St Charles Weather Forecast

    • 12
    • 30

    Increasing Clouds

    • 1
    • 22

    Chance Snow

    • -3
    • 10

    Slight Chance Snow

    • 19
    • 28

    Chance Freezing Rain

    • 18
    • 37

    Mostly Cloudy

    • 22
    • 35

    Mostly Cloudy

Today 28 Jan Gregory

Sunny this Morning, then becoming partly sunny. Highs around 30. South Winds around 5 Mph, becoming east this afternoon.

Tonight 28 Jan Gregory

Cloudy. A chance of snow after midnight. Snow accumulation around half an inch. Cold with Lows around 12. East Winds 5 to 10 Mph. Chance of snow 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Charles Temperature Statistics

January Temperature

Winner, Bob Wiley Field Airport (42.9 miles)

  • Lowest 23 January, 2026

    -14.1 °F

  • Average January

    25.5 °F

  • Highest 5 January, 2026

    64 °F

Climate (2021–Present)

Winner, Bob Wiley Field Airport (42.9 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    63.3 °F
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