Sioux Center, IA Weather & Growing Conditions
Today
68°F
Areas Of Fog then Cloudy
Areas of fog and a chance of rain showers before 10am. Cloudy. High near 68, with temperatures falling to around 65 in the afternoon. North wind 5 to 10 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 | 68°F | Areas Of Fog then Cloudy | 5 to 10 mph N | 30% |
| Tonight | 56°F | Cloudy | 10 mph NNE | 8% |
| Sunday | 65°F | Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 21% |
| Sunday Night | 52°F | Rain Showers Likely | 10 mph ENE | 58% |
| Monday | 59°F | Rain Showers Likely | 10 mph ENE | 58% |
| Monday Night | 47°F | Chance Rain Showers then Mostly Cloudy | 5 mph E | 32% |
| Tuesday | 62°F | Partly Sunny | 5 to 10 mph E | 3% |
| Tuesday Night | 44°F | Partly Cloudy | 5 mph ESE | 2% |
| Wednesday | 65°F | Mostly Sunny | 5 to 10 mph SE | 5% |
| Wednesday Night | 50°F | Partly Cloudy then Chance Rain Showers | 5 mph SE | 27% |
| Thursday | 67°F | Chance Rain Showers | 5 to 10 mph SSE | 27% |
| Thursday Night | 53°F | Mostly Cloudy | 5 mph SE | 14% |
| Friday | 70°F | Slight Chance Rain Showers | 5 to 10 mph SE | 15% |
| Friday Night | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph SE | 23% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sioux Center, IA
Last spring frost
Apr 30
First fall frost
Oct 3
Growing season
154 days
Hardiness zone
5a
Explore more for Sioux Center, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Sioux Ctr 2 Se, Ia (3.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.