Matherville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Matherville, a village in Mercer County, Illinois.
Overnight
66°F
Patchy Fog
Patchy fog and occasional showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. Low around 66, with temperatures rising to around 69 overnight. Northeast wind 0 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Matherville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Patchy Fog | 0 to 5 mph NE | 93% |
| Sunday | 70°F | Patchy Fog | 5 to 15 mph NE | 87% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 15 mph NE | 53% |
| Monday | 63°F | Rain Showers Likely | 15 mph NE | 71% |
| Monday Night | 54°F | Rain Showers Likely | 10 to 15 mph NE | 71% |
| Tuesday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 53% |
| Tuesday Night | 50°F | Mostly Cloudy | 5 to 10 mph NE | 8% |
| Wednesday | 65°F | Partly Sunny | 5 to 10 mph NE | 3% |
| Wednesday Night | 53°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Thursday | 68°F | Partly Sunny | 0 to 5 mph NE | 3% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 0 to 5 mph NE | 15% |
| Friday | 72°F | Slight Chance Rain Showers then Partly Sunny | 0 to 5 mph NE | 15% |
| Friday Night | 55°F | Partly Cloudy | 0 to 5 mph NE | 7% |
| Saturday | 72°F | Mostly Sunny | 0 to 5 mph E | 5% |
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 Sep 20, 2026.