Pekin, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pekin, a city in Tazewell County, Illinois.
This Afternoon
81°F
Mostly Sunny
Mostly sunny, with a high near 81. East wind around 8 mph.
7-day forecast for Pekin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Mostly Sunny | 8 mph E | 3% |
| Tonight | 70°F | Partly Cloudy | 9 mph SE | 6% |
| Saturday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 8 mph S | 21% |
| Saturday Night | 69°F | Showers And Thunderstorms Likely | 7 mph E | 55% |
| Sunday | 78°F | Rain Showers Likely | 3 to 12 mph NNE | 68% |
| Sunday Night | 60°F | Showers And Thunderstorms Likely | 13 mph NE | 68% |
| Monday | 68°F | Showers And Thunderstorms Likely | 13 mph ENE | 68% |
| Monday Night | 55°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 45% |
| Tuesday | 66°F | Chance Rain Showers then Mostly Cloudy | 13 mph NE | 27% |
| Tuesday Night | 52°F | Mostly Cloudy | 5 to 10 mph NNE | 5% |
| Wednesday | 69°F | Mostly Sunny | 8 mph NNE | 4% |
| Wednesday Night | 54°F | Partly Cloudy | 2 to 7 mph NNE | 2% |
| Thursday | 70°F | Mostly Sunny | 6 mph NNE | 3% |
| Thursday Night | 56°F | Partly Cloudy | 5 mph NNE | 2% |
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 Sep 19, 2026.