Colo, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colo, a city in Story County, Iowa.
Overnight
46°F
Chance Rain Showers
A chance of rain showers. Cloudy. Low around 46, with temperatures rising to around 49 overnight. West northwest wind around 12 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Colo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Chance Rain Showers | 12 mph WNW | 33% |
| Wednesday | 52°F | Chance Rain Showers | 12 to 15 mph W | 25% |
| Wednesday Night | 43°F | Cloudy then Chance Rain Showers | 13 mph W | 26% |
| Thursday | 52°F | Rain Showers Likely | 12 mph NW | 63% |
| Thursday Night | 40°F | Mostly Cloudy | 8 mph N | 13% |
| Friday | 52°F | Partly Sunny | 3 to 7 mph N | 3% |
| Friday Night | 33°F | Partly Cloudy | 2 mph NNW | 0% |
| Saturday | 56°F | Mostly Sunny | 0 to 3 mph WSW | 1% |
| Saturday Night | 37°F | Mostly Clear | 3 mph W | 3% |
| Sunday | 61°F | Sunny | 6 mph W | 5% |
| Sunday Night | 39°F | Mostly Clear | 5 mph SW | 1% |
| Monday | 65°F | Sunny | 5 to 9 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 63°F | Mostly Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Colo (42.015, -93.319). Updated through the day.
Growing snapshot for Colo
Last spring frost
Apr 24
First fall frost
Oct 12
Growing season
170 days
Hardiness zone
5a
More local growing data for Colo: nearby ZIP 50056 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Colo, Ia (1.2 mi from Colo). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.