Oto, IA Weather & Growing Conditions
Tonight
39°F
Rain Showers
Rain showers. Cloudy. Low around 39, with temperatures rising to around 43 overnight. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Rain Showers | 15 mph NW | 82% |
| Wednesday | 47°F | Chance Rain Showers | 10 to 15 mph WNW | 45% |
| Wednesday Night | 37°F | Chance Rain Showers | 10 mph NW | 41% |
| Thursday | 48°F | Chance Rain Showers | 10 mph NNW | 35% |
| Thursday Night | 34°F | Mostly Cloudy | 5 mph N | 2% |
| Friday | 49°F | Partly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 31°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 56°F | Mostly Sunny | 0 to 5 mph SW | 2% |
| Saturday Night | 34°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 60°F | Sunny | 5 mph WSW | 3% |
| Sunday Night | 38°F | Mostly Clear | 5 mph S | 0% |
| Monday | 62°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 mph NW | 0% |
| Tuesday | 60°F | Mostly Sunny | 5 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Oto, IA
Last spring frost
May 3
First fall frost
Oct 1
Growing season
151 days
Hardiness zone
5a
Explore more for Oto, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Mapleton No.2, Ia (12.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.