Otranto, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Otranto, a community in Mitchell County, Iowa.
Overnight
62°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 3am, then a chance of showers and thunderstorms between 3am and 4am, then a chance of showers and thunderstorms. Cloudy, with a low around 62. Southeast wind around 13 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Otranto
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Showers And Thunderstorms Likely | 13 mph SE | 64% |
| Saturday | 69°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 44% |
| Saturday Night | 56°F | Slight Chance Rain Showers | 13 mph N | 19% |
| Sunday | 66°F | Partly Sunny | 15 mph NE | 5% |
| Sunday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 13 mph NE | 18% |
| Monday | 62°F | Slight Chance Rain Showers | 12 mph E | 23% |
| Monday Night | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 9 mph E | 16% |
| Tuesday | 61°F | Mostly Sunny | 5 to 9 mph E | 8% |
| Tuesday Night | 42°F | Mostly Clear | 2 to 6 mph E | 1% |
| Wednesday | 64°F | Sunny | 2 to 6 mph E | 1% |
| Wednesday Night | 47°F | Mostly Clear | 5 mph SE | 5% |
| Thursday | 66°F | Mostly Sunny | 2 to 6 mph SE | 9% |
| Thursday Night | 50°F | Partly Cloudy | 3 mph SE | 3% |
| Friday | 68°F | Mostly Sunny | 2 to 7 mph SE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Otranto (43.461, -92.986). Updated through the day.
Growing snapshot for Otranto
Last spring frost
May 4
First fall frost
Oct 4
Growing season
152 days
Hardiness zone
5a
More local growing data for Otranto: nearby ZIP 50426 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Northwood, Ia (10.6 mi from Otranto). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.