Williamsville, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williamsville, a city in Wayne County, Missouri.
Today
88°F
Sunny
Sunny. High near 88, with temperatures falling to around 86 in the afternoon. East northeast wind around 1 mph.
7-day forecast for Williamsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Sunny | 1 mph ENE | 0% |
| Tonight | 66°F | Mostly Clear | 1 mph ENE | 0% |
| Wednesday | 89°F | Sunny | 0 to 3 mph SSE | 0% |
| Wednesday Night | 69°F | Partly Cloudy | 0 to 3 mph SSE | 10% |
| Thursday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 31% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 0 to 3 mph S | 50% |
| Friday | 88°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph SSW | 62% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 1 mph SW | 41% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 2 mph SSW | 31% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 mph WSW | 19% |
| Sunday | 89°F | Sunny | 0 to 5 mph SSW | 4% |
| Sunday Night | 71°F | Mostly Clear | 3 mph S | 2% |
| Monday | 91°F | Sunny | 1 to 6 mph SSW | 5% |
| Monday Night | 72°F | Mostly Clear | 5 mph SSW | 4% |
Forecast source: National Weather Service (api.weather.gov) for Williamsville (36.974, -90.548). Updated through the day.
Growing snapshot for Williamsville
Last spring frost
Apr 2
First fall frost
Nov 2
Growing season
215 days
Hardiness zone
7a
More local growing data for Williamsville: nearby ZIP 63967 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Wappapello Dam, Mo (11.2 mi from Williamsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.