Sergeant Bluff, IA Weather & Growing Conditions
This Afternoon
48°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a high near 48. West northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 48°F | Chance Rain Showers | 15 mph WNW | 43% |
| Tonight | 37°F | Rain Showers Likely then Cloudy | 10 to 15 mph NW | 70% |
| Thursday | 49°F | Mostly Cloudy | 10 to 15 mph NNW | 6% |
| Thursday Night | 31°F | Mostly Cloudy | 5 to 10 mph N | 0% |
| Friday | 47°F | Partly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 28°F | Partly Cloudy | 0 to 5 mph SSE | 0% |
| Saturday | 57°F | Mostly Sunny | 5 mph S | 0% |
| Saturday Night | 33°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Sunday | 61°F | Sunny | 0 to 5 mph SW | 0% |
| Sunday Night | 37°F | Clear | 5 mph S | 0% |
| Monday | 65°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 37°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Tuesday | 61°F | Mostly Sunny | 0 to 5 mph N | 1% |
| Tuesday Night | 38°F | Partly Cloudy | 0 to 5 mph ENE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sergeant Bluff, IA
Last spring frost
Apr 29
First fall frost
Oct 5
Growing season
159 days
Hardiness zone
5a
Explore more for Sergeant Bluff, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Sioux City Gateway Ap, Ia (2.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.