Unionville, MO Weather & Growing Conditions
Today
85°F
Partly Sunny
Partly sunny, with a high near 85. South southwest wind 5 to 9 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Partly Sunny | 5 to 9 mph SSW | 12% |
| Tonight | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 6 mph NW | 66% |
| Sunday | 71°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 10 mph N | 61% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 10 mph NE | 66% |
| Monday | 62°F | Showers And Thunderstorms Likely | 12 mph NE | 66% |
| Monday Night | 52°F | Chance Rain Showers | 6 to 10 mph NE | 29% |
| Tuesday | 60°F | Slight Chance Rain Showers then Mostly Cloudy | 9 mph NE | 15% |
| Tuesday Night | 46°F | Partly Cloudy | 5 mph NE | 4% |
| Wednesday | 64°F | Sunny | 5 mph NE | 2% |
| Wednesday Night | 51°F | Partly Cloudy | 2 mph ENE | 3% |
| Thursday | 67°F | Partly Sunny | 2 mph ENE | 10% |
| Thursday Night | 55°F | Mostly Cloudy | 1 mph NE | 12% |
| Friday | 69°F | Partly Sunny | 1 to 5 mph E | 12% |
| Friday Night | 56°F | Mostly Cloudy | 2 mph E | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Unionville, MO
Last spring frost
Apr 17
First fall frost
Oct 22
Growing season
186 days
Hardiness zone
5b
Explore more for Unionville, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Unionville, Mo (3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.