Monthly outlook for Green Valley, TX: average high 106.7°, average low 80.7°. That is 7.5° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 21 August (112.1°), the coolest 9 August (76.9°).
106.7°/80.7°
Average high / low
+7.5°
Above normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
105.3°
93.3°
+6.7°
19 August – 28 August
109°
92.8°
+9°
29 August – 7 September
at normal
89.9°
—
August records over 66 years
110.5°18 August 2023All-time high
59.9°25 August 1966All-time low
Climate normals and records are computed from the nearest reference point — Denton (8 mi).
Mon, 10100° / 79°0
100 °
Green Valley, Monday, 10 August
Clear. High 100°, low 79°.
Pressure30.00 inHg
Wind13.5 mph S
Humidity35%
Visibility6.2 mi
Dew point65°
Tue, 11104° / 81°0
104 °
Green Valley, Tuesday, 11 August
Clear. High 104°, low 81°.
Pressure29.94 inHg
Wind14.9 mph S
Humidity35%
Visibility6.2 mi
Dew point65°
Wed, 12105° / 81°0
105 °
Green Valley, Wednesday, 12 August
Partly cloudy. High 105°, low 81°.
Pressure29.88 inHg
Wind15.3 mph S
Humidity33%
Visibility6.2 mi
Dew point65°
Thu, 13105° / 81°0
105 °
Green Valley, Thursday, 13 August
Partly cloudy. High 105°, low 81°.
Pressure29.88 inHg
Wind21 mph S
Humidity26%
Visibility—
Dew point57°
Fri, 14105° / 80°0
105 °
Green Valley, Friday, 14 August
Mostly clear. High 105°, low 80°.
Pressure29.97 inHg
Wind21.2 mph S
Humidity30%
Visibility—
Dew point61°
Sat, 15106° / 82°0
106 °
Green Valley, Saturday, 15 August
Clear. High 106°, low 82°.
Pressure30.06 inHg
Wind16.3 mph S
Humidity29%
Visibility—
Dew point61°
Sun, 16108° / 82°0
108 °
Green Valley, Sunday, 16 August
Clear. High 108°, low 82°.
Pressure30.06 inHg
Wind15.2 mph S
Humidity24%
Visibility—
Dew point58°
Mon, 17109° / 80°0
109 °
Green Valley, Monday, 17 August
Clear. High 109°, low 80°.
Pressure29.97 inHg
Wind13.3 mph S
Humidity16%
Visibility—
Dew point47°
Tue, 18110° / 81°0
110 °
Green Valley, Tuesday, 18 August
Clear. High 110°, low 81°.
Pressure29.91 inHg
Wind14.9 mph S
Humidity16%
Visibility—
Dew point48°
Wed, 19110° / 81°0
110 °
Green Valley, Wednesday, 19 August
Clear. High 110°, low 81°.
Pressure29.91 inHg
Wind14.5 mph S
Humidity19%
Visibility—
Dew point53°
Thu, 20112° / 82°0
112 °
Green Valley, Thursday, 20 August
Partly cloudy. High 112°, low 82°.
Pressure29.91 inHg
Wind14.5 mph S
Humidity18%
Visibility—
Dew point53°
Fri, 21112° / 82°0.02
112 °
Green Valley, Friday, 21 August
Light rain. High 112°, low 82°.
Pressure29.88 inHg
Wind17.1 mph SE
Humidity19%
Visibility—
Dew point54°
Sat, 22108° / 82°0.02
108 °
Green Valley, Saturday, 22 August
Light rain. High 108°, low 82°.
Pressure29.88 inHg
Wind15.6 mph SE
Humidity23%
Visibility—
Dew point58°
Sun, 23105° / 79°0.01
105 °
Green Valley, Sunday, 23 August
Light rain. High 105°, low 79°.
Pressure29.88 inHg
Wind12.8 mph SE
Humidity28%
Visibility—
Dew point60°
Mon, 24107° / 82°0
107 °
Green Valley, Monday, 24 August
Light rain. High 107°, low 82°.
Pressure29.88 inHg
Wind15.6 mph S
Humidity23%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2593° / 76°0.02
93 °
Green Valley, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high93°
Average low76°
Average precipitation0.02 in
Chance of precipitation13%
Record high106° (2023)
Record low60° (1966)
Wed, 2693° / 76°0.05
93 °
Green Valley, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high93°
Average low76°
Average precipitation0.05 in
Chance of precipitation22%
Record high107° (2023)
Record low64° (1966)
Thu, 2792° / 76°0.05
92 °
Green Valley, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high92°
Average low76°
Average precipitation0.05 in
Chance of precipitation23%
Record high104° (2011)
Record low65° (1966)
Fri, 2891° / 75°0.08
91 °
Green Valley, Friday, 28 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.08 in
Chance of precipitation30%
Record high105° (2011)
Record low62° (1992)
Sat, 2991° / 75°0.08
91 °
Green Valley, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.08 in
Chance of precipitation22%
Record high104° (2020)
Record low64° (1986)
Sun, 3091° / 74°0.07
91 °
Green Valley, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high91°
Average low74°
Average precipitation0.07 in
Chance of precipitation30%
Record high102° (2000)
Record low65° (2004)
Mon, 3191° / 75°0.07
91 °
Green Valley, Monday, 31 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.07 in
Chance of precipitation23%
Record high103° (2000)
Record low66° (2004)
Tue, 0190° / 74°0.17
90 °
Green Valley, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high90°
Average low74°
Average precipitation0.17 in
Chance of precipitation30%
Record high103° (2000)
Record low66° (1986)
Wed, 0290° / 74°0.11
90 °
Green Valley, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high90°
Average low74°
Average precipitation0.11 in
Chance of precipitation32%
Record high105° (2000)
Record low63° (1974)
Thu, 0390° / 74°0.12
90 °
Green Valley, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high90°
Average low74°
Average precipitation0.12 in
Chance of precipitation33%
Record high105° (2000)
Record low59° (1974)
Fri, 0489° / 74°0.08
89 °
Green Valley, Friday, 4 September
Climate normal for this date — 60-year average.
Average high89°
Average low74°
Average precipitation0.08 in
Chance of precipitation25%
Record high108° (2000)
Record low58° (1974)
Sat, 0589° / 73°0.1
89 °
Green Valley, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high89°
Average low73°
Average precipitation0.1 in
Chance of precipitation22%
Record high101° (2023)
Record low56° (1974)
Sun, 0689° / 73°0.14
89 °
Green Valley, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high89°
Average low73°
Average precipitation0.14 in
Chance of precipitation22%
Record high100° (2023)
Record low55° (1974)
Mon, 0789° / 73°0.06
89 °
Green Valley, Monday, 7 September
Climate normal for this date — 60-year average.
Average high89°
Average low73°
Average precipitation0.06 in
Chance of precipitation22%
Record high106° (2023)
Record low60° (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 Green Valley, 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 Green Valley, 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.