Harman US

Wilton, IA Weather & Growing Conditions

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

Tonight
68°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 1am and 4am, then showers and thunderstorms likely. Mostly cloudy, with a low around 68. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast for Wilton

WhenTempForecastWindPrecip
Tonight 68°F Mostly Cloudy then Chance Showers And Thunderstorms 5 to 10 mph E 73%
Saturday 83°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 5 mph S 70%
Saturday Night 64°F Chance Showers And Thunderstorms then Showers And Thunderstorms 5 mph N 80%
Sunday 71°F Showers And Thunderstorms Likely 5 to 10 mph NE 79%
Sunday Night 57°F Showers And Thunderstorms Likely 10 to 15 mph NE 60%
Monday 65°F Rain Showers Likely 10 mph NE 56%
Monday Night 52°F Rain Showers Likely 10 mph NE 56%
Tuesday 63°F Chance Rain Showers 10 mph NE 37%
Tuesday Night 49°F Partly Cloudy 5 mph NE 7%
Wednesday 67°F Mostly Sunny 5 mph NE 1%
Wednesday Night 52°F Partly Cloudy 0 to 5 mph NE 3%
Thursday 70°F Mostly Sunny 0 to 5 mph NE 6%
Thursday Night 54°F Partly Cloudy 0 to 5 mph NE 6%
Friday 71°F Mostly Sunny 0 to 5 mph NE 6%

Forecast source: National Weather Service (api.weather.gov) for Wilton (41.589, -91.025). Updated through the day.

Growing snapshot for Wilton

Last spring frost
Apr 18
First fall frost
Oct 22
Growing season
184 days
Hardiness zone
5b

More local growing data for Wilton: nearby ZIP 52778 weather · frost dates · planting calendar · Iowa frost dates

Nearby towns & communities

All Iowa locations ›

Climate data from the nearest NOAA station, Muscatine 2N, Ia (9.4 mi from Wilton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.