Buffalo Weather Forecast
- 69
- 95
Chance Thunderstorms
- 72
- 90
Chance Rain Showers
- 69
- 93
Slight Chance Thunderstorms
- 70
- 90
Slight Chance Thunderstorms
- 67
- 90
Chance Rain Showers
- 60
- 80
Chance Rain Showers
Today 15 Sep Sangamon
Mostly sunny. A chance of Showers and Thunderstorms this afternoon. Highs in the mid 90s. South Winds 10 to 15 Mph, becoming west 5 to 10 Mph this afternoon. Chance of rain 50 percent. Heat index Values up to 103.
Tonight 15 Sep Sangamon
Mostly cloudy with a chance of Showers and Thunderstorms. Humid with Lows in the upper 60s. Northeast Winds around 5 Mph. Chance of rain 50 percent.
Buffalo Temperature Statistics
September Temperature
Springfield - Abraham Lincoln Capital Airport (14.3 miles)
Lowest 13 September, 2026
57.9 °FAverage September
79.7 °FHighest 2 September, 2026
100.7 °F
Climate (2021–2026)
Springfield - Abraham Lincoln Capital Airport (14.3 miles)
Average Low 2021–2026
45 °FAverage 2021–2026
55.6 °FAverage High 2021–2026
65.7 °F