Chadwick, IL Weather & Growing Conditions
Overnight
63°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4am, then showers and thunderstorms likely. Some of the storms could produce heavy rain. Mostly cloudy. Low around 63, with temperatures rising to around 65 overnight. Southeast wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Chance Showers And Thunderstorms | 10 mph SE | 66% |
| Saturday | 79°F | Showers And Thunderstorms | 5 to 10 mph SE | 82% |
| Saturday Night | 62°F | Showers And Thunderstorms | 5 to 10 mph NW | 77% |
| Sunday | 69°F | Rain Showers | 10 to 15 mph NE | 76% |
| Sunday Night | 54°F | Rain Showers Likely | 15 mph NE | 60% |
| Monday | 65°F | Chance Rain Showers | 15 mph NE | 49% |
| Monday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 42% |
| Tuesday | 62°F | Chance Rain Showers | 15 mph NE | 28% |
| Tuesday Night | 47°F | Partly Cloudy | 5 to 15 mph NE | 7% |
| Wednesday | 67°F | Mostly Sunny | 10 mph NE | 2% |
| Wednesday Night | 50°F | Partly Cloudy | 5 mph NE | 2% |
| Thursday | 68°F | Mostly Sunny | 5 mph NE | 4% |
| Thursday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 70°F | Mostly Sunny | 5 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Chadwick, IL
Last spring frost
May 2
First fall frost
Oct 7
Growing season
154 days
Hardiness zone
5a
Explore more for Chadwick, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Mt Carroll, Il (9.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.