Fullerton Weather Forecast

    • 33
    • 59

    Increasing Clouds

    • 30
    • 51

    Decreasing Clouds

    • 36
    • 55

    Slight Chance Rain Showers

    • 35
    • 61

    Mostly Sunny

    • 46
    • 62

    Partly Sunny

    • 34
    • 65

    Mostly Sunny

    • 41
    • 58

    Partly Sunny

Today 31 Oct De Witt

Sunny. Near steady temperature in the upper 50s. West Winds 10 to 15 Mph.

Tonight 31 Oct De Witt

Partly cloudy. Lows in the lower 30s. West Winds around 5 Mph.

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Fullerton Temperature Statistics

October Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (20.5 miles)

  • Lowest 24 October, 2025

    32 °F

  • Average October

    59 °F

  • Highest 3 October, 2025

    88 °F

Climate (2020–Present)

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (20.5 miles)

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    62.3 °F
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