Monthly outlook for Port Neches, TX: average high 95.9°, average low 78.4°. That is 4.6° above the climate normal for August. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 8 days and 2.2 inches. The warmest day looks like 24 August (101.7°), the coolest 16 August (75.2°).
95.9°/78.4°
Average high / low
+4.6°
Above normal
2 / 8
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
94.6°
87.6°
+3.9°
19 August – 28 August
98°
87.3°
+5.9°
29 August – 7 September
at normal
86°
—
August records over 66 years
104.9°27 August 2023All-time high
67.3°9 August 1989All-time low
Climate normals and records are computed from the nearest reference point — Port Arthur (8 mi).
Mon, 1091° / 77°0
91 °
Port Neches, Monday, 10 August
Partly cloudy. High 91°, low 77°.
Pressure30.09 inHg
Wind8.5 mph S
Humidity52%
Visibility6.2 mi
Dew point71°
Tue, 1195° / 80°0
95 °
Port Neches, Tuesday, 11 August
Clear. High 95°, low 80°.
Pressure30.09 inHg
Wind7.7 mph S
Humidity48%
Visibility6.2 mi
Dew point70°
Wed, 1295° / 79°0
95 °
Port Neches, Wednesday, 12 August
Clear. High 95°, low 79°.
Pressure30.00 inHg
Wind9.3 mph S
Humidity51%
Visibility6.2 mi
Dew point73°
Thu, 1394° / 80°0
94 °
Port Neches, Thursday, 13 August
Clear. High 94°, low 80°.
Pressure30.00 inHg
Wind12.1 mph S
Humidity43%
Visibility—
Dew point66°
Fri, 1494° / 79°0
94 °
Port Neches, Friday, 14 August
Overcast. High 94°, low 79°.
Pressure30.09 inHg
Wind12.4 mph S
Humidity49%
Visibility—
Dew point70°
Sat, 1596° / 80°0.01
96 °
Port Neches, Saturday, 15 August
Light rain. High 96°, low 80°.
Pressure30.15 inHg
Wind11.8 mph S
Humidity41%
Visibility—
Dew point66°
Sun, 1697° / 75°0
97 °
Port Neches, Sunday, 16 August
Clear. High 97°, low 75°.
Pressure30.15 inHg
Wind11.7 mph S
Humidity41%
Visibility—
Dew point65°
Mon, 1797° / 78°0
97 °
Port Neches, Monday, 17 August
Clear. High 97°, low 78°.
Pressure30.06 inHg
Wind10.7 mph S
Humidity42%
Visibility—
Dew point66°
Tue, 1897° / 78°0
97 °
Port Neches, Tuesday, 18 August
Clear. High 97°, low 78°.
Pressure30.00 inHg
Wind12 mph S
Humidity42%
Visibility—
Dew point66°
Wed, 1997° / 79°0
97 °
Port Neches, Wednesday, 19 August
Clear. High 97°, low 79°.
Pressure29.97 inHg
Wind12.7 mph S
Humidity40%
Visibility—
Dew point66°
Thu, 2097° / 78°0
97 °
Port Neches, Thursday, 20 August
Clear. High 97°, low 78°.
Pressure29.97 inHg
Wind12.8 mph S
Humidity38%
Visibility—
Dew point65°
Fri, 2196° / 78°0
96 °
Port Neches, Friday, 21 August
Clear. High 96°, low 78°.
Pressure29.91 inHg
Wind13.8 mph S
Humidity43%
Visibility—
Dew point68°
Sat, 2296° / 79°0
96 °
Port Neches, Saturday, 22 August
Partly cloudy. High 96°, low 79°.
Pressure30.00 inHg
Wind12.6 mph S
Humidity44%
Visibility—
Dew point69°
Sun, 23100° / 79°0
100 °
Port Neches, Sunday, 23 August
Mostly clear. High 100°, low 79°.
Pressure30.03 inHg
Wind11.6 mph S
Humidity42%
Visibility—
Dew point68°
Mon, 24102° / 79°0.58
102 °
Port Neches, Monday, 24 August
Rain. High 102°, low 79°.
Pressure30.00 inHg
Wind16.1 mph S
Humidity41%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2587° / 78°0.16
87 °
Port Neches, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.16 in
Chance of precipitation62%
Record high95° (2023)
Record low70° (1966)
Wed, 2687° / 78°0.17
87 °
Port Neches, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.17 in
Chance of precipitation47%
Record high98° (2023)
Record low70° (1966)
Thu, 2787° / 78°0.25
87 °
Port Neches, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.25 in
Chance of precipitation57%
Record high105° (2023)
Record low73° (1966)
Fri, 2887° / 78°0.32
87 °
Port Neches, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.32 in
Chance of precipitation67%
Record high97° (2011)
Record low72° (1968)
Sat, 2986° / 77°0.32
86 °
Port Neches, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low77°
Average precipitation0.32 in
Chance of precipitation50%
Record high99° (2011)
Record low71° (1986)
Sun, 3086° / 77°0.35
86 °
Port Neches, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high86°
Average low77°
Average precipitation0.35 in
Chance of precipitation50%
Record high98° (2000)
Record low69° (2017)
Mon, 3187° / 78°0.25
87 °
Port Neches, Monday, 31 August
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.25 in
Chance of precipitation63%
Record high101° (2000)
Record low72° (2017)
Tue, 0186° / 77°0.2
86 °
Port Neches, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high86°
Average low77°
Average precipitation0.2 in
Chance of precipitation62%
Record high100° (2000)
Record low71° (2017)
Wed, 0286° / 77°0.17
86 °
Port Neches, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high86°
Average low77°
Average precipitation0.17 in
Chance of precipitation55%
Record high98° (2000)
Record low69° (1967)
Thu, 0386° / 77°0.25
86 °
Port Neches, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high86°
Average low77°
Average precipitation0.25 in
Chance of precipitation60%
Record high98° (2000)
Record low70° (1987)
Fri, 0486° / 77°0.27
86 °
Port Neches, Friday, 4 September
Climate normal for this date — 60-year average.
Average high86°
Average low77°
Average precipitation0.27 in
Chance of precipitation58%
Record high101° (2000)
Record low66° (1974)
Sat, 0586° / 76°0.26
86 °
Port Neches, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.26 in
Chance of precipitation48%
Record high100° (2000)
Record low62° (1974)
Sun, 0685° / 76°0.24
85 °
Port Neches, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.24 in
Chance of precipitation47%
Record high95° (2023)
Record low63° (1974)
Mon, 0785° / 76°0.14
85 °
Port Neches, Monday, 7 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.14 in
Chance of precipitation50%
Record high97° (2023)
Record low66° (2017)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Port Neches, TX are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Port Neches, TX since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.