Lyons, IL Weather & Growing Conditions
Overnight
61°F
Rain Showers
Rain showers. Cloudy. Low around 61, with temperatures rising to around 64 overnight. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Rain Showers | 15 mph S | 81% |
| Wednesday | 64°F | Chance Rain Showers | 15 mph SSW | 38% |
| Wednesday Night | 49°F | Mostly Cloudy | 15 mph SW | 12% |
| Thursday | 57°F | Mostly Cloudy then Chance Rain Showers | 10 to 15 mph WSW | 42% |
| Thursday Night | 44°F | Rain Showers Likely | 10 to 15 mph NW | 59% |
| Friday | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 15 mph NNW | 18% |
| Friday Night | 38°F | Partly Cloudy | 5 to 10 mph NNW | 5% |
| Saturday | 51°F | Mostly Sunny | 5 mph NW | 1% |
| Saturday Night | 37°F | Mostly Clear | 5 mph W | 0% |
| Sunday | 56°F | Sunny | 5 to 10 mph W | 6% |
| Sunday Night | 39°F | Mostly Clear | 5 to 10 mph W | 2% |
| Monday | 60°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 43°F | Mostly Clear | 5 to 10 mph WSW | 1% |
| Tuesday | 61°F | Sunny | 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lyons, IL
Last spring frost
Apr 11
First fall frost
Oct 31
Growing season
201 days
Hardiness zone
6a
Explore more for Lyons, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Chicago Midway Ap, Il (3.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.