Smithville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smithville, a community in Peoria County, Illinois.
This Afternoon
69°F
Light Rain
Rain and a slight chance of thunderstorms. Mostly cloudy, with a high near 69. South wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Smithville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Light Rain | 17 mph S | 83% |
| Tonight | 53°F | Light Rain | 14 to 18 mph S | 78% |
| Wednesday | 59°F | Slight Chance Light Rain then Mostly Cloudy | 14 to 17 mph SW | 16% |
| Wednesday Night | 46°F | Mostly Cloudy | 13 mph SW | 4% |
| Thursday | 58°F | Partly Sunny | 8 to 14 mph WSW | 12% |
| Thursday Night | 43°F | Chance Light Rain | 5 to 8 mph NW | 29% |
| Friday | 54°F | Slight Chance Light Rain | 12 mph N | 15% |
| Friday Night | 36°F | Mostly Cloudy | 1 to 8 mph NNW | 3% |
| Saturday | 53°F | Mostly Sunny | 1 to 5 mph WNW | 2% |
| Saturday Night | 35°F | Partly Cloudy | 3 mph W | 3% |
| Sunday | 59°F | Sunny | 3 to 8 mph WNW | 13% |
| Sunday Night | 35°F | Mostly Clear | 2 to 6 mph W | 4% |
| Monday | 64°F | Sunny | 3 to 10 mph SW | 2% |
| Monday Night | 40°F | Mostly Clear | 5 to 8 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Smithville (40.659, -89.803). Updated through the day.
Growing snapshot for Smithville
Last spring frost
Apr 16
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
6a
More local growing data for Smithville: nearby ZIP 61536 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Peoria Gtr Peoria Ap, Il (5.8 mi from Smithville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.