Monthly outlook for Mount Houston, TX: average high 102.6°, average low 81.3°. That is 5.9° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 7 days and 1.7 inches. The warmest day looks like 20 August (107.2°), the coolest 9 August (76.5°).
102.6°/81.3°
Average high / low
+5.9°
Above normal
0 / 7
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
101°
92.2°
+4.9°
19 August – 28 August
105.4°
91.2°
+7.9°
29 August – 7 September
at normal
89.5°
—
August records over 66 years
106.9°27 August 2023All-time high
62.4°10 August 1989All-time low
Climate normals and records are computed from the nearest reference point — Houston (9 mi).
Mon, 1098° / 77°0.01
98 °
Mount Houston, Monday, 10 August
Light rain. High 98°, low 77°.
Pressure30.06 inHg
Wind5.9 mph S
Humidity42%
Visibility6.2 mi
Dew point69°
Tue, 11101° / 81°0
101 °
Mount Houston, Tuesday, 11 August
Clear. High 101°, low 81°.
Pressure30.06 inHg
Wind6.2 mph S
Humidity40%
Visibility6.2 mi
Dew point67°
Wed, 12104° / 82°0
104 °
Mount Houston, Wednesday, 12 August
Clear. High 104°, low 82°.
Pressure29.97 inHg
Wind7.6 mph S
Humidity39%
Visibility6.2 mi
Dew point67°
Thu, 13102° / 81°0
102 °
Mount Houston, Thursday, 13 August
Partly cloudy. High 102°, low 81°.
Pressure29.94 inHg
Wind14.7 mph SE
Humidity29%
Visibility—
Dew point60°
Fri, 14101° / 82°0
101 °
Mount Houston, Friday, 14 August
Partly cloudy. High 101°, low 82°.
Pressure30.03 inHg
Wind14.3 mph SE
Humidity36%
Visibility—
Dew point66°
Sat, 15102° / 84°0
102 °
Mount Houston, Saturday, 15 August
Partly cloudy. High 102°, low 84°.
Pressure30.12 inHg
Wind13.8 mph SE
Humidity37%
Visibility—
Dew point67°
Sun, 16103° / 82°0
103 °
Mount Houston, Sunday, 16 August
Clear. High 103°, low 82°.
Pressure30.12 inHg
Wind11.9 mph SE
Humidity27%
Visibility—
Dew point58°
Mon, 17103° / 80°0
103 °
Mount Houston, Monday, 17 August
Clear. High 103°, low 80°.
Pressure30.09 inHg
Wind12.7 mph SE
Humidity29%
Visibility—
Dew point59°
Tue, 18103° / 82°0
103 °
Mount Houston, Tuesday, 18 August
Clear. High 103°, low 82°.
Pressure30.06 inHg
Wind12.8 mph SE
Humidity37%
Visibility—
Dew point66°
Wed, 19106° / 82°0
106 °
Mount Houston, Wednesday, 19 August
Clear. High 106°, low 82°.
Pressure30.00 inHg
Wind12.7 mph SE
Humidity35%
Visibility—
Dew point65°
Thu, 20107° / 82°0
107 °
Mount Houston, Thursday, 20 August
Clear. High 107°, low 82°.
Pressure29.94 inHg
Wind13 mph SE
Humidity30%
Visibility—
Dew point61°
Fri, 21107° / 82°0
107 °
Mount Houston, Friday, 21 August
Clear. High 107°, low 82°.
Pressure29.91 inHg
Wind14.1 mph S
Humidity31%
Visibility—
Dew point62°
Sat, 22107° / 82°0
107 °
Mount Houston, Saturday, 22 August
Clear. High 107°, low 82°.
Pressure29.94 inHg
Wind14.7 mph S
Humidity29%
Visibility—
Dew point60°
Sun, 23105° / 82°0
105 °
Mount Houston, Sunday, 23 August
Clear. High 105°, low 82°.
Pressure30.00 inHg
Wind13.5 mph SE
Humidity27%
Visibility—
Dew point59°
Mon, 24101° / 84°0
101 °
Mount Houston, Monday, 24 August
Partly cloudy. High 101°, low 84°.
Pressure30.03 inHg
Wind9.2 mph S
Humidity34%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2591° / 75°0.11
91 °
Mount Houston, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.11 in
Chance of precipitation43%
Record high100° (2023)
Record low66° (1961)
Wed, 2691° / 75°0.16
91 °
Mount Houston, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.16 in
Chance of precipitation37%
Record high103° (2023)
Record low67° (1997)
Thu, 2791° / 75°0.18
91 °
Mount Houston, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.18 in
Chance of precipitation47%
Record high107° (2023)
Record low67° (1970)
Fri, 2890° / 75°0.19
90 °
Mount Houston, Friday, 28 August
Climate normal for this date — 60-year average.
Average high90°
Average low75°
Average precipitation0.19 in
Chance of precipitation55%
Record high104° (2011)
Record low69° (1970)
Sat, 2990° / 75°0.22
90 °
Mount Houston, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high90°
Average low75°
Average precipitation0.22 in
Chance of precipitation53%
Record high103° (2011)
Record low65° (1992)
Sun, 3090° / 75°0.13
90 °
Mount Houston, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high90°
Average low75°
Average precipitation0.13 in
Chance of precipitation47%
Record high102° (2000)
Record low67° (1992)
Mon, 3190° / 75°0.17
90 °
Mount Houston, Monday, 31 August
Climate normal for this date — 60-year average.
Average high90°
Average low75°
Average precipitation0.17 in
Chance of precipitation60%
Record high104° (2000)
Record low69° (1972)
Tue, 0190° / 75°0.15
90 °
Mount Houston, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high90°
Average low75°
Average precipitation0.15 in
Chance of precipitation48%
Record high104° (2000)
Record low67° (2004)
Wed, 0290° / 75°0.13
90 °
Mount Houston, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high90°
Average low75°
Average precipitation0.13 in
Chance of precipitation50%
Record high102° (2000)
Record low69° (1967)
Thu, 0389° / 75°0.17
89 °
Mount Houston, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high89°
Average low75°
Average precipitation0.17 in
Chance of precipitation60%
Record high103° (2000)
Record low63° (1987)
Fri, 0489° / 74°0.18
89 °
Mount Houston, Friday, 4 September
Climate normal for this date — 60-year average.
Average high89°
Average low74°
Average precipitation0.18 in
Chance of precipitation52%
Record high107° (2000)
Record low66° (1974)
Sat, 0589° / 74°0.14
89 °
Mount Houston, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high89°
Average low74°
Average precipitation0.14 in
Chance of precipitation42%
Record high106° (2000)
Record low59° (1974)
Sun, 0689° / 73°0.11
89 °
Mount Houston, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high89°
Average low73°
Average precipitation0.11 in
Chance of precipitation48%
Record high97° (2023)
Record low60° (1974)
Mon, 0789° / 73°0.1
89 °
Mount Houston, Monday, 7 September
Climate normal for this date — 60-year average.
Average high89°
Average low73°
Average precipitation0.1 in
Chance of precipitation42%
Record high100° (2023)
Record low61° (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 Mount Houston, 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 Mount Houston, 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.