Barnes Weather Forecast

    • 60
    • 89

    Mostly Sunny

    • 59
    • 88

    Mostly Sunny

    • 60
    • 88

    Mostly Sunny

    • 62
    • 89

    Chance Thunderstorms

    • 61
    • 86

    Chance Rain Showers

    • 60
    • 80

    Chance Rain Showers

Today 15 Sep McLean

Sunny. Highs in the upper 80s. East Winds 5 to 10 Mph.

Tonight 15 Sep McLean

Mostly clear. Lows around 60. East Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Barnes Temperature Statistics

September Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (1.9 miles)

  • Lowest 7 September, 2025

    45 °F

  • Average September

    64.1 °F

  • Highest 12 September, 2025

    87.1 °F

Climate (2020–Present)

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (1.9 miles)

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

  • Average Low 2020–2025

    43.5 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    62.1 °F
Get WillyWeather+ to remove ads