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
72°F
Slight Chance Showers And Thunderstorms then Patchy Smoke
A slight chance of showers and thunderstorms before 7am, then patchy smoke and a chance of showers and thunderstorms between 7am and noon, then patchy smoke and showers and thunderstorms likely between noon and 3pm, then patchy smoke and a chance of showers and thunderstorms between 3pm and 4pm, then showers and thunderstorms likely between 4pm and 5pm, then patchy smoke and showers and thunderstorms likely. Mostly cloudy, with a high near 72. North wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Sergeant Bluff
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Slight Chance Showers And Thunderstorms then Patchy Smoke | 5 to 15 mph N | 73% |
| Tonight | 57°F | Patchy Smoke | 0 to 5 mph NNE | 53% |
| Wednesday | 75°F | Partly Sunny | 0 to 5 mph ENE | 7% |
| Wednesday Night | 54°F | Mostly Clear | 0 to 5 mph SE | 1% |
| Thursday | 81°F | Mostly Sunny | 0 to 10 mph SSE | 0% |
| Thursday Night | 62°F | Mostly Clear | 5 to 10 mph S | 1% |
| Friday | 86°F | Sunny | 5 to 10 mph S | 3% |
| Friday Night | 66°F | Mostly Clear | 5 to 10 mph SSE | 10% |
| Saturday | 91°F | Sunny | 5 to 15 mph S | 4% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph SSE | 15% |
| Sunday | 90°F | Mostly Sunny | 5 to 10 mph SE | 14% |
| Sunday Night | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 15 mph SE | 17% |
| Monday | 90°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph ESE | 17% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 19% |
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 Aug 4, 2026.