Saybrook Weather Forecast

    • 68
    • 81

    Gradual Clearing

    • 71
    • 88

    Partly Sunny

    • 74
    • 92

    Mostly Sunny

    • 74
    • 94

    Mostly Sunny

    • 73
    • 94

    Mostly Sunny

    • 70
    • 91

    Chance Rain Showers

Today 29 Aug McLean

Mostly cloudy. Highs in the lower 80s. South Winds 5 to 10 Mph.

Tonight 29 Aug McLean

Partly cloudy. Lows in the upper 60s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Saybrook Temperature Statistics

August Temperature

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

  • Lowest 25 August, 2026

    55.9 °F

  • Average August

    73.4 °F

  • Highest 9 August, 2026

    88 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    62.6 °F
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