Colo, IA Weather & Growing Conditions
Today
80°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 8am. Mostly cloudy. High near 80, with temperatures falling to around 76 in the afternoon. West northwest wind 5 to 9 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Chance Showers And Thunderstorms | 5 to 9 mph WNW | 31% |
| Tonight | 61°F | Showers And Thunderstorms | 5 to 9 mph NNE | 91% |
| Wednesday | 73°F | Chance Showers And Thunderstorms | 5 mph NE | 54% |
| Wednesday Night | 55°F | Slight Chance Rain Showers | 3 mph NE | 24% |
| Thursday | 79°F | Sunny | 3 mph E | 2% |
| Thursday Night | 61°F | Mostly Clear | 3 mph SE | 1% |
| Friday | 83°F | Sunny | 2 to 8 mph SSE | 8% |
| Friday Night | 66°F | Mostly Clear | 6 mph SSE | 14% |
| Saturday | 87°F | Sunny | 3 to 8 mph S | 14% |
| Saturday Night | 70°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 10 mph S | 16% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 mph SSE | 16% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 9 mph SSE | 33% |
| Monday | 87°F | Chance Showers And Thunderstorms | 8 to 12 mph S | 33% |
| Monday Night | 70°F | Partly Cloudy then Chance Showers And Thunderstorms | 10 mph E | 28% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Colo, IA
Last spring frost
Apr 24
First fall frost
Oct 12
Growing season
170 days
Hardiness zone
5a
Explore more for Colo, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Colo, Ia (1.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.