Louisville, IL Weather & Growing Conditions
This Afternoon
77°F
Slight Chance Light Rain
A slight chance of rain. Partly sunny, with a high near 77. South southeast wind around 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Slight Chance Light Rain | 17 mph SSE | 18% |
| Tonight | 56°F | Slight Chance T-storms then Rain | 10 to 16 mph S | 86% |
| Wednesday | 65°F | Chance Rain Showers then Mostly Cloudy | 7 to 13 mph SW | 14% |
| Wednesday Night | 43°F | Mostly Cloudy | 5 mph WSW | 0% |
| Thursday | 66°F | Sunny | 5 to 10 mph WSW | 0% |
| Thursday Night | 44°F | Mostly Cloudy | 2 mph WNW | 3% |
| Friday | 59°F | Mostly Cloudy | 2 to 9 mph NNW | 3% |
| Friday Night | 38°F | Partly Cloudy | 2 to 6 mph NNW | 1% |
| Saturday | 56°F | Mostly Sunny | 5 mph NNW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 1 mph NW | 1% |
| Sunday | 61°F | Sunny | 1 to 7 mph W | 6% |
| Sunday Night | 34°F | Mostly Clear | 3 mph NW | 6% |
| Monday | 64°F | Sunny | 1 to 8 mph W | 2% |
| Monday Night | 38°F | Mostly Clear | 3 mph SW | 1% |
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 Nov 4, 2026.