Niles, IL Weather & Growing Conditions
Tonight
64°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. Low around 64, with temperatures rising to around 67 overnight. East wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Showers And Thunderstorms | 5 mph E | 100% |
| Sunday | 66°F | Showers And Thunderstorms | 10 to 15 mph NE | 87% |
| Sunday Night | 57°F | Slight Chance Rain Showers then Mostly Cloudy | 15 mph ENE | 21% |
| Monday | 65°F | Chance Rain Showers | 15 mph ENE | 34% |
| Monday Night | 55°F | Slight Chance Rain Showers | 10 to 15 mph ENE | 20% |
| Tuesday | 63°F | Slight Chance Rain Showers | 10 to 15 mph NE | 21% |
| Tuesday Night | 55°F | Slight Chance Rain Showers | 10 to 15 mph NE | 17% |
| Wednesday | 64°F | Slight Chance Rain Showers | 10 mph NE | 16% |
| Wednesday Night | 55°F | Mostly Cloudy | 5 to 10 mph NE | 8% |
| Thursday | 66°F | Partly Sunny | 5 to 10 mph NE | 3% |
| Thursday Night | 56°F | Mostly Cloudy | 0 to 5 mph NE | 13% |
| Friday | 69°F | Partly Sunny | 0 to 10 mph NE | 12% |
| Friday Night | 57°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Saturday | 71°F | Mostly Sunny | 0 to 5 mph ENE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Niles, IL
Last spring frost
Apr 16
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
6a
Explore more for Niles, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Chicago Ohare Intl Ap, Il (6.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.