Monthly outlook for Bayou Vista, TX: average high 88.4°, average low 80.9°. That is 0.1° above the climate normal for August. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 8 days and 1.9 inches. The warmest day looks like 20 August (90.8°), the coolest 9 August (77.5°).
88.4°/80.9°
Average high / low
+0.1°
Above normal
1 / 8
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
88.1°
88.3°
-0.1°
19 August – 28 August
88.9°
87.7°
+0.7°
29 August – 7 September
at normal
86.5°
—
August records over 66 years
103.5°27 August 2023All-time high
67.6°13 August 1967All-time low
Climate normals and records are computed from the nearest reference point — Texas City (6 mi).
Mon, 1091° / 80°0.2
91 °
Bayou Vista, Monday, 10 August
Rain. High 91°, low 80°.
Pressure30.06 inHg
Wind11 mph S
Humidity66%
Visibility6.2 mi
Dew point73°
Tue, 1188° / 83°0
88 °
Bayou Vista, Tuesday, 11 August
Clear. High 88°, low 83°.
Pressure30.06 inHg
Wind11.1 mph S
Humidity68%
Visibility6.2 mi
Dew point75°
Wed, 1288° / 83°0
88 °
Bayou Vista, Wednesday, 12 August
Clear. High 88°, low 83°.
Pressure30.00 inHg
Wind13.9 mph S
Humidity70%
Visibility6.2 mi
Dew point76°
Thu, 1387° / 83°0
87 °
Bayou Vista, Thursday, 13 August
Clear. High 87°, low 83°.
Pressure30.00 inHg
Wind16 mph S
Humidity65%
Visibility—
Dew point73°
Fri, 1487° / 83°0.02
87 °
Bayou Vista, Friday, 14 August
Light rain. High 87°, low 83°.
Pressure30.06 inHg
Wind16.7 mph S
Humidity71%
Visibility—
Dew point76°
Sat, 1587° / 83°0.02
87 °
Bayou Vista, Saturday, 15 August
Light rain. High 87°, low 83°.
Pressure30.15 inHg
Wind13.6 mph S
Humidity69%
Visibility—
Dew point76°
Sun, 1688° / 80°0
88 °
Bayou Vista, Sunday, 16 August
Partly cloudy. High 88°, low 80°.
Pressure30.15 inHg
Wind13.3 mph S
Humidity62%
Visibility—
Dew point71°
Mon, 1788° / 78°0
88 °
Bayou Vista, Monday, 17 August
Clear. High 88°, low 78°.
Pressure30.09 inHg
Wind12.5 mph S
Humidity61%
Visibility—
Dew point71°
Tue, 1889° / 80°0
89 °
Bayou Vista, Tuesday, 18 August
Mostly clear. High 89°, low 80°.
Pressure30.00 inHg
Wind13.9 mph S
Humidity59%
Visibility—
Dew point71°
Wed, 1989° / 81°0
89 °
Bayou Vista, Wednesday, 19 August
Clear. High 89°, low 81°.
Pressure30.00 inHg
Wind15.4 mph S
Humidity65%
Visibility—
Dew point75°
Thu, 2091° / 80°0
91 °
Bayou Vista, Thursday, 20 August
Partly cloudy. High 91°, low 80°.
Pressure30.00 inHg
Wind15.8 mph S
Humidity60%
Visibility—
Dew point74°
Fri, 2190° / 81°0
90 °
Bayou Vista, Friday, 21 August
Clear. High 90°, low 81°.
Pressure29.94 inHg
Wind15 mph S
Humidity62%
Visibility—
Dew point73°
Sat, 2288° / 80°0.01
88 °
Bayou Vista, Saturday, 22 August
Light rain. High 88°, low 80°.
Pressure29.94 inHg
Wind13.8 mph S
Humidity63%
Visibility—
Dew point73°
Sun, 2388° / 81°0
88 °
Bayou Vista, Sunday, 23 August
Partly cloudy. High 88°, low 81°.
Pressure29.94 inHg
Wind12.5 mph S
Humidity61%
Visibility—
Dew point71°
Mon, 2488° / 81°0
88 °
Bayou Vista, Monday, 24 August
Clear. High 88°, low 81°.
Pressure29.97 inHg
Wind15.8 mph S
Humidity64%
Visibility—
Dew point73°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2587° / 78°0.15
87 °
Bayou Vista, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.15 in
Chance of precipitation58%
Record high93° (1990)
Record low70° (1961)
Wed, 2688° / 77°0.19
88 °
Bayou Vista, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high88°
Average low77°
Average precipitation0.19 in
Chance of precipitation55%
Record high95° (1990)
Record low70° (1997)
Thu, 2787° / 78°0.21
87 °
Bayou Vista, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.21 in
Chance of precipitation55%
Record high103° (2023)
Record low72° (2015)
Fri, 2887° / 77°0.22
87 °
Bayou Vista, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low77°
Average precipitation0.22 in
Chance of precipitation60%
Record high98° (2011)
Record low72° (1992)
Sat, 2987° / 77°0.33
87 °
Bayou Vista, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high87°
Average low77°
Average precipitation0.33 in
Chance of precipitation62%
Record high99° (2011)
Record low72° (1992)
Sun, 3087° / 77°0.17
87 °
Bayou Vista, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high87°
Average low77°
Average precipitation0.17 in
Chance of precipitation53%
Record high99° (2000)
Record low71° (2017)
Mon, 3187° / 77°0.18
87 °
Bayou Vista, Monday, 31 August
Climate normal for this date — 60-year average.
Average high87°
Average low77°
Average precipitation0.18 in
Chance of precipitation60%
Record high102° (2000)
Record low71° (2006)
Tue, 0187° / 77°0.19
87 °
Bayou Vista, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low77°
Average precipitation0.19 in
Chance of precipitation58%
Record high100° (2000)
Record low71° (2017)
Wed, 0287° / 77°0.14
87 °
Bayou Vista, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high87°
Average low77°
Average precipitation0.14 in
Chance of precipitation57%
Record high98° (2000)
Record low73° (2017)
Thu, 0387° / 77°0.19
87 °
Bayou Vista, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high87°
Average low77°
Average precipitation0.19 in
Chance of precipitation62%
Record high99° (2000)
Record low67° (1987)
Fri, 0486° / 77°0.23
86 °
Bayou Vista, Friday, 4 September
Climate normal for this date — 60-year average.
Average high86°
Average low77°
Average precipitation0.23 in
Chance of precipitation67%
Record high103° (2000)
Record low67° (1974)
Sat, 0586° / 76°0.19
86 °
Bayou Vista, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.19 in
Chance of precipitation53%
Record high102° (2000)
Record low62° (1974)
Sun, 0686° / 76°0.16
86 °
Bayou Vista, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.16 in
Chance of precipitation52%
Record high93° (1971)
Record low62° (1974)
Mon, 0786° / 76°0.14
86 °
Bayou Vista, Monday, 7 September
Climate normal for this date — 60-year average.
Average high86°
Average low76°
Average precipitation0.14 in
Chance of precipitation53%
Record high96° (2023)
Record low67° (2003)
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 Bayou Vista, 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 Bayou Vista, 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.