Harman US

Ainsworth, IA Weather & Growing Conditions

This Afternoon
69°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. High near 69, with temperatures falling to around 66 in the afternoon. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 69°F Showers And Thunderstorms 15 mph S 84%
Tonight 50°F Chance Rain Showers then Mostly Cloudy 10 to 15 mph S 43%
Wednesday 54°F Slight Chance Rain Showers 15 mph SW 23%
Wednesday Night 45°F Mostly Cloudy 10 to 15 mph SW 10%
Thursday 53°F Chance Rain Showers 10 to 15 mph W 32%
Thursday Night 42°F Chance Rain Showers then Mostly Cloudy 10 mph NW 35%
Friday 52°F Partly Sunny 5 to 10 mph N 11%
Friday Night 35°F Partly Cloudy 0 to 5 mph NW 0%
Saturday 53°F Partly Sunny 0 to 5 mph W 2%
Saturday Night 36°F Mostly Clear 0 to 5 mph W 3%
Sunday 59°F Sunny 5 to 10 mph W 8%
Sunday Night 37°F Mostly Clear 5 mph W 3%
Monday 64°F Sunny 5 to 10 mph SW 1%
Monday Night 41°F Mostly Clear 5 mph W 0%

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

Growing snapshot for Ainsworth, IA

Last spring frost
Apr 28
First fall frost
Oct 11
Growing season
165 days
Hardiness zone
5b

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

Climate data from the nearest NOAA station, Washington, Ia (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.