Saybrook Weather Forecast

    • 59
    • 81

    Mostly Sunny

    • 69
    • 88

    Partly Sunny

    • 65
    • 89

    Rain Showers Likely

    • 57
    • 80

    Mostly Sunny

    • 62
    • 82

    Chance Rain Showers

    • 64
    • 86

    Chance Rain Showers

Today 7 Sep McLean

Sunny. Near steady temperature around 80. East Winds 5 to 10 Mph.

Tonight 7 Sep McLean

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 50s. East Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Saybrook Temperature Statistics

September Temperature

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

  • Lowest 5 September, 2026

    71.1 °F

  • Average September

    83.3 °F

  • Highest 1 September, 2026

    95 °F

Climate (2021–2026)

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

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    62.7 °F
Get WillyWeather+ to remove ads