Otho, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Otho, a city in Webster County, Iowa.
Tonight
66°F
Patchy Fog
Patchy fog and a chance of showers and thunderstorms. Mostly cloudy. Low around 66, with temperatures rising to around 68 overnight. South southeast wind 6 to 9 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Otho
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Patchy Fog | 6 to 9 mph SSE | 54% |
| Saturday | 76°F | Chance Showers And Thunderstorms then Patchy Fog | 8 mph WNW | 42% |
| Saturday Night | 59°F | Slight Chance Rain Showers | 10 mph N | 22% |
| Sunday | 67°F | Chance Rain Showers | 13 mph NE | 34% |
| Sunday Night | 54°F | Chance Rain Showers | 10 mph ENE | 34% |
| Monday | 60°F | Rain Showers Likely | 10 mph ENE | 62% |
| Monday Night | 50°F | Rain Showers Likely | 5 to 8 mph NE | 62% |
| Tuesday | 61°F | Mostly Cloudy | 7 mph ENE | 13% |
| Tuesday Night | 46°F | Partly Cloudy | 1 to 5 mph E | 2% |
| Wednesday | 65°F | Mostly Sunny | 3 mph ESE | 3% |
| Wednesday Night | 50°F | Partly Cloudy | 2 mph SE | 10% |
| Thursday | 67°F | Slight Chance Rain Showers | 3 mph SSE | 20% |
| Thursday Night | 53°F | Mostly Cloudy | 1 mph SE | 10% |
| Friday | 68°F | Partly Sunny | 1 to 5 mph ESE | 10% |
Forecast source: National Weather Service (api.weather.gov) for Otho (42.422, -94.149). Updated through the day.
Growing snapshot for Otho
Last spring frost
Apr 28
First fall frost
Oct 8
Growing season
162 days
Hardiness zone
5a
More local growing data for Otho: nearby ZIP 50569 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Badger
Barnum
Callender
Clare
Coalville
Dayton
Duncombe
Fort Dodge
Gowrie
Harcourt
Lehigh
Moorland
Vincent
Climate data from the nearest NOAA station, Ft Dodge 5Nnw, Ia (12.9 mi from Otho). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.