Monthly outlook for Del Mar Heights, TX: average high 96°, average low 80.4°. That is 2.6° above the climate normal for August. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 21 August (98°), the coolest 17 August (77.9°).
96°/80.4°
Average high / low
+2.6°
Above normal
2 / 5
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
95.3°
91.5°
+2.1°
19 August – 28 August
97.1°
90.7°
+3.6°
29 August – 7 September
at normal
89.4°
—
August records over 66 years
101.1°17 August 2023All-time high
69.3°14 August 1967All-time low
Climate normals and records are computed from the nearest reference point — Brownsville (5 mi).
Mon, 1096° / 79°0
96 °
Del Mar Heights, Monday, 10 August
Partly cloudy. High 96°, low 79°.
Pressure30.00 inHg
Wind18.1 mph SE
Humidity45%
Visibility6.2 mi
Dew point70°
Tue, 1196° / 80°0
96 °
Del Mar Heights, Tuesday, 11 August
Clear. High 96°, low 80°.
Pressure30.00 inHg
Wind17.7 mph SE
Humidity46%
Visibility6.2 mi
Dew point71°
Wed, 1296° / 81°0
96 °
Del Mar Heights, Wednesday, 12 August
Clear. High 96°, low 81°.
Pressure29.94 inHg
Wind20.4 mph SE
Humidity42%
Visibility6.2 mi
Dew point68°
Thu, 1395° / 83°0
95 °
Del Mar Heights, Thursday, 13 August
Partly cloudy. High 95°, low 83°.
Pressure29.91 inHg
Wind21.7 mph SE
Humidity45%
Visibility—
Dew point69°
Fri, 1495° / 82°0
95 °
Del Mar Heights, Friday, 14 August
Overcast. High 95°, low 82°.
Pressure30.00 inHg
Wind19.9 mph SE
Humidity45%
Visibility—
Dew point69°
Sat, 1595° / 82°0
95 °
Del Mar Heights, Saturday, 15 August
Overcast. High 95°, low 82°.
Pressure30.09 inHg
Wind18.1 mph SE
Humidity43%
Visibility—
Dew point67°
Sun, 1696° / 81°0
96 °
Del Mar Heights, Sunday, 16 August
Clear. High 96°, low 81°.
Pressure30.09 inHg
Wind17 mph SE
Humidity43%
Visibility—
Dew point67°
Mon, 1795° / 78°0
95 °
Del Mar Heights, Monday, 17 August
Clear. High 95°, low 78°.
Pressure30.03 inHg
Wind17.4 mph E
Humidity45%
Visibility—
Dew point69°
Tue, 1896° / 80°0
96 °
Del Mar Heights, Tuesday, 18 August
Overcast. High 96°, low 80°.
Pressure29.97 inHg
Wind17.6 mph SE
Humidity40%
Visibility—
Dew point66°
Wed, 1997° / 80°0
97 °
Del Mar Heights, Wednesday, 19 August
Clear. High 97°, low 80°.
Pressure29.97 inHg
Wind17.6 mph SE
Humidity35%
Visibility—
Dew point63°
Thu, 2097° / 80°0
97 °
Del Mar Heights, Thursday, 20 August
Clear. High 97°, low 80°.
Pressure29.97 inHg
Wind17.8 mph SE
Humidity32%
Visibility—
Dew point60°
Fri, 2198° / 80°0
98 °
Del Mar Heights, Friday, 21 August
Clear. High 98°, low 80°.
Pressure29.91 inHg
Wind17.9 mph SE
Humidity37%
Visibility—
Dew point65°
Sat, 2298° / 81°0
98 °
Del Mar Heights, Saturday, 22 August
Partly cloudy. High 98°, low 81°.
Pressure29.88 inHg
Wind21.6 mph SE
Humidity38%
Visibility—
Dew point65°
Sun, 2397° / 80°0.05
97 °
Del Mar Heights, Sunday, 23 August
Light rain. High 97°, low 80°.
Pressure29.88 inHg
Wind19.4 mph SE
Humidity41%
Visibility—
Dew point67°
Mon, 2495° / 81°0.05
95 °
Del Mar Heights, Monday, 24 August
Light rain. High 95°, low 81°.
Pressure29.91 inHg
Wind20.8 mph SE
Humidity44%
Visibility—
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2590° / 78°0.1
90 °
Del Mar Heights, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high90°
Average low78°
Average precipitation0.1 in
Chance of precipitation50%
Record high96° (2018)
Record low74° (1967)
Wed, 2690° / 78°0.08
90 °
Del Mar Heights, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high90°
Average low78°
Average precipitation0.08 in
Chance of precipitation52%
Record high97° (2017)
Record low74° (1961)
Thu, 2791° / 78°0.09
91 °
Del Mar Heights, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high91°
Average low78°
Average precipitation0.09 in
Chance of precipitation42%
Record high98° (2020)
Record low71° (1961)
Fri, 2890° / 78°0.15
90 °
Del Mar Heights, Friday, 28 August
Climate normal for this date — 60-year average.
Average high90°
Average low78°
Average precipitation0.15 in
Chance of precipitation50%
Record high100° (2023)
Record low72° (1970)
Sat, 2990° / 78°0.13
90 °
Del Mar Heights, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high90°
Average low78°
Average precipitation0.13 in
Chance of precipitation57%
Record high101° (2012)
Record low73° (1970)
Sun, 3090° / 78°0.11
90 °
Del Mar Heights, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high90°
Average low78°
Average precipitation0.11 in
Chance of precipitation50%
Record high100° (2005)
Record low74° (1967)
Mon, 3190° / 78°0.14
90 °
Del Mar Heights, Monday, 31 August
Climate normal for this date — 60-year average.
Average high90°
Average low78°
Average precipitation0.14 in
Chance of precipitation58%
Record high98° (2023)
Record low71° (1967)
Tue, 0190° / 78°0.13
90 °
Del Mar Heights, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high90°
Average low78°
Average precipitation0.13 in
Chance of precipitation52%
Record high97° (2023)
Record low73° (1967)
Wed, 0290° / 78°0.11
90 °
Del Mar Heights, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high90°
Average low78°
Average precipitation0.11 in
Chance of precipitation48%
Record high97° (2020)
Record low74° (1969)
Thu, 0389° / 78°0.16
89 °
Del Mar Heights, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high89°
Average low78°
Average precipitation0.16 in
Chance of precipitation55%
Record high98° (2011)
Record low74° (1987)
Fri, 0489° / 77°0.15
89 °
Del Mar Heights, Friday, 4 September
Climate normal for this date — 60-year average.
Average high89°
Average low77°
Average precipitation0.15 in
Chance of precipitation50%
Record high103° (2011)
Record low70° (1987)
Sat, 0589° / 77°0.15
89 °
Del Mar Heights, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high89°
Average low77°
Average precipitation0.15 in
Chance of precipitation52%
Record high103° (2000)
Record low71° (1974)
Sun, 0688° / 77°0.15
88 °
Del Mar Heights, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high88°
Average low77°
Average precipitation0.15 in
Chance of precipitation58%
Record high98° (2000)
Record low67° (1974)
Mon, 0788° / 77°0.14
88 °
Del Mar Heights, Monday, 7 September
Climate normal for this date — 60-year average.
Average high88°
Average low77°
Average precipitation0.14 in
Chance of precipitation48%
Record high98° (2023)
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 Del Mar Heights, 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 Del Mar Heights, 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.