As of 00:58 CDT

Port Arthur, TX weather in August

77°

Port Arthur, Sunday, 9 August, 00:58

Overcast. Feels like 79°. High 93°, low 77°.

Pressure30.03 inHg

Wind5.7 mph S

Humidity90%

Visibility6.2 mi

Dew point74°

See detailed hourly forecast

In August, Port Arthur, TX averages a high of 87.4° and a low of 78.5°. About 5.1 inches of precipitation fall over the month (16 wet days). The record high is 104.9° (2023) and the record low 67.3° (1989). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	87.6°	78.6°	52%	98.2° (2023)	72.3° (1971)
2	87.6°	78.8°	40%	95.9° (1998)	73° (2014)
3	87.6°	78.6°	47%	93.6° (2008)	73° (1976)
4	87.4°	78.4°	45%	95.2° (1999)	71.6° (1976)
5	87.8°	78.4°	40%	96.4° (1964)	74.1° (1975)
6	87.8°	79°	50%	94.3° (2023)	74.5° (1966)
7	87.6°	79°	55%	94.3° (2023)	73° (2004)
8	87.6°	79°	53%	96.8° (1962)	73.8° (1990)
9	87.6°	79.2°	50%	97.3° (1962)	67.3° (1989)
10	87.8°	79.2°	47%	98.2° (1962)	68.7° (1989)
11	88°	79.2°	52%	96.3° (1962)	70.9° (1989)
12	87.4°	78.8°	58%	99.3° (2007)	69.4° (1967)
13	87.3°	78.4°	52%	98.4° (2007)	67.6° (1967)
14	87.4°	78.6°	52%	97.5° (2023)	68.9° (2004)
15	87.3°	78.8°	40%	101.1° (2023)	68.9° (2004)
16	87.6°	78.6°	45%	95.2° (2020)	70.2° (2004)
17	88°	78.8°	40%	97.2° (2023)	68.5° (1992)
18	88°	79.2°	52%	98.8° (2023)	71.6° (2004)
19	87.8°	79.2°	57%	98.4° (2023)	71.4° (1992)
20	88°	79°	50%	101.5° (2023)	72.7° (1992)
21	87.8°	78.6°	43%	96.1° (2023)	72.9° (1992)
22	87.1°	78.6°	57%	96.6° (1980)	73.6° (2025)
23	86.9°	78.4°	65%	97.5° (2023)	72° (2022)
24	87.4°	78.4°	52%	101.3° (2023)	71.2° (1961)
25	87.1°	78.1°	62%	95.2° (2023)	70.3° (1966)
26	87.3°	77.9°	47%	97.9° (2023)	69.6° (1966)
27	87.1°	78.1°	57%	104.9° (2023)	73° (1966)
28	86.5°	77.5°	67%	97.3° (2011)	72.1° (1968)
29	86.4°	77.2°	50%	98.6° (2011)	71.2° (1986)
30	86.4°	77.2°	50%	98.4° (2000)	69.1° (2017)
31	86.5°	77.5°	63%	101.5° (2000)	71.8° (2017)