Colona, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colona, a city in Henry County, Illinois.
Overnight
63°F
Mostly Clear
Mostly clear, with a low around 63. South wind around 5 mph.
7-day forecast for Colona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Mostly Clear | 5 mph S | 0% |
| Tuesday | 86°F | Mostly Sunny | 5 to 10 mph SW | 7% |
| Tuesday Night | 68°F | Showers And Thunderstorms Likely | 5 mph SW | 67% |
| Wednesday | 79°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph NW | 73% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 0 to 5 mph N | 76% |
| Thursday | 80°F | Slight Chance Showers And Thunderstorms | 5 mph NE | 51% |
| Thursday Night | 62°F | Mostly Clear | 0 to 5 mph E | 12% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph S | 6% |
| Friday Night | 65°F | Mostly Clear | 5 mph S | 9% |
| Saturday | 85°F | Sunny | 5 to 10 mph S | 9% |
| Saturday Night | 71°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 15% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms then Sunny | 10 to 15 mph SW | 15% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms | 10 mph S | 34% |
| Monday | 86°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 mph S | 34% |
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 Aug 4, 2026.