| NWS Forecast for: Port Arthur TX Issued by: National Weather Service Lake Charles, LA Last Update: 4:45 pm CDT Jul 3, 2025 |  |
| Tonight: Mostly cloudy, with a low around 79. South wind around 5 mph becoming calm in the evening. Independence Day: A slight chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 10am. Partly sunny, with a high near 91. Heat index values as high as 99. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%. Friday Night: Mostly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening. Saturday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Heat index values as high as 101. Calm wind becoming south around 5 mph in the afternoon. Saturday Night: Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening. Sunday: A 30 percent chance of showers and thunderstorms. Sunny, with a high near 94. Calm wind becoming south around 5 mph in the afternoon. Sunday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening. Monday: A 40 percent chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon. Monday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 78. South wind around 5 mph becoming calm in the evening. Tuesday: A 40 percent chance of showers and thunderstorms. Sunny, with a high near 93. Tuesday Night: Mostly clear, with a low around 79. Wednesday: A 30 percent chance of showers and thunderstorms. Sunny, with a high near 94. Wednesday Night: Mostly clear, with a low around 79. Thursday: A 30 percent chance of showers and thunderstorms. Sunny, with a high near 95. | |
| Port Arthur TX 29.9°N 93.92°W | |
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