Union City, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Union City, a city in Randolph County, Indiana.
Today
81°F
Sunny
Sunny, with a high near 81. East wind around 2 mph.
7-day forecast for Union City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Sunny | 2 mph E | 0% |
| Tonight | 61°F | Mostly Clear | 1 mph NE | 0% |
| Wednesday | 83°F | Sunny | 0 to 3 mph SW | 0% |
| Wednesday Night | 64°F | Mostly Clear | 3 mph SW | 5% |
| Thursday | 83°F | Mostly Sunny then Scattered Showers And Thunderstorms | 3 to 8 mph SW | 52% |
| Thursday Night | 65°F | Scattered Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 mph SW | 65% |
| Friday | 81°F | Chance Showers And Thunderstorms then Scattered Showers And Thunderstorms | 3 to 7 mph SW | 65% |
| Friday Night | 65°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 mph SW | 55% |
| Saturday | 82°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 18% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 mph SW | 18% |
| Sunday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 12 mph SW | 15% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms | 9 mph SW | 15% |
| Monday | 85°F | Slight Chance Showers And Thunderstorms | 12 mph SW | 29% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 9 mph SW | 36% |
Forecast source: National Weather Service (api.weather.gov) for Union City (40.199, -84.821). Updated through the day.
Growing snapshot for Union City
Last spring frost
Apr 20
First fall frost
Oct 21
Growing season
183 days
Hardiness zone
6a
More local growing data for Union City: nearby ZIP 47390 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Blountsville
Farmland
Losantville
Lynn
Modoc
Parker City
Ridgeville
Saratoga
Spartanburg
Winchester
Windsor
Climate data from the nearest NOAA station, Winchester Airport 3 E, In (4.6 mi from Union City). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.