Union City, OK Weather & Growing Conditions
Today
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 102. South southwest wind around 16 mph, with gusts as high as 24 mph.
7-day forecast
| 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 | 18% |
| Sunday | 96°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 | 8 mph NE | 69% |
| Monday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 8 to 13 mph NNE | 22% |
| Monday Night | 61°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 8 to 13 mph NE | 21% |
| Tuesday | 81°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 8 to 12 mph NE | 21% |
| Tuesday Night | 57°F | Partly Cloudy | 7 to 12 mph NE | 5% |
| Wednesday | 84°F | Mostly Sunny | 8 mph ENE | 12% |
| Wednesday Night | 60°F | Partly Cloudy | 5 to 8 mph E | 8% |
| Thursday | 86°F | Slight Chance Rain Showers | 5 to 8 mph SE | 24% |
| Thursday Night | 63°F | Mostly Cloudy | 5 to 8 mph ESE | 13% |
| Friday | 88°F | Slight Chance Rain Showers | 5 to 8 mph SE | 16% |
| Friday Night | 64°F | Slight Chance Rain Showers | 8 mph ESE | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Union City, OK
Last spring frost
Apr 3
First fall frost
Nov 5
Growing season
216 days
Hardiness zone
7b
Explore more for Union City, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Minco 2Ssw Mesonet, Ok (8.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.