Port O'Connor, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port O'Connor, a community in Calhoun County, Texas.
Today
90°F
Sunny
Sunny, with a high near 90. Heat index values as high as 106. South southeast wind 8 to 13 mph.
7-day forecast for Port O'Connor
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Sunny | 8 to 13 mph SSE | 3% |
| Tonight | 82°F | Mostly Clear | 9 to 13 mph SSE | 1% |
| Wednesday | 90°F | Sunny | 12 mph SSE | 2% |
| Wednesday Night | 82°F | Mostly Clear | 8 to 12 mph SSE | 0% |
| Thursday | 90°F | Sunny | 7 to 12 mph SSE | 5% |
| Thursday Night | 82°F | Mostly Clear | 6 to 12 mph SSE | 5% |
| Friday | 90°F | Slight Chance Showers And Thunderstorms | 5 to 12 mph SSE | 15% |
| Friday Night | 82°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 12 mph SE | 15% |
| Saturday | 88°F | Slight Chance Showers And Thunderstorms | 3 to 12 mph SE | 22% |
| Saturday Night | 82°F | Mostly Clear | 6 to 12 mph SE | 9% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms | 5 to 12 mph SSE | 23% |
| Sunday Night | 82°F | Partly Cloudy | 12 mph SSE | 10% |
| Monday | 89°F | Slight Chance Showers And Thunderstorms | 8 to 13 mph S | 16% |
| Monday Night | 83°F | Mostly Clear | 14 mph SSE | 11% |
Forecast source: National Weather Service (api.weather.gov) for Port O'Connor (28.446, -96.420). Updated through the day.
Growing snapshot for Port O'Connor
Last spring frost
Feb 4
First fall frost
Dec 27
Growing season
323 days
Hardiness zone
9b
More local growing data for Port O'Connor: nearby ZIP 77982 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Port O'connor, Tx (4 mi from Port O'Connor). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.