Owasa, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Owasa, a city in Hardin County, Iowa.
This Afternoon
76°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 76, with temperatures falling to around 71 in the afternoon. North northwest wind around 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Owasa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Chance Showers And Thunderstorms | 9 mph NNW | 47% |
| Tonight | 59°F | Chance Showers And Thunderstorms | 10 mph N | 30% |
| Sunday | 66°F | Slight Chance Rain Showers then Chance Drizzle | 14 mph NE | 42% |
| Sunday Night | 53°F | Chance Drizzle then Chance Rain Showers | 13 mph ENE | 50% |
| Monday | 59°F | Rain Showers | 13 mph NE | 78% |
| Monday Night | 49°F | Rain Showers | 6 to 10 mph NE | 78% |
| Tuesday | 60°F | Slight Chance Rain Showers then Partly Sunny | 8 mph NE | 20% |
| Tuesday Night | 46°F | Partly Cloudy | 2 to 6 mph ENE | 4% |
| Wednesday | 64°F | Mostly Sunny | 5 mph E | 0% |
| Wednesday Night | 50°F | Partly Cloudy | 3 mph ESE | 6% |
| Thursday | 66°F | Slight Chance Rain Showers | 3 mph SE | 21% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 2 mph ESE | 21% |
| Friday | 70°F | Slight Chance Rain Showers then Mostly Cloudy | 1 to 5 mph ESE | 16% |
| Friday Night | 56°F | Mostly Cloudy | 2 mph ESE | 8% |
Forecast source: National Weather Service (api.weather.gov) for Owasa (42.432, -93.205). Updated through the day.
Growing snapshot for Owasa
Last spring frost
Apr 28
First fall frost
Oct 10
Growing season
164 days
Hardiness zone
5a
More local growing data for Owasa: nearby ZIP 50126 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Alden
Buckeye
Eldora
Garden City
Hubbard
Iowa Falls
New Providence
Radcliffe
Steamboat Rock
Union
Whitten
Climate data from the nearest NOAA station, Iowa Falls, Ia (0.6 mi from Owasa). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.