Louisville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Louisville, a village in Clay County, Illinois.
Today
96°F
Mostly Sunny
Mostly sunny, with a high near 96. West southwest wind around 8 mph.
7-day forecast for Louisville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 96°F | Mostly Sunny | 8 mph WSW | 8% |
| Tonight | 71°F | Partly Cloudy | 5 mph SSW | 3% |
| Sunday | 93°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph WNW | 18% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 8 mph NNE | 51% |
| Monday | 78°F | Showers And Thunderstorms Likely | 8 to 12 mph NE | 65% |
| Monday Night | 57°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 7 to 12 mph NE | 65% |
| Tuesday | 72°F | Chance Showers And Thunderstorms | 12 mph NNE | 27% |
| Tuesday Night | 54°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 12 mph NNE | 21% |
| Wednesday | 74°F | Mostly Sunny | 6 to 10 mph N | 4% |
| Wednesday Night | 54°F | Partly Cloudy | 2 to 8 mph N | 3% |
| Thursday | 75°F | Mostly Sunny | 5 to 8 mph N | 2% |
| Thursday Night | 56°F | Partly Cloudy | 2 to 7 mph NNE | 3% |
| Friday | 77°F | Mostly Sunny | 3 to 8 mph NNE | 3% |
| Friday Night | 54°F | Partly Cloudy | 3 to 7 mph NE | 2% |
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 Sep 19, 2026.