Port Arthur Weather Forecast
- 71
- 89
Increasing Clouds
- 73
- 85
Partly Sunny
- 75
- 84
Mostly Cloudy
- 78
- 86
Mostly Cloudy
- 78
- 86
Chance Thunderstorms
- 76
- 86
Chance Thunderstorms
Today 14 May Lower Jefferson
Sunny. Highs in the upper 80s. West Winds around 5 Mph, becoming south this afternoon.
Tonight 14 May Lower Jefferson
Partly cloudy. Lows in the lower 70s. South Winds 5 to 10 Mph.
Port Arthur Temperature Statistics
May Temperature
Beaumont/Port Arthur Southeast Texas Regional Airport (6.8 miles)
Lowest 3 May, 2026
51.7 °FAverage May
71.9 °FHighest 10 May, 2026
87.7 °F
Climate (2021–Present)
Beaumont/Port Arthur Southeast Texas Regional Airport (6.8 miles)
Average Low 2021–2026
62.4 °FAverage 2021–2026
71 °FAverage High 2021–2026
81.1 °F