Colona, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colona, a city in Henry County, Illinois.
Overnight
52°F
Mostly Cloudy
Mostly cloudy. Low around 52, with temperatures rising to around 55 overnight. Southwest wind 10 to 15 mph.
7-day forecast for Colona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Mostly Cloudy | 10 to 15 mph SW | 9% |
| Wednesday | 58°F | Slight Chance Rain Showers | 15 mph SW | 24% |
| Wednesday Night | 46°F | Mostly Cloudy | 15 mph SW | 11% |
| Thursday | 56°F | Chance Rain Showers | 10 to 15 mph W | 38% |
| Thursday Night | 41°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph NW | 17% |
| Friday | 51°F | Partly Sunny | 5 to 10 mph N | 6% |
| Friday Night | 32°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 52°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 34°F | Mostly Clear | 5 mph W | 2% |
| Sunday | 58°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 35°F | Clear | 5 mph SW | 1% |
| Monday | 63°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 to 10 mph W | 0% |
| Tuesday | 64°F | Sunny | 5 mph NW | 0% |
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 Nov 4, 2026.