Monthly outlook for Port Mansfield, TX: average high 92.1°, average low 79.5°. That is 1.5° above the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 6 days and 1.3 inches. The warmest day looks like 9 August (93.4°), the coolest 17 August (76.4°).
92.1°/79.5°
Average high / low
+1.5°
Above normal
1 / 6
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
91.9°
89.6°
+1.3°
19 August – 28 August
92.4°
88.7°
+2.1°
29 August – 7 September
at normal
87.5°
—
August records over 66 years
98.8°17 August 2023All-time high
70.9°15 August 1967All-time low
Mon, 1092° / 79°0
92 °
Port Mansfield, Monday, 10 August
Light rain. High 92°, low 79°.
Pressure30.00 inHg
Wind17.8 mph SE
Humidity52%
Visibility6.2 mi
Dew point72°
Tue, 1192° / 79°0
92 °
Port Mansfield, Tuesday, 11 August
Clear. High 92°, low 79°.
Pressure30.00 inHg
Wind18.4 mph SE
Humidity56%
Visibility6.2 mi
Dew point73°
Wed, 1293° / 80°0
93 °
Port Mansfield, Wednesday, 12 August
Clear. High 93°, low 80°.
Pressure29.94 inHg
Wind21.5 mph SE
Humidity51%
Visibility6.2 mi
Dew point71°
Thu, 1393° / 82°0
93 °
Port Mansfield, Thursday, 13 August
Mostly clear. High 93°, low 82°.
Pressure29.91 inHg
Wind22.3 mph SE
Humidity55%
Visibility—
Dew point73°
Fri, 1492° / 81°0
92 °
Port Mansfield, Friday, 14 August
Overcast. High 92°, low 81°.
Pressure30.00 inHg
Wind20.9 mph SE
Humidity56%
Visibility—
Dew point73°
Sat, 1591° / 81°0
91 °
Port Mansfield, Saturday, 15 August
Overcast. High 91°, low 81°.
Pressure30.09 inHg
Wind18.1 mph SE
Humidity56%
Visibility—
Dew point72°
Sun, 1691° / 80°0
91 °
Port Mansfield, Sunday, 16 August
Clear. High 91°, low 80°.
Pressure30.12 inHg
Wind16.9 mph E
Humidity56%
Visibility—
Dew point72°
Mon, 1790° / 76°0
90 °
Port Mansfield, Monday, 17 August
Clear. High 90°, low 76°.
Pressure30.06 inHg
Wind16.9 mph SE
Humidity58%
Visibility—
Dew point71°
Tue, 1891° / 79°0
91 °
Port Mansfield, Tuesday, 18 August
Overcast. High 91°, low 79°.
Pressure30.00 inHg
Wind17.7 mph SE
Humidity55%
Visibility—
Dew point71°
Wed, 1991° / 79°0
91 °
Port Mansfield, Wednesday, 19 August
Clear. High 91°, low 79°.
Pressure30.00 inHg
Wind19 mph SE
Humidity56%
Visibility—
Dew point72°
Thu, 2092° / 79°0
92 °
Port Mansfield, Thursday, 20 August
Clear. High 92°, low 79°.
Pressure29.97 inHg
Wind18.2 mph SE
Humidity50%
Visibility—
Dew point69°
Fri, 2192° / 79°0
92 °
Port Mansfield, Friday, 21 August
Clear. High 92°, low 79°.
Pressure29.91 inHg
Wind17.7 mph E
Humidity54%
Visibility—
Dew point71°
Sat, 2293° / 80°0.03
93 °
Port Mansfield, Saturday, 22 August
Light rain. High 93°, low 80°.
Pressure29.88 inHg
Wind21.1 mph E
Humidity51%
Visibility—
Dew point71°
Sun, 2393° / 80°0.06
93 °
Port Mansfield, Sunday, 23 August
Light rain. High 93°, low 80°.
Pressure29.88 inHg
Wind22.4 mph SE
Humidity54%
Visibility—
Dew point72°
Mon, 2493° / 80°0.03
93 °
Port Mansfield, Monday, 24 August
Light rain. High 93°, low 80°.
Pressure29.91 inHg
Wind23.2 mph SE
Humidity52%
Visibility—
Dew point71°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2588° / 79°0.1
88 °
Port Mansfield, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high88°
Average low79°
Average precipitation0.1 in
Chance of precipitation55%
Record high94° (2004)
Record low75° (1967)
Wed, 2688° / 78°0.1
88 °
Port Mansfield, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.1 in
Chance of precipitation50%
Record high95° (2019)
Record low75° (1961)
Thu, 2789° / 78°0.08
89 °
Port Mansfield, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high89°
Average low78°
Average precipitation0.08 in
Chance of precipitation45%
Record high95° (1990)
Record low73° (1961)
Fri, 2888° / 78°0.13
88 °
Port Mansfield, Friday, 28 August
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.13 in
Chance of precipitation42%
Record high98° (2023)
Record low74° (1970)
Sat, 2988° / 78°0.14
88 °
Port Mansfield, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.14 in
Chance of precipitation67%
Record high97° (2012)
Record low74° (2015)
Sun, 3088° / 78°0.12
88 °
Port Mansfield, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.12 in
Chance of precipitation55%
Record high96° (2012)
Record low75° (1967)
Mon, 3188° / 78°0.14
88 °
Port Mansfield, Monday, 31 August
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.14 in
Chance of precipitation63%
Record high96° (2023)
Record low73° (1967)
Tue, 0188° / 78°0.15
88 °
Port Mansfield, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.15 in
Chance of precipitation63%
Record high97° (2020)
Record low74° (1967)
Wed, 0288° / 78°0.11
88 °
Port Mansfield, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high88°
Average low78°
Average precipitation0.11 in
Chance of precipitation53%
Record high96° (2020)
Record low75° (1967)
Thu, 0387° / 78°0.15
87 °
Port Mansfield, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.15 in
Chance of precipitation53%
Record high96° (2011)
Record low74° (1984)
Fri, 0487° / 78°0.15
87 °
Port Mansfield, Friday, 4 September
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.15 in
Chance of precipitation55%
Record high99° (2011)
Record low72° (1974)
Sat, 0587° / 78°0.15
87 °
Port Mansfield, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.15 in
Chance of precipitation55%
Record high99° (2000)
Record low71° (1974)
Sun, 0687° / 78°0.12
87 °
Port Mansfield, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.12 in
Chance of precipitation52%
Record high94° (2000)
Record low67° (1974)
Mon, 0787° / 77°0.13
87 °
Port Mansfield, Monday, 7 September
Climate normal for this date — 60-year average.
Average high87°
Average low77°
Average precipitation0.13 in
Chance of precipitation53%
Record high94° (2002)
Record low68° (1974)
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 Mansfield, 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 Mansfield, 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.