Crest Hill, IL Weather & Growing Conditions
Tonight
64°F
Slight Chance Rain Showers then Chance Showers And Thunderstorms
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 10 mph E | 40% |
| Saturday | 79°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 78% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NNW | 82% |
| Sunday | 70°F | Showers And Thunderstorms | 10 to 15 mph NNE | 82% |
| Sunday Night | 57°F | Rain Showers Likely | 15 mph NE | 68% |
| Monday | 66°F | Rain Showers Likely | 15 mph ENE | 57% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph ENE | 32% |
| Tuesday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 26% |
| Tuesday Night | 53°F | Mostly Cloudy | 5 to 10 mph NE | 14% |
| Wednesday | 67°F | Partly Sunny | 5 to 10 mph NNE | 6% |
| Wednesday Night | 53°F | Mostly Cloudy | 5 to 10 mph NNE | 5% |
| Thursday | 70°F | Partly Sunny | 5 to 10 mph NNE | 5% |
| Thursday Night | 55°F | Mostly Cloudy | 5 mph NNE | 3% |
| Friday | 71°F | Mostly Sunny | 5 to 10 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Crest Hill, IL
Last spring frost
Apr 20
First fall frost
Oct 22
Growing season
184 days
Hardiness zone
6a
Explore more for Crest Hill, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Romeoville Wfo, Il (3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.