Sergeant Bluff, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sergeant Bluff, a city in Woodbury County, Iowa.
Today
71°F
Chance Rain Showers then Cloudy
A chance of rain showers before 9am. Cloudy. High near 71, with temperatures falling to around 68 in the afternoon. North northwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Sergeant Bluff
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Chance Rain Showers then Cloudy | 5 to 10 mph NNW | 29% |
| Tonight | 58°F | Cloudy | 10 mph N | 14% |
| Sunday | 64°F | Cloudy then Chance Rain Showers | 10 mph NE | 29% |
| Sunday Night | 54°F | Rain Showers Likely | 5 to 10 mph NE | 66% |
| Monday | 60°F | Rain Showers Likely | 5 to 10 mph ENE | 66% |
| Monday Night | 49°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph ENE | 36% |
| Tuesday | 62°F | Partly Sunny | 5 mph E | 7% |
| Tuesday Night | 46°F | Partly Cloudy | 5 mph ESE | 1% |
| Wednesday | 66°F | Mostly Sunny | 5 to 10 mph SE | 6% |
| Wednesday Night | 51°F | Partly Cloudy then Chance Rain Showers | 5 mph SE | 32% |
| Thursday | 67°F | Chance Rain Showers | 5 to 10 mph SE | 33% |
| Thursday Night | 54°F | Slight Chance Rain Showers | 5 mph SE | 17% |
| Friday | 69°F | Slight Chance Rain Showers | 5 to 10 mph SE | 17% |
| Friday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SE | 24% |
Forecast source: National Weather Service (api.weather.gov) for Sergeant Bluff (42.398, -96.351). Updated through the day.
Growing snapshot for Sergeant Bluff
Last spring frost
Apr 29
First fall frost
Oct 5
Growing season
159 days
Hardiness zone
5a
More local growing data for Sergeant Bluff: nearby ZIP 51054 weather · frost dates · planting calendar · Iowa frost dates
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Climate data from the nearest NOAA station, Sioux City Gateway Ap, Ia (2.4 mi from Sergeant Bluff). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.