Peoria, IL Weather & Growing Conditions
Overnight
69°F
Slight Chance Showers And Thunderstorms
Patchy fog between 3am and 4am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southeast wind around 8 mph, with gusts as high as 16 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 69°F | Slight Chance Showers And Thunderstorms | 8 mph SE | 22% |
| Saturday | 86°F | Patchy Fog then Chance Showers And Thunderstorms | 8 mph S | 26% |
| Saturday Night | 68°F | Showers And Thunderstorms Likely | 5 to 8 mph N | 63% |
| Sunday | 76°F | Rain Showers Likely | 5 to 13 mph NE | 73% |
| Sunday Night | 60°F | Showers And Thunderstorms Likely | 15 mph NE | 71% |
| Monday | 67°F | Showers And Thunderstorms Likely | 15 mph ENE | 71% |
| Monday Night | 56°F | Chance Rain Showers | 15 mph NE | 42% |
| Tuesday | 66°F | Chance Rain Showers | 14 mph NE | 28% |
| Tuesday Night | 53°F | Mostly Cloudy | 6 to 13 mph NNE | 5% |
| Wednesday | 69°F | Mostly Sunny | 9 mph NNE | 4% |
| Wednesday Night | 55°F | Partly Cloudy | 2 to 8 mph NNE | 2% |
| Thursday | 70°F | Mostly Sunny | 3 to 7 mph NNE | 3% |
| Thursday Night | 57°F | Partly Cloudy | 2 to 6 mph NE | 3% |
| Friday | 72°F | Mostly Sunny | 3 to 7 mph NNE | 4% |
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 (7.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.