Union Star, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Union Star, a town in Andrew County, Missouri.
Today
88°F
Mostly Sunny
Mostly sunny, with a high near 88. South wind around 6 mph.
7-day forecast for Union Star
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny | 6 mph S | 14% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 5 to 9 mph ENE | 43% |
| Wednesday | 79°F | Showers And Thunderstorms Likely | 10 mph NE | 61% |
| Wednesday Night | 63°F | Showers And Thunderstorms Likely | 5 to 10 mph NE | 59% |
| Thursday | 82°F | Showers And Thunderstorms Likely then Mostly Sunny | 6 mph ENE | 59% |
| Thursday Night | 65°F | Mostly Clear | 5 mph SE | 13% |
| Friday | 86°F | Mostly Sunny | 3 to 8 mph S | 13% |
| Friday Night | 69°F | Mostly Clear | 7 mph SSE | 14% |
| Saturday | 90°F | Sunny | 6 to 13 mph S | 5% |
| Saturday Night | 74°F | Mostly Clear | 12 to 15 mph S | 6% |
| Sunday | 92°F | Sunny | 15 mph SSW | 4% |
| Sunday Night | 75°F | Partly Cloudy | 13 to 16 mph S | 5% |
| Monday | 93°F | Mostly Sunny | 17 mph SSW | 5% |
| Monday Night | 75°F | Partly Cloudy | 15 mph SSW | 11% |
Forecast source: National Weather Service (api.weather.gov) for Union Star (39.979, -94.598). Updated through the day.
Growing snapshot for Union Star
Last spring frost
Apr 17
First fall frost
Oct 19
Growing season
184 days
Hardiness zone
6a
More local growing data for Union Star: nearby ZIP 64494 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cosby 2W, Mo (10.8 mi from Union Star). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.