Colo, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colo, a city in Story County, Iowa.
This Afternoon
79°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 79, with temperatures falling to around 74 in the afternoon. North northwest wind around 8 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 |
|---|---|---|---|---|
| This Afternoon | 79°F | Chance Showers And Thunderstorms | 8 mph NNW | 29% |
| Tonight | 60°F | Chance Showers And Thunderstorms | 9 mph N | 47% |
| Sunday | 65°F | Chance Drizzle | 13 mph NE | 38% |
| Sunday Night | 56°F | Chance Drizzle then Rain Showers Likely | 13 mph ENE | 55% |
| Monday | 59°F | Rain Showers | 12 mph NE | 81% |
| Monday Night | 51°F | Rain Showers | 7 to 10 mph NE | 79% |
| Tuesday | 60°F | Slight Chance Rain Showers then Partly Sunny | 8 mph NE | 16% |
| Tuesday Night | 47°F | Partly Cloudy | 6 mph ENE | 4% |
| Wednesday | 64°F | Mostly Sunny | 5 mph ENE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 3 mph E | 7% |
| Thursday | 66°F | Slight Chance Rain Showers | 5 mph SE | 19% |
| Thursday Night | 57°F | Slight Chance Rain Showers | 2 mph ESE | 21% |
| Friday | 68°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph E | 21% |
| Friday Night | 58°F | Mostly Cloudy | 3 mph E | 9% |
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 Sep 20, 2026.