St Charles Weather Forecast

    • 30
    • 44

    Increasing Clouds

    • 36
    • 53

    Mostly Cloudy

    • 50
    • 66

    Mostly Cloudy

    • 31
    • 75

    Chance Rain Showers

    • 26
    • 43

    Mostly Sunny

    • 34
    • 51

    Partly Sunny

Today 23 Mar Kane

Mostly sunny. Highs in the mid 40s. North Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph in the afternoon.

Tonight 23 Mar Kane

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 20s. Southeast Winds around 5 Mph.

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St Charles Temperature Statistics

March Temperature

Chicago / West Chicago, Dupage Airport (3.1 miles)

  • Lowest 17 March, 2026

    12.7 °F

  • Average March

    41.7 °F

  • Highest 21 March, 2026

    75 °F

Climate (2021–Present)

Chicago / West Chicago, Dupage Airport (3.1 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    61.5 °F
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