Andalusia, IL Weather & Growing Conditions
Today
88°F
Mostly Sunny
Mostly sunny. High near 88, with temperatures falling to around 85 in the afternoon. Southwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny | 5 to 10 mph SW | 10% |
| Tonight | 69°F | Chance Showers And Thunderstorms | 5 mph NE | 77% |
| Wednesday | 80°F | Showers And Thunderstorms | 5 mph NE | 80% |
| Wednesday Night | 64°F | Showers And Thunderstorms | 0 to 5 mph N | 75% |
| Thursday | 81°F | Chance Rain Showers then Mostly Sunny | 0 to 5 mph NE | 47% |
| Thursday Night | 64°F | Mostly Clear | 0 to 5 mph NE | 8% |
| Friday | 83°F | Mostly Sunny | 0 to 5 mph S | 5% |
| Friday Night | 67°F | Mostly Clear | 0 to 5 mph S | 11% |
| Saturday | 86°F | Sunny | 5 mph S | 9% |
| Saturday Night | 72°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 15% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 mph SW | 15% |
| Sunday Night | 72°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 32% |
| Monday | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 32% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 10 mph SE | 33% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Andalusia, IL
Last spring frost
Apr 19
First fall frost
Oct 22
Growing season
184 days
Hardiness zone
5b
Explore more for Andalusia, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Rock Island L&D 15, Il (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.