La Grange, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for La Grange, a village in Cook County, Illinois.
Overnight
65°F
Mostly Clear
Mostly clear, with a low around 65. South wind around 5 mph.
7-day forecast for La Grange
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 65°F | Mostly Clear | 5 mph S | 0% |
| Tuesday | 86°F | Mostly Sunny | 5 to 10 mph SSW | 3% |
| Tuesday Night | 69°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 20% |
| Wednesday | 81°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph WSW | 67% |
| Wednesday Night | 67°F | Showers And Thunderstorms | 5 mph W | 90% |
| Thursday | 79°F | Rain Showers Likely | 5 mph ENE | 74% |
| Thursday Night | 64°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 29% |
| Friday | 83°F | Mostly Sunny | 0 to 5 mph SSW | 4% |
| Friday Night | 66°F | Mostly Clear | 0 to 5 mph S | 8% |
| Saturday | 85°F | Mostly Sunny | 5 to 10 mph SSW | 9% |
| Saturday Night | 71°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 18% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SW | 18% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 42% |
| Monday | 86°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 42% |
Forecast source: National Weather Service (api.weather.gov) for La Grange (41.807, -87.874). Updated through the day.
Growing snapshot for La Grange
Last spring frost
Apr 19
First fall frost
Oct 22
Growing season
183 days
Hardiness zone
6a
More local growing data for La Grange: nearby ZIP 60525 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Little Red School Hse, Il (5.2 mi from La Grange). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.