Port Arthur, TX Weather Forecast and Current Conditions (77640)
Feels Like 80°F
Current Weather
Feels Like 80°F
Forecast at a Glance
This Date in Weather History
1845 - A tornado traveled 275 miles across Lake Ontario, New York and Lake Champlain.
More on this and other weather history
Port Arthur 7 Day Weather Forecast Details
Saturday Sep 20
Day: A slight chance of showers and thunderstorms between 1pm and 3pm. Mostly sunny, with a high near 89. East wind 0 to 10 mph. Chance of precipitation is 20%.
Night: A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. Southeast wind 0 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Sunday Sep 21
Day: Showers and thunderstorms likely before 4pm, then showers and thunderstorms likely. Mostly sunny, with a high near 88. Southeast wind 0 to 10 mph. Chance of precipitation is 60%.
Night: Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Mostly clear, with a low around 75. Southeast wind 5 to 10 mph. Chance of precipitation is 60%.
Monday Sep 22
Day: A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 10am, then a chance of showers and thunderstorms. Sunny, with a high near 89. Southeast wind 5 to 10 mph. Chance of precipitation is 40%.
Night: A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 77. Southeast wind 5 to 10 mph. Chance of precipitation is 40%.
Tuesday Sep 23
Day: A chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Sunny, with a high near 90. South wind 5 to 10 mph. Chance of precipitation is 40%.
Night: A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 76. South wind 5 to 10 mph. Chance of precipitation is 40%.
Wednesday Sep 24
Day: A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 50%.
Night: A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 50%.
Thursday Sep 25
Day: A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 72. Chance of precipitation is 20%.
Friday Sep 26
Day: A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Sunny, with a high near 89.
Sun & Moon Monthly
Sunrise 7:04 AM
Sunset 7:16 PM
Last Light 7:40 PM
Moonset 6:49 PM
Close Tide Stations
Port Arthur
(1.5 miles away)
East Sabine Lake
(6.9 miles away)
Rainbow Bridge
(7.5 miles away)
Contiguous United States Extremes
Fri's High Temperature
104 at 4 Miles South Of Tolleson, AZ
Fri's Low Temperature
23 at 4 Miles Northwest Of Grand Lake, CO and 16 Miles West Of Redfeather Lakes, CO
Weather Folklore
When dew is on the grass, rain will never come to pass.
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About Port Arthur, Texas
Port Arthur is a city in the state of Texas, United States of America, located 90 mi (140 km) east of metro Houston. Part of the Beaumont–Port Arthur metropolitan area, the city lies primarily in Jefferson County, with a small extension in Orange County. The largest oil refinery in the US, the Motiva Refinery, is located in Port Arthur.
The population was 53,818 at the 2010 census, down from 57,755 at the 2000 census. In 2020, its population was 56,039. In the 19th century, initial attempts to settle the area had all failed, mostly. However, in 1895, Arthur Stilwell founded Port Arthur, and the town quickly grew, being incorporated as a city in 1898. It soon developed into a seaport and, eventually, became the center of a large oil-refinery network. The Rainbow Bridge across the Neches River connects Port Arthur to Bridge City.
Due to its location on the Gulf of Mexico, Port Arthur is vulnerable to hurricanes and other intense tropical weather, as well as extreme heatwaves, high humidity, and tornadoes. Since its inception, the city has experienced several incidences of extreme weather resulting in significant damages and casualties.
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