Port Arthur, TX Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Port Arthur, TX in one place.
Showers and thunderstorms. Mostly cloudy, with a high near 85. West wind 0 to 5 mph. Chance of precipitation is 90%.
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: Jul 12, 2026 4:01 AM CDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Port Arthur, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 4:01 AM CDT
- Forecast office
- LCH
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Arthur
Saturday looks like the warmest upcoming period in Port Arthur at 93 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 75 degrees F.
The strongest winds are forecast for Thursday at about 0 to 10 mph SE.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 4:01 AM CDT
- Coverage
- 5 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
Showers and thunderstorms likely. Mostly cloudy, with a low around 75. West wind 0 to 5 mph. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 89. South wind 0 to 5 mph. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 77. South wind 0 to 5 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 78. Chance of precipitation is 20%.
Mostly sunny, with a high near 92.
Partly cloudy, with a low around 78.
Mostly sunny, with a high near 93.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Showers And Thunderstorms
|
85°F |
0 to 5 mph
W
|
|
Tuesday Night
Jul 14
|
Showers And Thunderstorms Likely
|
75°F |
0 to 5 mph
W
|
|
Wednesday
Jul 15
|
Chance Showers And Thunderstorms
|
89°F |
0 to 5 mph
S
|
|
Wednesday Night
Jul 15
|
Slight Chance Showers And Thunderstorms then Mostly Cloudy
|
77°F |
0 to 5 mph
S
|
|
Thursday
Jul 16
|
Slight Chance Showers And Thunderstorms
|
91°F |
0 to 10 mph
SE
|
|
Thursday Night
Jul 16
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
78°F |
0 to 10 mph
S
|
|
Friday
Jul 17
|
Mostly Sunny
|
92°F |
0 to 10 mph
S
|
|
Friday Night
Jul 17
|
Partly Cloudy
|
78°F |
0 to 10 mph
SW
|
|
Saturday
Jul 18
|
Mostly Sunny
|
93°F |
0 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Arthur.
