Oto, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oto, a city in Woodbury County, Iowa.
Tonight
67°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. West northwest wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Oto
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Chance Showers And Thunderstorms | 0 to 5 mph WNW | 40% |
| Saturday | 73°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 10 mph NNW | 31% |
| Saturday Night | 58°F | Mostly Cloudy | 5 to 10 mph NNE | 12% |
| Sunday | 65°F | Cloudy then Slight Chance Rain Showers | 5 to 10 mph NE | 24% |
| Sunday Night | 54°F | Chance Rain Showers | 5 to 10 mph ENE | 53% |
| Monday | 59°F | Showers And Thunderstorms Likely | 5 to 10 mph ENE | 67% |
| Monday Night | 50°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 mph ENE | 42% |
| Tuesday | 61°F | Mostly Cloudy | 5 mph E | 6% |
| Tuesday Night | 47°F | Partly Cloudy | 0 to 5 mph ESE | 0% |
| Wednesday | 65°F | Mostly Sunny | 0 to 5 mph SE | 5% |
| Wednesday Night | 52°F | Mostly Cloudy then Chance Rain Showers | 0 to 5 mph SE | 25% |
| Thursday | 66°F | Chance Rain Showers | 0 to 5 mph SSE | 31% |
| Thursday Night | 54°F | Slight Chance Rain Showers | 0 mph | 18% |
| Friday | 68°F | Slight Chance Rain Showers then Partly Sunny | 0 to 5 mph SE | 18% |
Forecast source: National Weather Service (api.weather.gov) for Oto (42.282, -95.895). Updated through the day.
Growing snapshot for Oto
Last spring frost
May 3
First fall frost
Oct 1
Growing season
151 days
Hardiness zone
5a
More local growing data for Oto: nearby ZIP 51044 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
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Sergeant Bluff
Sioux City
Sloan
Smithland
Climate data from the nearest NOAA station, Mapleton No.2, Ia (12.1 mi from Oto). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.