Peoria, IL Weather & Growing Conditions
Today
83°F
Mostly Cloudy
Mostly cloudy, with a high near 83. South southeast wind around 8 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Cloudy | 8 mph SSE | 13% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 6 mph SE | 39% |
| Sunday | 75°F | Chance Showers And Thunderstorms | 6 to 13 mph NNE | 54% |
| Sunday Night | 59°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 47% |
| Monday | 66°F | Rain Showers Likely | 12 to 16 mph ENE | 70% |
| Monday Night | 55°F | Chance Rain Showers | 10 to 15 mph NE | 46% |
| Tuesday | 65°F | Slight Chance Rain Showers | 14 mph NE | 22% |
| Tuesday Night | 52°F | Partly Cloudy | 6 to 13 mph NNE | 12% |
| Wednesday | 69°F | Mostly Sunny | 10 mph NNE | 4% |
| Wednesday Night | 54°F | Partly Cloudy | 3 to 9 mph NNE | 1% |
| Thursday | 70°F | Mostly Sunny | 7 mph NNE | 3% |
| Thursday Night | 56°F | Partly Cloudy | 2 to 6 mph NE | 3% |
| Friday | 73°F | Mostly Sunny | 3 to 7 mph NE | 3% |
| Friday Night | 55°F | Partly Cloudy | 2 to 6 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Peoria, IL
Last spring frost
Apr 16
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
6a
Explore more for Peoria, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Peoria Gtr Peoria Ap, Il (5.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.