| NWS Forecast for: Port Arthur TX Issued by: National Weather Service Lake Charles, LA Last Update: 2:46 pm CDT Jul 15, 2025 | |
| Tonight: Mostly clear, with a low around 78. South wind 5 to 10 mph becoming light southwest in the evening. Wednesday: Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming south around 5 mph in the afternoon. Wednesday Night: Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening. Thursday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. Heat index values as high as 99. Calm wind becoming southwest around 5 mph in the afternoon. Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 78. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. Friday: Showers and possibly a thunderstorm before 1pm, then showers likely between 1pm and 4pm, then showers and thunderstorms likely after 4pm. High near 89. West wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 80%. Friday Night: Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 78. South wind around 5 mph. Chance of precipitation is 60%. Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Southwest wind 5 to 10 mph. Saturday Night: Mostly cloudy, with a low around 79. South wind 5 to 10 mph. Sunday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Sunday Night: Partly cloudy, with a low around 79. Monday: Mostly sunny, with a high near 92. Monday Night: Mostly clear, with a low around 79. Tuesday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93. | |
| Port Arthur TX 29.9°N 93.92°W | |
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