Owasa, IA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Owasa, a city in Hardin County, Iowa.

Today

78°F

Patchy Fog

Patchy fog and a chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 78, with temperatures falling to around 74 in the afternoon. West southwest wind around 8 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
Today	78°F	Patchy Fog	8 mph WSW	51%
Tonight	59°F	Chance Showers And Thunderstorms	10 mph N	28%
Sunday	65°F	Slight Chance Rain Showers then Chance Drizzle	10 to 14 mph NE	31%
Sunday Night	54°F	Chance Rain Showers	13 mph ENE	32%
Monday	61°F	Chance Rain Showers	13 mph NE	48%
Monday Night	48°F	Chance Rain Showers	6 to 10 mph NE	48%
Tuesday	60°F	Mostly Sunny	8 mph ENE	12%
Tuesday Night	45°F	Partly Cloudy	5 mph ENE	2%
Wednesday	65°F	Sunny	5 mph E	1%
Wednesday Night	50°F	Partly Cloudy	2 mph ESE	5%
Thursday	66°F	Partly Sunny	3 mph ESE	13%
Thursday Night	53°F	Mostly Cloudy	2 mph ESE	9%
Friday	69°F	Partly Sunny	1 to 5 mph ESE	6%
Friday Night	54°F	Mostly Cloudy	3 mph SE	10%

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

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

All Iowa locations ›

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.