Louisville, IL Weather & Growing Conditions
Today
85°F
Sunny
Sunny, with a high near 85. East southeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 2 mph ESE | 0% |
| Tonight | 64°F | Mostly Clear | 2 mph SE | 0% |
| Wednesday | 87°F | Sunny | 0 to 3 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 | 58% |
| Friday | 85°F | Chance Showers And Thunderstorms | 5 mph SW | 44% |
| Friday Night | 68°F | Chance Showers And Thunderstorms | 1 mph SSW | 29% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 3 mph SSW | 29% |
| 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 | 72°F | Mostly Clear | 6 mph SSW | 8% |
| Monday | 90°F | Mostly Sunny | 8 mph SSW | 8% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms | 6 mph SSW | 17% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Louisville, IL
Last spring frost
Apr 10
First fall frost
Oct 23
Growing season
196 days
Hardiness zone
6b
Explore more for Louisville, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Flora 5 Nw, Il (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.