As of 02:36 CDT

Port Arthur, TX weather in March

76°

Port Arthur, Sunday, 9 August, 02:36

Partly cloudy. Feels like 78°. High 88°, low 76°.

Pressure30.00 inHg

Wind4.9 mph S

Humidity89%

Visibility6.2 mi

Dew point73°

See detailed hourly forecast

In March, Port Arthur, TX averages a high of 68° and a low of 57.5°. About 3.9 inches of precipitation fall over the month (10 wet days). The record high is 84° (2023) and the record low 29.3° (1980). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	65.7°	54.7°	35%	79.2° (2017)	35.6° (1968)
2	65.1°	54.9°	42%	78.3° (2023)	29.3° (1980)
3	64.9°	53.8°	38%	77.7° (2020)	32.5° (2002)
4	64.8°	53.2°	32%	75.2° (2024)	30.7° (2002)
5	65.3°	54.3°	38%	77.5° (2024)	32.9° (2019)
6	65.5°	54°	32%	80.1° (2023)	29.7° (1989)
7	66°	54.5°	23%	78.3° (2023)	34.9° (1989)
8	65.8°	55.9°	32%	79° (2023)	35.1° (1989)
9	66.6°	55.8°	37%	78.1° (2023)	33.8° (1996)
10	66.7°	55.8°	25%	78.6° (2023)	38.1° (1996)
11	67.1°	57.4°	33%	78.8° (2019)	38.7° (1998)
12	67.3°	57.4°	35%	84° (2023)	36.5° (2022)
13	67.3°	57°	22%	77.4° (2025)	37.9° (1993)
14	67.1°	57°	30%	78.6° (2024)	36.9° (1993)
15	68.4°	58.3°	37%	80.8° (2024)	43° (1999)
16	68.5°	58.3°	40%	75.7° (2021)	41.9° (1962)
17	69.1°	58.6°	32%	76.5° (2015)	44.1° (2005)
18	69.3°	59.4°	27%	81° (2018)	41.9° (1960)
19	69.3°	58.8°	22%	81° (2025)	40.5° (1965)
20	68°	57.7°	30%	77.5° (2017)	32.9° (1965)
21	68.2°	56.5°	28%	77.4° (1994)	37° (1965)
22	68.7°	57.7°	30%	77.9° (2017)	40.8° (1968)
23	69.3°	58.8°	25%	77.9° (2025)	39.7° (1968)
24	69.3°	59.5°	32%	80.4° (2025)	44.2° (2006)
25	70.3°	59.5°	33%	82.4° (2020)	44.6° (2013)
26	69.8°	59.4°	32%	79.3° (2020)	43.9° (2013)
27	70.7°	60.4°	35%	80.8° (2023)	48° (1982)
28	70.9°	61.2°	35%	79.9° (2020)	45.1° (1982)
29	70.7°	61.3°	47%	80.6° (1974)	46.8° (1970)
30	71.1°	60.6°	33%	81.1° (2025)	41.5° (1987)
31	71.2°	60.1°	28%	84° (2025)	40.5° (1987)