Louisville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Louisville, a village in Clay County, Illinois.
Today
85°F
Sunny
Sunny, with a high near 85. East southeast wind around 3 mph.
7-day forecast for Louisville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 3 mph ESE | 0% |
| Tonight | 64°F | Mostly Clear | 2 mph SE | 0% |
| Wednesday | 87°F | Sunny | 2 mph S | 0% |
| Wednesday Night | 68°F | Partly Cloudy then Chance Showers And Thunderstorms | 3 mph SSE | 26% |
| Thursday | 84°F | Chance Showers And Thunderstorms | 5 mph SSW | 52% |
| Thursday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph SSE | 59% |
| Friday | 84°F | Chance Showers And Thunderstorms | 3 mph SW | 47% |
| Friday Night | 68°F | Chance Showers And Thunderstorms | 1 mph SSW | 30% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 3 mph SSW | 30% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph S | 18% |
| Sunday | 88°F | Sunny | 3 to 8 mph SSW | 9% |
| Sunday Night | 71°F | Mostly Clear | 7 mph SSW | 8% |
| Monday | 90°F | Mostly Sunny | 8 mph SSW | 8% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms | 6 mph SSW | 16% |
Forecast source: National Weather Service (api.weather.gov) for Louisville (38.769, -88.507). Updated through the day.
Growing snapshot for Louisville
Last spring frost
Apr 10
First fall frost
Oct 23
Growing season
196 days
Hardiness zone
6b
More local growing data for Louisville: nearby ZIP 62858 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Flora 5 Nw, Il (8.3 mi from Louisville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.