Pekin, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pekin, a city in Tazewell County, Illinois.
Tonight
54°F
Rain
Rain before 3am, then a slight chance of rain showers. Mostly cloudy, with a low around 54. South southwest wind 12 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Pekin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Rain | 12 to 16 mph SSW | 92% |
| Wednesday | 60°F | Slight Chance Rain Showers then Mostly Cloudy | 12 to 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 | 44°F | Mostly Cloudy then Chance Light Rain | 3 to 7 mph NW | 28% |
| Friday | 55°F | Partly Sunny then Slight Chance Light Rain | 9 mph N | 16% |
| Friday Night | 37°F | Mostly Cloudy | 1 to 7 mph NNW | 3% |
| Saturday | 54°F | Mostly Sunny | 3 mph WNW | 2% |
| Saturday Night | 36°F | Partly Cloudy | 2 mph W | 3% |
| Sunday | 60°F | Sunny | 2 to 8 mph WNW | 12% |
| Sunday Night | 37°F | Mostly Clear | 5 mph W | 4% |
| Monday | 64°F | Sunny | 2 to 9 mph SW | 2% |
| Monday Night | 41°F | Mostly Clear | 2 to 6 mph WSW | 1% |
| Tuesday | 66°F | Sunny | 2 to 6 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Pekin (40.569, -89.625). Updated through the day.
Growing snapshot for Pekin
Last spring frost
Apr 16
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
6a
More local growing data for Pekin: nearby ZIP 61554 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Armington
Creve Coeur
Deer Creek
Delavan
East Peoria
Green Valley
Heritage Lake
Hopedale
Mackinaw
Manito
Marquette Heights
Minier
Morton
North Pekin
South Pekin
Tremont
Washington
Climate data from the nearest NOAA station, Peoria Gtr Peoria Ap, Il (9.2 mi from Pekin). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.