Lyons, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lyons, a village in Cook County, Illinois.
Overnight
66°F
Mostly Clear
Mostly clear, with a low around 66. South wind around 5 mph.
7-day forecast for Lyons
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Mostly Clear | 5 mph S | 0% |
| Tuesday | 86°F | Mostly Sunny | 5 to 10 mph SSW | 2% |
| Tuesday Night | 69°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SSW | 19% |
| Wednesday | 82°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph WSW | 66% |
| Wednesday Night | 66°F | Showers And Thunderstorms | 5 mph W | 90% |
| Thursday | 78°F | Rain Showers | 0 to 5 mph NE | 75% |
| Thursday Night | 64°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 30% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph S | 5% |
| Friday Night | 66°F | Mostly Clear | 0 to 5 mph S | 8% |
| Saturday | 85°F | Mostly Sunny | 5 to 10 mph SW | 9% |
| Saturday Night | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 18% |
| Sunday | 87°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 SW | 43% |
| Monday | 86°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 43% |
Forecast source: National Weather Service (api.weather.gov) for Lyons (41.812, -87.819). Updated through the day.
Growing snapshot for Lyons
Last spring frost
Apr 11
First fall frost
Oct 31
Growing season
201 days
Hardiness zone
6a
More local growing data for Lyons: nearby ZIP 60534 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Chicago Midway Ap, Il (3.9 mi from Lyons). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.