Columbus Junction, IA Weather & Growing Conditions
This Afternoon
84°F
Slight Chance Showers And Thunderstorms
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 84. South wind around 10 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Slight Chance Showers And Thunderstorms | 10 mph S | 32% |
| Tonight | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph W | 82% |
| Sunday | 72°F | Showers And Thunderstorms | 10 to 15 mph NE | 77% |
| Sunday Night | 58°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 to 15 mph NE | 61% |
| Monday | 65°F | Showers And Thunderstorms Likely | 15 mph NE | 61% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 51% |
| Tuesday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 31% |
| Tuesday Night | 48°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 67°F | Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 69°F | Mostly Sunny | 5 mph NE | 6% |
| Thursday Night | 55°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 72°F | Mostly Sunny | 5 mph E | 5% |
| Friday Night | 55°F | Partly Cloudy | 5 mph E | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Columbus Junction, IA
Last spring frost
Apr 26
First fall frost
Oct 10
Growing season
167 days
Hardiness zone
5b
Explore more for Columbus Junction, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Columbus Junction, Ia (1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.