Matherville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Matherville, a village in Mercer County, Illinois.
Today
54°F
Slight Chance Rain Showers
A slight chance of rain showers between 10am and 5pm. Cloudy. High near 54, with temperatures falling to around 52 in the afternoon. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
7-day forecast for Matherville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 54°F | Slight Chance Rain Showers | 15 mph SW | 22% |
| Tonight | 45°F | Mostly Cloudy | 15 mph SW | 11% |
| Thursday | 56°F | Chance Rain Showers | 10 to 15 mph W | 40% |
| Thursday Night | 41°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph NW | 17% |
| Friday | 51°F | Partly Sunny | 5 to 10 mph N | 5% |
| Friday Night | 31°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 52°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 33°F | Mostly Clear | 0 to 5 mph W | 2% |
| Sunday | 58°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 34°F | Clear | 0 to 5 mph W | 1% |
| Monday | 63°F | Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 0 to 5 mph W | 0% |
| Tuesday | 64°F | Sunny | 0 to 5 mph NW | 0% |
| Tuesday Night | 40°F | Partly Cloudy | 0 mph | 0% |
Forecast source: National Weather Service (api.weather.gov) for Matherville (41.259, -90.606). Updated through the day.
Growing snapshot for Matherville
Last spring frost
Apr 22
First fall frost
Oct 19
Growing season
181 days
Hardiness zone
5b
More local growing data for Matherville: nearby ZIP 61263 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Aledo, Il (9.1 mi from Matherville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.