Harman US

Washta, IA Weather & Growing Conditions

Today
72°F
Patchy Fog then Cloudy
Patchy fog and a chance of showers and thunderstorms before 8am, then patchy fog and a slight chance of rain showers between 8am and 10am. Cloudy. High near 72, with temperatures falling to around 69 in the afternoon. North northwest wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Today 72°F Patchy Fog then Cloudy 5 to 10 mph NNW 51%
Tonight 57°F Slight Chance Rain Showers then Cloudy 5 to 10 mph NNE 19%
Sunday 65°F Cloudy then Chance Rain Showers 10 to 15 mph NE 25%
Sunday Night 53°F Rain Showers Likely 5 to 10 mph ENE 60%
Monday 60°F Rain Showers Likely 5 to 10 mph ENE 60%
Monday Night 48°F Chance Rain Showers then Mostly Cloudy 0 to 5 mph ENE 43%
Tuesday 62°F Mostly Sunny 0 to 5 mph E 8%
Tuesday Night 44°F Partly Cloudy 0 to 5 mph ESE 2%
Wednesday 66°F Mostly Sunny 0 to 5 mph SE 3%
Wednesday Night 50°F Partly Cloudy then Chance Rain Showers 0 to 5 mph SE 29%
Thursday 67°F Chance Rain Showers 0 to 5 mph SE 29%
Thursday Night 53°F Mostly Cloudy then Slight Chance Rain Showers 0 to 5 mph SE 15%
Friday 70°F Slight Chance Rain Showers 0 to 5 mph SE 15%
Friday Night 55°F Mostly Cloudy then Slight Chance Rain Showers 5 mph SE 20%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Washta, IA

Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
162 days
Hardiness zone
5a

Explore more for Washta, IA: full frost dates · planting calendar · Iowa frost dates

Climate data from the nearest NOAA station, Holstein, Ia (10.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.