Johnsonville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Johnsonville, a village in Wayne County, Illinois.
Tonight
57°F
Rain Showers
Rain showers. Mostly cloudy. Low around 57, with temperatures rising to around 59 overnight. South wind 10 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 100%.
7-day forecast for Johnsonville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Rain Showers | 10 to 18 mph S | 97% |
| Wednesday | 66°F | Partly Sunny | 7 to 13 mph WSW | 13% |
| Wednesday Night | 44°F | Partly Cloudy | 5 mph WSW | 0% |
| Thursday | 67°F | Sunny | 3 to 12 mph WSW | 0% |
| Thursday Night | 44°F | Partly Cloudy | 3 mph WNW | 5% |
| Friday | 60°F | Mostly Cloudy | 3 to 10 mph NNW | 2% |
| Friday Night | 39°F | Partly Cloudy | 2 to 7 mph NNW | 1% |
| Saturday | 56°F | Mostly Sunny | 5 mph NNW | 0% |
| Saturday Night | 35°F | Partly Cloudy | 1 mph NW | 1% |
| Sunday | 61°F | Sunny | 1 to 8 mph W | 6% |
| Sunday Night | 35°F | Mostly Clear | 3 mph NW | 5% |
| Monday | 64°F | Sunny | 1 to 9 mph W | 2% |
| Monday Night | 39°F | Mostly Clear | 5 mph SW | 0% |
| Tuesday | 68°F | Sunny | 2 to 7 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Johnsonville (38.521, -88.538). Updated through the day.
Growing snapshot for Johnsonville
Last spring frost
Apr 9
First fall frost
Oct 24
Growing season
198 days
Hardiness zone
6b
More local growing data for Johnsonville: nearby ZIP 62850 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Flora, Il (14.1 mi from Johnsonville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.