Colona, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colona, a city in Henry County, Illinois.
Tonight
67°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1am. Mostly cloudy. Low around 67, with temperatures rising to around 69 overnight. Southeast wind around 10 mph. Chance of precipitation is 50%.
7-day forecast for Colona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 mph SE | 49% |
| Saturday | 83°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph S | 67% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph N | 80% |
| Sunday | 72°F | Showers And Thunderstorms | 10 to 15 mph NE | 80% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 15 mph NE | 59% |
| Monday | 65°F | Rain Showers Likely | 15 mph NE | 59% |
| Monday Night | 52°F | Chance Rain Showers | 10 to 15 mph NE | 50% |
| Tuesday | 64°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 44% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 68°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph NE | 2% |
| Thursday | 69°F | Mostly Sunny | 5 mph NE | 5% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 5 mph NE | 6% |
| Friday | 71°F | Mostly Sunny | 5 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Colona (41.473, -90.332). Updated through the day.
Growing snapshot for Colona
Last spring frost
Apr 16
First fall frost
Oct 25
Growing season
190 days
Hardiness zone
5b
More local growing data for Colona: nearby ZIP 61241 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Le Claire L&D 14, Ia (7.3 mi from Colona). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.