Unionville, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Unionville, a city in Putnam County, Missouri.
Tonight
47°F
Mostly Cloudy
Mostly cloudy, with a low around 47. Southwest wind 8 to 12 mph, with gusts as high as 22 mph.
7-day forecast for Unionville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Mostly Cloudy | 8 to 12 mph SW | 13% |
| Wednesday | 54°F | Mostly Cloudy | 12 to 16 mph W | 11% |
| Wednesday Night | 42°F | Mostly Cloudy | 9 mph WSW | 4% |
| Thursday | 54°F | Mostly Cloudy then Chance Rain Showers | 6 to 10 mph WNW | 25% |
| Thursday Night | 41°F | Mostly Cloudy | 6 mph NNW | 14% |
| Friday | 53°F | Partly Sunny | 2 to 8 mph N | 7% |
| Friday Night | 35°F | Mostly Cloudy | 1 mph N | 0% |
| Saturday | 55°F | Partly Sunny | 0 to 3 mph WNW | 2% |
| Saturday Night | 37°F | Mostly Clear | 2 mph WNW | 5% |
| Sunday | 61°F | Sunny | 2 to 6 mph W | 4% |
| Sunday Night | 38°F | Mostly Clear | 3 mph WSW | 1% |
| Monday | 65°F | Sunny | 3 to 12 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 3 mph W | 0% |
| Tuesday | 65°F | Sunny | 5 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Unionville (40.476, -93.004). Updated through the day.
Growing snapshot for Unionville
Last spring frost
Apr 17
First fall frost
Oct 22
Growing season
186 days
Hardiness zone
5b
More local growing data for Unionville: nearby ZIP 63565 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Unionville, Mo (3 mi from Unionville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.