West Chester, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Chester, a city in Washington County, Iowa.
Overnight
63°F
Mostly Clear
Mostly clear, with a low around 63. South wind around 5 mph.
7-day forecast for West Chester
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Mostly Clear | 5 mph S | 0% |
| Tuesday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph W | 25% |
| Tuesday Night | 66°F | Showers And Thunderstorms Likely | 5 to 10 mph N | 79% |
| Wednesday | 77°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph NE | 78% |
| Wednesday Night | 60°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph N | 58% |
| Thursday | 81°F | Chance Rain Showers then Mostly Sunny | 5 mph NE | 36% |
| Thursday Night | 61°F | Mostly Clear | 0 to 5 mph E | 3% |
| Friday | 83°F | Sunny | 0 to 5 mph SE | 5% |
| Friday Night | 65°F | Mostly Clear | 5 mph SE | 13% |
| Saturday | 87°F | Sunny | 5 to 10 mph S | 12% |
| Saturday Night | 70°F | Mostly Clear | 10 mph S | 10% |
| Sunday | 89°F | Mostly Sunny | 10 to 15 mph S | 10% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 10 mph S | 31% |
| Monday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 31% |
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 Aug 4, 2026.