Pekin, IL Weather & Growing Conditions
Tonight
54°F
Light Rain
Rain and a slight chance of thunderstorms. Mostly cloudy, with a low around 54. South wind 13 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Light Rain | 13 to 18 mph S | 81% |
| Wednesday | 60°F | Slight Chance Light Rain then Mostly Cloudy | 15 mph SW | 17% |
| Wednesday Night | 46°F | Mostly Cloudy | 12 mph SW | 3% |
| Thursday | 59°F | Partly Sunny | 8 to 13 mph WSW | 9% |
| Thursday Night | 43°F | Mostly Cloudy then Chance Light Rain | 3 to 7 mph NW | 27% |
| Friday | 55°F | Mostly Cloudy then Slight Chance Light Rain | 9 mph N | 16% |
| Friday Night | 37°F | Partly Cloudy | 1 to 7 mph NNW | 3% |
| Saturday | 54°F | Mostly Sunny | 3 mph WNW | 2% |
| Saturday Night | 35°F | Partly Cloudy | 2 mph W | 3% |
| Sunday | 60°F | Sunny | 2 to 8 mph WNW | 12% |
| Sunday Night | 36°F | Mostly Clear | 5 mph W | 4% |
| Monday | 64°F | Sunny | 2 to 10 mph SW | 2% |
| Monday Night | 41°F | Mostly Clear | 3 to 7 mph WSW | 1% |
| Tuesday | 66°F | Sunny | 6 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Pekin, IL
Last spring frost
Apr 16
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
6a
Explore more for Pekin, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Peoria Gtr Peoria Ap, Il (9.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.