Otranto, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Otranto, a community in Mitchell County, Iowa.
This Afternoon
63°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy. High near 63, with temperatures falling to around 60 in the afternoon. North wind around 9 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Otranto
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Showers And Thunderstorms Likely | 9 mph N | 65% |
| Tonight | 46°F | Showers And Thunderstorms | 8 mph E | 91% |
| Wednesday | 51°F | Rain Showers | 9 to 14 mph SW | 93% |
| Wednesday Night | 42°F | Rain Showers | 13 mph W | 94% |
| Thursday | 49°F | Rain Showers Likely | 14 mph NW | 67% |
| Thursday Night | 34°F | Mostly Cloudy | 7 to 12 mph N | 11% |
| Friday | 47°F | Partly Sunny | 3 to 8 mph N | 0% |
| Friday Night | 29°F | Partly Cloudy | 2 mph E | 0% |
| Saturday | 52°F | Mostly Sunny | 1 to 7 mph SW | 1% |
| Saturday Night | 34°F | Partly Cloudy | 6 mph W | 5% |
| Sunday | 57°F | Sunny | 5 to 8 mph W | 8% |
| Sunday Night | 35°F | Mostly Clear | 6 mph SW | 1% |
| Monday | 60°F | Mostly Sunny | 6 to 12 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 7 mph W | 1% |
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 Nov 3, 2026.