Coal Valley, IL Weather & Growing Conditions
This Afternoon
80°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 80, with temperatures falling to around 77 in the afternoon. South wind around 5 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Chance Showers And Thunderstorms | 5 mph S | 26% |
| Tonight | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph S | 88% |
| Sunday | 69°F | Patchy Fog | 10 to 15 mph NE | 72% |
| Sunday Night | 57°F | Chance Rain Showers | 15 mph NE | 50% |
| Monday | 63°F | Rain Showers Likely | 15 mph NE | 68% |
| Monday Night | 53°F | Rain Showers Likely | 10 to 15 mph NE | 64% |
| Tuesday | 62°F | Rain Showers Likely | 15 mph NE | 55% |
| Tuesday Night | 50°F | Mostly Cloudy | 5 to 10 mph NE | 7% |
| Wednesday | 65°F | Partly Sunny | 10 mph NE | 5% |
| Wednesday Night | 53°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Thursday | 68°F | Partly Sunny | 5 mph NE | 5% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 0 to 5 mph NE | 15% |
| Friday | 71°F | Partly Sunny | 5 mph NE | 12% |
| Friday Night | 55°F | Partly Cloudy | 5 mph NE | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Coal Valley, IL
Last spring frost
Apr 24
First fall frost
Oct 18
Growing season
176 days
Hardiness zone
5b
Explore more for Coal Valley, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Moline Quad City Intl Ap, Il (5.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.