Sanborn, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sanborn, a city in O'brien County, Iowa.
Today
68°F
Patchy Fog
Patchy fog and a slight chance of rain showers before 1pm. Cloudy, with a high near 68. North wind around 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Sanborn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Patchy Fog | 10 mph N | 23% |
| Tonight | 55°F | Patchy Fog | 10 to 15 mph NNE | 10% |
| Sunday | 66°F | Cloudy | 15 mph NE | 14% |
| Sunday Night | 52°F | Chance Rain Showers | 10 to 15 mph ENE | 49% |
| Monday | 60°F | Rain Showers Likely | 10 to 15 mph ENE | 56% |
| Monday Night | 46°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph ENE | 34% |
| Tuesday | 62°F | Mostly Sunny | 5 to 10 mph E | 5% |
| Tuesday Night | 43°F | Partly Cloudy | 5 mph ESE | 1% |
| Wednesday | 65°F | Mostly Sunny | 5 to 10 mph SE | 3% |
| Wednesday Night | 49°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SE | 19% |
| Thursday | 67°F | Slight Chance Rain Showers | 5 to 10 mph SSE | 20% |
| Thursday Night | 52°F | Mostly Cloudy | 5 mph SE | 12% |
| Friday | 70°F | Partly Sunny | 5 to 10 mph SE | 13% |
| Friday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 10 mph SE | 21% |
Forecast source: National Weather Service (api.weather.gov) for Sanborn (43.181, -95.655). Updated through the day.
Growing snapshot for Sanborn
Last spring frost
May 1
First fall frost
Oct 7
Growing season
160 days
Hardiness zone
5a
More local growing data for Sanborn: nearby ZIP 51248 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sanborn, Ia (1.7 mi from Sanborn). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.