Seaton, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seaton, a village in Mercer County, Illinois.
Overnight
62°F
Mostly Clear
Mostly clear, with a low around 62. Southeast wind around 5 mph.
7-day forecast for Seaton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Mostly Clear | 5 mph SE | 0% |
| Tuesday | 87°F | Mostly Sunny | 5 to 10 mph S | 5% |
| Tuesday Night | 68°F | Showers And Thunderstorms Likely | 5 mph E | 55% |
| Wednesday | 80°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph NE | 73% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 0 to 5 mph N | 83% |
| Thursday | 81°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph NE | 66% |
| Thursday Night | 62°F | Mostly Clear | 0 mph | 10% |
| Friday | 83°F | Mostly Sunny | 0 to 5 mph S | 8% |
| Friday Night | 65°F | Mostly Clear | 0 to 5 mph S | 13% |
| Saturday | 86°F | Sunny | 5 mph S | 10% |
| Saturday Night | 70°F | Mostly Clear | 5 to 10 mph S | 10% |
| Sunday | 87°F | Sunny | 10 mph SW | 10% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 27% |
| Monday | 87°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 27% |
Forecast source: National Weather Service (api.weather.gov) for Seaton (41.102, -90.799). Updated through the day.
Growing snapshot for Seaton
Last spring frost
Apr 22
First fall frost
Oct 19
Growing season
181 days
Hardiness zone
5b
More local growing data for Seaton: nearby ZIP 61476 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Aledo, Il (8.7 mi from Seaton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.