Buffalo, IL Weather & Growing Conditions
Overnight
71°F
Partly Cloudy
Partly cloudy, with a low around 71. Southeast wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Partly Cloudy | 8 mph SE | 4% |
| Saturday | 92°F | Partly Sunny | 6 to 9 mph SSW | 14% |
| Saturday Night | 70°F | Partly Cloudy then Chance Showers And Thunderstorms | 7 mph SSW | 25% |
| Sunday | 86°F | Chance Rain Showers | 3 to 10 mph NNW | 51% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms | 13 mph NE | 68% |
| Monday | 72°F | Showers And Thunderstorms Likely | 14 mph NE | 68% |
| Monday Night | 56°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 57% |
| Tuesday | 68°F | Chance Rain Showers | 14 mph NE | 32% |
| Tuesday Night | 53°F | Mostly Cloudy | 6 to 12 mph NNE | 5% |
| Wednesday | 71°F | Partly Sunny | 7 to 10 mph NNE | 2% |
| Wednesday Night | 54°F | Partly Cloudy | 3 to 9 mph NNE | 1% |
| Thursday | 72°F | Mostly Sunny | 5 to 9 mph NNE | 3% |
| Thursday Night | 56°F | Partly Cloudy | 3 to 8 mph NNE | 5% |
| Friday | 74°F | Mostly Sunny | 5 to 9 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Buffalo, IL
Last spring frost
Apr 14
First fall frost
Oct 20
Growing season
187 days
Hardiness zone
6a
Explore more for Buffalo, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Springfield Capital Ap, Il (16.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.