostly Cloudy

    • 26
    • 48

    Partly Sunny

    • 28
    • 37

    Mostly Cloudy

    • 31
    • 55

    Mostly Sunny

    • 40
    • 57

    Mostly Sunny

    • 40
    • 61

    Slight Chance Rain

Today 5 Feb Calhoun

Mostly cloudy in the Morning, then becoming partly sunny. Highs in the upper 30s. South Winds 5 to 10 Mph. Wind chill Values as low as 5 above in the morning.

Tonight 5 Feb Calhoun

Partly cloudy. Not as cool with Lows in the upper 20s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Deer Plain Temperature Statistics

February Temperature

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

  • Lowest 1 February, 2026

    3 °F

  • Average February

    26.8 °F

  • Highest 2 February, 2026

    37.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    57.7 °F

  • Average High 2021–2026

    68.5 °F
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