Sioux Center, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sioux Center, a city in Sioux County, Iowa.
This Afternoon
54°F
Rain Showers
Rain showers. Cloudy. High near 54, with temperatures falling to around 47 in the afternoon. North northwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Sioux Center
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 54°F | Rain Showers | 15 to 20 mph NNW | 92% |
| Tonight | 39°F | Rain Showers | 15 mph NW | 90% |
| Wednesday | 46°F | Rain Showers | 15 mph NW | 77% |
| Wednesday Night | 38°F | Rain Showers Likely | 10 to 15 mph NW | 55% |
| Thursday | 47°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph NNW | 23% |
| Thursday Night | 33°F | Mostly Cloudy | 0 to 10 mph N | 0% |
| Friday | 48°F | Partly Sunny | 0 mph | 0% |
| Friday Night | 31°F | Mostly Cloudy | 0 mph | 1% |
| Saturday | 55°F | Mostly Sunny | 0 to 5 mph SW | 2% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 5% |
| Sunday | 58°F | Sunny | 5 mph WSW | 3% |
| Sunday Night | 38°F | Mostly Clear | 5 mph S | 0% |
| Monday | 61°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Sioux Center (43.075, -96.170). Updated through the day.
Growing snapshot for Sioux Center
Last spring frost
Apr 30
First fall frost
Oct 3
Growing season
154 days
Hardiness zone
5a
More local growing data for Sioux Center: nearby ZIP 51250 weather · frost dates · planting calendar · Iowa frost dates
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Climate data from the nearest NOAA station, Sioux Ctr 2 Se, Ia (3.6 mi from Sioux Center). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.