Williamsville, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williamsville, a city in Wayne County, Missouri.
This Afternoon
72°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2pm, then showers and thunderstorms. Mostly cloudy. High near 72, with temperatures falling to around 66 in the afternoon. South wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%.
7-day forecast for Williamsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Chance Showers And Thunderstorms | 14 mph S | 98% |
| Tonight | 48°F | Showers And Thunderstorms then Mostly Cloudy | 3 to 10 mph SSW | 89% |
| Wednesday | 67°F | Mostly Sunny | 3 to 7 mph W | 1% |
| Wednesday Night | 35°F | Mostly Clear | 0 to 3 mph WSW | 0% |
| Thursday | 69°F | Sunny | 0 to 5 mph SW | 0% |
| Thursday Night | 39°F | Mostly Cloudy | 2 mph WNW | 7% |
| Friday | 62°F | Partly Sunny | 2 to 7 mph NNW | 0% |
| Friday Night | 34°F | Partly Cloudy | 3 mph N | 0% |
| Saturday | 58°F | Partly Sunny | 2 mph N | 0% |
| Saturday Night | 30°F | Partly Cloudy | 1 mph NNW | 2% |
| Sunday | 63°F | Sunny | 3 mph WNW | 5% |
| Sunday Night | 29°F | Mostly Clear | 2 mph NW | 2% |
| Monday | 66°F | Sunny | 0 to 5 mph W | 1% |
| Monday Night | 32°F | Mostly Clear | 0 to 3 mph WSW | 0% |
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 Nov 3, 2026.