Union, MS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Union, a town in Neshoba County, Mississippi.
Tonight
72°F
Mostly Clear
Mostly clear, with a low around 72. Southwest wind around 0 mph.
7-day forecast for Union
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Mostly Clear | 0 mph | 1% |
| Saturday | 99°F | Sunny | 0 to 5 mph NW | 3% |
| Saturday Night | 73°F | Mostly Clear | 0 mph | 6% |
| Sunday | 98°F | Sunny | 0 to 5 mph NNW | 6% |
| Sunday Night | 71°F | Mostly Clear | 0 mph | 6% |
| Monday | 97°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 20% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SSE | 20% |
| Tuesday | 96°F | Mostly Sunny | 0 to 5 mph NNE | 12% |
| Tuesday Night | 70°F | Partly Cloudy | 0 to 5 mph NNE | 12% |
| Wednesday | 93°F | Sunny | 5 to 10 mph NNE | 7% |
| Wednesday Night | 67°F | Mostly Clear | 5 to 10 mph NNE | 7% |
| Thursday | 89°F | Sunny | 5 to 10 mph NNE | 4% |
| Thursday Night | 65°F | Mostly Clear | 5 to 10 mph NNE | 4% |
| Friday | 88°F | Sunny | 5 to 10 mph NNE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Union (32.571, -89.115). Updated through the day.
Growing snapshot for Union
Last spring frost
Mar 20
First fall frost
Nov 9
Growing season
235 days
Hardiness zone
8b
More local growing data for Union: nearby ZIP 39365 weather · frost dates · planting calendar · Mississippi frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Philadelphia 1 Wsw, Ms (11.1 mi from Union). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.