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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

WhenTempForecastWindPrecip
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

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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.