Union City, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Union City, a town in Canadian County, Oklahoma.
Today
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 101. South southwest wind around 16 mph, with gusts as high as 24 mph.
7-day forecast for Union City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 16 mph SSW | 4% |
| Tonight | 74°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 14 mph S | 17% |
| Sunday | 95°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 12 mph S | 69% |
| Sunday Night | 65°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 7 to 10 mph NE | 69% |
| Monday | 85°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 8 to 13 mph NNE | 23% |
| Monday Night | 61°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 8 to 12 mph NE | 21% |
| Tuesday | 81°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 9 to 13 mph NE | 21% |
| Tuesday Night | 58°F | Partly Cloudy | 7 to 13 mph NE | 5% |
| Wednesday | 83°F | Mostly Sunny | 8 mph ENE | 11% |
| Wednesday Night | 60°F | Partly Cloudy | 5 to 8 mph E | 7% |
| Thursday | 86°F | Slight Chance Rain Showers | 5 to 8 mph SE | 23% |
| Thursday Night | 63°F | Mostly Cloudy | 5 to 8 mph ESE | 13% |
| Friday | 87°F | Slight Chance Rain Showers | 5 to 8 mph SE | 16% |
| Friday Night | 65°F | Slight Chance Rain Showers | 8 mph ESE | 16% |
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 Sep 19, 2026.