Pekin, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pekin, a city in Tazewell County, Illinois.
Today
86°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 86. Southeast wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Pekin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Chance Showers And Thunderstorms | 7 mph SE | 27% |
| Tonight | 69°F | Showers And Thunderstorms Likely | 2 to 6 mph S | 58% |
| Sunday | 76°F | Showers And Thunderstorms Likely | 2 to 12 mph N | 70% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 14 mph NE | 61% |
| Monday | 66°F | Showers And Thunderstorms Likely | 14 mph ENE | 64% |
| Monday Night | 55°F | Chance Rain Showers | 10 to 14 mph NE | 47% |
| Tuesday | 65°F | Slight Chance Rain Showers | 13 mph NE | 20% |
| Tuesday Night | 52°F | Partly Cloudy | 6 to 12 mph NNE | 11% |
| Wednesday | 69°F | Mostly Sunny | 9 mph NNE | 4% |
| Wednesday Night | 54°F | Partly Cloudy | 3 to 8 mph NNE | 1% |
| Thursday | 70°F | Mostly Sunny | 6 mph NNE | 2% |
| Thursday Night | 56°F | Partly Cloudy | 5 mph NE | 2% |
| Friday | 73°F | Mostly Sunny | 3 to 7 mph NE | 3% |
| Friday Night | 55°F | Partly Cloudy | 6 mph NE | 3% |
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.