Peoria, IL Weather & Growing Conditions
Today
85°F
Slight Chance Rain Showers then Cloudy
A slight chance of rain showers before 11am. Cloudy, with a high near 85. Southeast wind around 8 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 |
|---|---|---|---|---|
| Today | 85°F | Slight Chance Rain Showers then Cloudy | 8 mph SE | 16% |
| Tonight | 68°F | Showers And Thunderstorms Likely | 2 to 6 mph SW | 74% |
| Sunday | 75°F | Showers And Thunderstorms Likely | 3 to 14 mph N | 71% |
| Sunday Night | 58°F | Chance Showers And Thunderstorms | 13 to 16 mph NE | 58% |
| Monday | 66°F | Showers And Thunderstorms Likely | 15 mph ENE | 65% |
| Monday Night | 54°F | Chance Rain Showers | 10 to 15 mph NE | 46% |
| Tuesday | 64°F | Slight Chance Rain Showers | 15 mph NE | 22% |
| Tuesday Night | 51°F | Partly Cloudy | 6 to 14 mph NNE | 11% |
| Wednesday | 68°F | Mostly Sunny | 10 mph NNE | 4% |
| Wednesday Night | 53°F | Partly Cloudy | 3 to 9 mph NNE | 1% |
| Thursday | 70°F | Mostly Sunny | 7 mph NNE | 4% |
| Thursday Night | 55°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
5b
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 (7.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.