Port Neches, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Neches, a city in Jefferson County, Texas.
Today
94°F
Sunny
Sunny, with a high near 94. Heat index values as high as 102. Southwest wind 0 to 10 mph. Chance of precipitation is 20%.
7-day forecast for Port Neches
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Sunny | 0 to 10 mph SW | 16% |
| Tonight | 78°F | Mostly Clear | 0 to 10 mph SW | 11% |
| Wednesday | 94°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph SW | 24% |
| Wednesday Night | 77°F | Mostly Clear | 0 to 10 mph S | 7% |
| Thursday | 93°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 35% |
| Thursday Night | 77°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph S | 35% |
| Friday | 92°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SE | 38% |
| Friday Night | 77°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 38% |
| Saturday | 91°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 30% |
| Saturday Night | 77°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 30% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 0 to 10 mph SE | 49% |
| Sunday Night | 78°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 49% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 to 10 mph S | 54% |
| Monday Night | 77°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 10 mph S | 54% |
Forecast source: National Weather Service (api.weather.gov) for Port Neches (29.961, -93.962). Updated through the day.
Growing snapshot for Port Neches
Last spring frost
Feb 14
First fall frost
Dec 7
Growing season
301 days
Hardiness zone
9b
More local growing data for Port Neches: nearby ZIP 77651 weather · frost dates · planting calendar · Texas frost dates
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Port Arthur
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Taylor Landing
Climate data from the nearest NOAA station, Port Arthur Se Tx Ap, Tx (4.8 mi from Port Neches). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.