Union City, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Union City, a town in Canadian County, Oklahoma.
Tonight
45°F
Mostly Clear
Mostly clear, with a low around 45. Northwest wind 5 to 9 mph.
7-day forecast for Union City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Mostly Clear | 5 to 9 mph NW | 0% |
| Wednesday | 67°F | Sunny | 5 mph W | 0% |
| Wednesday Night | 48°F | Mostly Clear | 6 mph SSE | 0% |
| Thursday | 61°F | Rain Showers | 5 to 15 mph ESE | 75% |
| Thursday Night | 41°F | Mostly Clear | 5 to 9 mph N | 12% |
| Friday | 61°F | Sunny | 8 mph N | 0% |
| Friday Night | 40°F | Partly Cloudy | 1 to 6 mph NNE | 0% |
| Saturday | 62°F | Mostly Sunny | 1 to 5 mph NNW | 1% |
| Saturday Night | 41°F | Mostly Clear | 3 mph W | 3% |
| Sunday | 66°F | Sunny | 5 mph WSW | 2% |
| Sunday Night | 42°F | Clear | 6 mph SSW | 1% |
| Monday | 69°F | Sunny | 6 to 12 mph SSW | 0% |
| Monday Night | 46°F | Mostly Clear | 6 to 9 mph S | 1% |
| Tuesday | 71°F | Sunny | 6 to 12 mph SSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Union City (35.400, -97.907). Updated through the day.
Growing snapshot for Union City
Last spring frost
Apr 3
First fall frost
Nov 5
Growing season
216 days
Hardiness zone
7b
More local growing data for Union City: nearby ZIP 73090 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Minco 2Ssw Mesonet, Ok (8.7 mi from Union City). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.