Buffalo Weather Forecast

    • 72
    • 88

    Partly Sunny

    • 69
    • 92

    Chance Rain Showers

    • 71
    • 90

    Chance Rain Showers

    • 69
    • 93

    Rain Showers Likely

    • 65
    • 86

    Chance Rain Showers

    • 62
    • 81

    Chance Rain Showers

Today 16 Sep Sangamon

Partly sunny. Highs around 90. North Winds around 5 Mph. Heat index Values up to 100.

Tonight 16 Sep Sangamon

Partly cloudy. Humid with Lows in the lower 70s. Northeast Winds around 5 Mph, becoming southeast after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Buffalo Temperature Statistics

September Temperature

Springfield - Abraham Lincoln Capital Airport (14.3 miles)

  • Lowest 14 September, 2026

    55.9 °F

  • Average September

    79 °F

  • Highest 2 September, 2026

    100.7 °F

Climate (2021–2026)

Springfield - Abraham Lincoln Capital Airport (14.3 miles)

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

  • Average Low 2021–2026

    45 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    65.7 °F
Get WillyWeather+ to remove ads