West Chester, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Chester, a city in Washington County, Iowa.
This Afternoon
80°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
7-day forecast for West Chester
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 31% |
| Tonight | 64°F | Showers And Thunderstorms | 5 mph NW | 88% |
| Sunday | 67°F | Showers And Thunderstorms Likely | 10 to 15 mph N | 64% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 15 mph NE | 62% |
| Monday | 61°F | Rain Showers | 15 mph NE | 78% |
| Monday Night | 52°F | Rain Showers Likely | 10 to 15 mph NE | 62% |
| Tuesday | 60°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 10 mph NE | 6% |
| Wednesday | 63°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph NE | 1% |
| Thursday | 66°F | Partly Sunny | 5 mph E | 11% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 0 to 5 mph E | 20% |
| Friday | 70°F | Slight Chance Rain Showers | 0 to 5 mph E | 20% |
| Friday Night | 57°F | Mostly Cloudy | 5 mph E | 11% |
Forecast source: National Weather Service (api.weather.gov) for West Chester (41.340, -91.817). Updated through the day.
Growing snapshot for West Chester
Last spring frost
Apr 28
First fall frost
Oct 11
Growing season
165 days
Hardiness zone
5b
More local growing data for West Chester: nearby ZIP 52359 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Washington, Ia (7.3 mi from West Chester). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.