Seaton, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seaton, a village in Mercer County, Illinois.
Tonight
46°F
Patchy Drizzle
Patchy drizzle. Cloudy. Low around 46, with temperatures rising to around 48 overnight. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
7-day forecast for Seaton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Patchy Drizzle | 10 to 15 mph SW | 14% |
| Thursday | 52°F | Chance Rain Showers | 10 to 15 mph W | 40% |
| Thursday Night | 39°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph N | 20% |
| Friday | 49°F | Mostly Sunny | 5 to 10 mph N | 1% |
| Friday Night | 29°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 32°F | Mostly Clear | 0 mph | 0% |
| Sunday | 59°F | Sunny | 0 to 5 mph W | 0% |
| Sunday Night | 34°F | Clear | 0 mph | 0% |
| Monday | 64°F | Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 39°F | Clear | 0 to 5 mph SW | 0% |
| Tuesday | 63°F | Sunny | 0 to 5 mph NW | 2% |
| Tuesday Night | 39°F | Partly Cloudy | 0 mph | 1% |
| Veterans Day | 63°F | Mostly Sunny | 0 to 5 mph N | 1% |
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
Nearby towns & communities
Aledo
Alexis
Cable
Eliza
Hamlet
Joy
Keithsburg
Matherville
Millersburg
New Boston
North Henderson
Preemption
Reynolds
Sherrard
Viola
Windsor
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 Nov 5, 2026.