Harman US

Yorktown, IA Weather & Growing Conditions

Overnight
71°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. Low around 71, with temperatures rising to around 74 overnight. South southwest wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 71°F Chance Showers And Thunderstorms 8 mph SSW 45%
Saturday 85°F Chance Showers And Thunderstorms 5 to 8 mph SW 44%
Saturday Night 63°F Chance Showers And Thunderstorms 8 mph N 74%
Sunday 68°F Slight Chance Showers And Thunderstorms 10 mph NNE 45%
Sunday Night 58°F Chance Showers And Thunderstorms 9 mph NE 50%
Monday 62°F Chance Rain Showers 9 mph NE 44%
Monday Night 53°F Chance Rain Showers then Mostly Cloudy 5 to 8 mph NE 40%
Tuesday 61°F Partly Sunny 8 mph NE 3%
Tuesday Night 47°F Partly Cloudy 5 mph E 2%
Wednesday 65°F Mostly Sunny 5 mph E 2%
Wednesday Night 52°F Partly Cloudy 2 mph ESE 13%
Thursday 66°F Chance Rain Showers 5 mph SE 28%
Thursday Night 57°F Chance Rain Showers 3 mph ESE 25%
Friday 67°F Chance Rain Showers 6 mph ESE 25%

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

Growing snapshot for Yorktown, IA

Last spring frost
Apr 25
First fall frost
Oct 11
Growing season
168 days
Hardiness zone
5b

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

Climate data from the nearest NOAA station, Clarinda, Ia (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.