Port Arthur, TX Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Port Arthur, TX in one place.
A slight chance of rain showers between 9am and 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and thunderstorms likely between 1pm and 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Port Arthur, TX is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 9, 2026 7:14 PM CDT.
The active forecast window currently covers Apr 10 to Apr 15, 2026 for Port Arthur, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 7:14 PM CDT
- Forecast office
- LCH
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Arthur
Wednesday looks like the warmest upcoming period in Port Arthur at 83 degrees F.
Friday Night is the coolest period ahead with temperatures near 67 degrees F.
The strongest winds are forecast for Friday at about 5 to 15 mph SE.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Apr 9, 2026 7:14 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LCH
- Radar station
- KLCH
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 67. Southeast wind 5 to 10 mph.
Mostly sunny, with a high near 80. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Mostly cloudy, with a low around 69. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Partly sunny, with a high near 80. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly cloudy, with a low around 70. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Partly sunny, with a high near 82. South wind 10 to 15 mph, with gusts as high as 25 mph.
Partly cloudy, with a low around 70.
Mostly sunny, with a high near 82.
Partly cloudy, with a low around 70.
Partly sunny, with a high near 83.
Mostly cloudy, with a low around 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Chance Showers And Thunderstorms
|
78°F |
5 to 15 mph
SE
|
|
Friday Night
Apr 10
|
Partly Cloudy
|
67°F |
5 to 10 mph
SE
|
|
Saturday
Apr 11
|
Mostly Sunny
|
80°F |
5 to 15 mph
SE
|
|
Saturday Night
Apr 11
|
Mostly Cloudy
|
69°F |
10 to 15 mph
SE
|
|
Sunday
Apr 12
|
Partly Sunny
|
80°F |
10 to 15 mph
SE
|
|
Sunday Night
Apr 12
|
Mostly Cloudy
|
70°F |
10 to 15 mph
SE
|
|
Monday
Apr 13
|
Partly Sunny
|
82°F |
10 to 15 mph
S
|
|
Monday Night
Apr 13
|
Partly Cloudy
|
70°F |
10 to 15 mph
SE
|
|
Tuesday
Apr 14
|
Mostly Sunny
|
82°F |
10 to 15 mph
S
|
|
Tuesday Night
Apr 14
|
Partly Cloudy
|
70°F |
10 to 15 mph
SE
|
|
Wednesday
Apr 15
|
Partly Sunny
|
83°F |
10 to 15 mph
S
|
|
Wednesday Night
Apr 15
|
Mostly Cloudy
|
70°F |
5 to 15 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Arthur.
