Randolph Weather Forecast

    • 54
    • 66

    Chance Rain Showers

    • 51
    • 66

    Mostly Cloudy

    • 50
    • 69

    Partly Sunny

    • 52
    • 70

    Mostly Cloudy

    • 51
    • 71

    Mostly Cloudy

    • 54
    • 74

    Mostly Cloudy

Today 21 Sep McLean

Cloudy with a 20 percent chance of Showers. Cooler with Highs in the upper 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 21 Sep McLean

Mostly cloudy. Lows in the mid 50s. Northeast Winds 10 to 15 Mph.

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Randolph Temperature Statistics

September Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (7.5 miles)

  • Lowest 14 September, 2026

    52 °F

  • Average September

    75.3 °F

  • Highest 1 September, 2026

    95 °F

Climate (2021–2026)

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (7.5 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    62.7 °F
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