Monthly outlook for Coppell, TX: average high 104.1°, average low 83.6°. That is 5.7° above the climate normal for August. Precipitation is expected on 0 days (about 0.1 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 18 August (107.8°), the coolest 8 August (76.7°).
104.1°/83.6°
Average high / low
+5.7°
Above normal
0 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
103°
93.8°
+5.1°
18 August – 27 August
105.9°
93.5°
+6.9°
28 August – 6 September
at normal
90.6°
—
August records over 66 years
109.2°18 August 2023All-time high
60.6°25 August 1966All-time low
Climate normals and records are computed from the nearest reference point — Carrollton (6 mi).
Sun, 0997° / 77°0
97 °
Coppell, Sunday, 9 August
Partly cloudy. High 97°, low 77°.
Pressure30.00 inHg
Wind9.8 mph S
Humidity40%
Visibility6.2 mi
Dew point66°
Mon, 10103° / 80°0
103 °
Coppell, Monday, 10 August
Clear. High 103°, low 80°.
Pressure30.00 inHg
Wind10.6 mph S
Humidity36%
Visibility6.2 mi
Dew point64°
Tue, 11104° / 84°0
104 °
Coppell, Tuesday, 11 August
Partly cloudy. High 104°, low 84°.
Pressure29.97 inHg
Wind11.4 mph S
Humidity36%
Visibility6.2 mi
Dew point65°
Wed, 12105° / 84°0
105 °
Coppell, Wednesday, 12 August
Mostly clear. High 105°, low 84°.
Pressure29.91 inHg
Wind11.8 mph S
Humidity34%
Visibility6.2 mi
Dew point64°
Thu, 13106° / 84°0
106 °
Coppell, Thursday, 13 August
Overcast. High 106°, low 84°.
Pressure29.83 inHg
Wind17.3 mph S
Humidity28%
Visibility—
Dew point59°
Fri, 14104° / 84°0
104 °
Coppell, Friday, 14 August
Mostly clear. High 104°, low 84°.
Pressure29.97 inHg
Wind18.4 mph S
Humidity33%
Visibility—
Dew point63°
Sat, 1599° / 86°0.01
99 °
Coppell, Saturday, 15 August
Light rain. High 99°, low 86°.
Pressure30.12 inHg
Wind16 mph S
Humidity42%
Visibility—
Dew point64°
Sun, 16105° / 86°0
105 °
Coppell, Sunday, 16 August
Overcast. High 105°, low 86°.
Pressure30.06 inHg
Wind13.3 mph SE
Humidity28%
Visibility—
Dew point60°
Mon, 17106° / 87°0
106 °
Coppell, Monday, 17 August
Mostly clear. High 106°, low 87°.
Pressure30.00 inHg
Wind15.1 mph S
Humidity24%
Visibility—
Dew point57°
Tue, 18108° / 87°0
108 °
Coppell, Tuesday, 18 August
Mostly clear. High 108°, low 87°.
Pressure29.94 inHg
Wind13.3 mph S
Humidity20%
Visibility—
Dew point53°
Wed, 19108° / 87°0
108 °
Coppell, Wednesday, 19 August
Mostly clear. High 108°, low 87°.
Pressure29.91 inHg
Wind15.2 mph S
Humidity27%
Visibility—
Dew point60°
Thu, 20107° / 86°0
107 °
Coppell, Thursday, 20 August
Clear. High 107°, low 86°.
Pressure29.85 inHg
Wind14.6 mph S
Humidity25%
Visibility—
Dew point58°
Fri, 21107° / 86°0
107 °
Coppell, Friday, 21 August
Mostly clear. High 107°, low 86°.
Pressure29.85 inHg
Wind15.5 mph S
Humidity25%
Visibility—
Dew point58°
Sat, 22100° / 83°0.02
100 °
Coppell, Saturday, 22 August
Light rain. High 100°, low 83°.
Pressure29.88 inHg
Wind11.8 mph SW
Humidity44%
Visibility—
Dew point65°
Sun, 23105° / 81°0.02
105 °
Coppell, Sunday, 23 August
Light rain. High 105°, low 81°.
Pressure29.91 inHg
Wind12.4 mph NE
Humidity27%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2494° / 77°0.06
94 °
Coppell, Monday, 24 August
Climate normal for this date — 60-year average.
Average high94°
Average low77°
Average precipitation0.06 in
Chance of precipitation18%
Record high104° (2011)
Record low64° (1961)
Tue, 2593° / 77°0.02
93 °
Coppell, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high93°
Average low77°
Average precipitation0.02 in
Chance of precipitation12%
Record high107° (2023)
Record low61° (1966)
Wed, 2693° / 77°0.05
93 °
Coppell, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high93°
Average low77°
Average precipitation0.05 in
Chance of precipitation18%
Record high106° (2023)
Record low67° (1966)
Thu, 2793° / 76°0.06
93 °
Coppell, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high93°
Average low76°
Average precipitation0.06 in
Chance of precipitation23%
Record high104° (2011)
Record low66° (1966)
Fri, 2892° / 76°0.09
92 °
Coppell, Friday, 28 August
Climate normal for this date — 60-year average.
Average high92°
Average low76°
Average precipitation0.09 in
Chance of precipitation27%
Record high105° (2011)
Record low64° (1992)
Sat, 2991° / 76°0.08
91 °
Coppell, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high91°
Average low76°
Average precipitation0.08 in
Chance of precipitation23%
Record high103° (2020)
Record low65° (1986)
Sun, 3091° / 75°0.07
91 °
Coppell, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.07 in
Chance of precipitation25%
Record high102° (2000)
Record low65° (1986)
Mon, 3191° / 76°0.09
91 °
Coppell, Monday, 31 August
Climate normal for this date — 60-year average.
Average high91°
Average low76°
Average precipitation0.09 in
Chance of precipitation25%
Record high103° (2011)
Record low67° (2004)
Tue, 0191° / 75°0.18
91 °
Coppell, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.18 in
Chance of precipitation30%
Record high103° (2000)
Record low68° (1967)
Wed, 0290° / 75°0.14
90 °
Coppell, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high90°
Average low75°
Average precipitation0.14 in
Chance of precipitation30%
Record high105° (2000)
Record low64° (1987)
Thu, 0390° / 74°0.1
90 °
Coppell, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high90°
Average low74°
Average precipitation0.1 in
Chance of precipitation30%
Record high105° (2000)
Record low61° (1974)
Fri, 0490° / 74°0.06
90 °
Coppell, Friday, 4 September
Climate normal for this date — 60-year average.
Average high90°
Average low74°
Average precipitation0.06 in
Chance of precipitation25%
Record high107° (2000)
Record low59° (1974)
Sat, 0590° / 74°0.14
90 °
Coppell, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high90°
Average low74°
Average precipitation0.14 in
Chance of precipitation20%
Record high102° (2023)
Record low57° (1974)
Sun, 0690° / 73°0.13
90 °
Coppell, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high90°
Average low73°
Average precipitation0.13 in
Chance of precipitation18%
Record high102° (2023)
Record low56° (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 Coppell, 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 Coppell, 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.