Monthly outlook for Big Lake, TX: average high 97.5°, average low 74.2°. That is 3.6° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 21 August (101.3°), the coolest 9 August (71.6°).
97.5°/74.2°
Average high / low
+3.6°
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
95.7°
91.3°
+2.5°
19 August – 28 August
100.6°
90.4°
+5.7°
29 August – 7 September
at normal
87.4°
—
August records over 66 years
106.2°10 August 2023All-time high
58.3°26 August 1966All-time low
Mon, 1094° / 74°0
94 °
Big Lake, Monday, 10 August
Clear. High 94°, low 74°.
Pressure29.97 inHg
Wind15.7 mph S
Humidity42%
Visibility6.2 mi
Dew point63°
Tue, 1195° / 73°0
95 °
Big Lake, Tuesday, 11 August
Clear. High 95°, low 73°.
Pressure29.97 inHg
Wind22.2 mph S
Humidity42%
Visibility6.2 mi
Dew point62°
Wed, 1296° / 74°0
96 °
Big Lake, Wednesday, 12 August
Clear. High 96°, low 74°.
Pressure29.88 inHg
Wind22.5 mph S
Humidity45%
Visibility6.2 mi
Dew point64°
Thu, 1397° / 73°0
97 °
Big Lake, Thursday, 13 August
Clear. High 97°, low 73°.
Pressure29.85 inHg
Wind25.3 mph S
Humidity36%
Visibility—
Dew point58°
Fri, 1495° / 74°0
95 °
Big Lake, Friday, 14 August
Clear. High 95°, low 74°.
Pressure29.97 inHg
Wind25.3 mph S
Humidity40%
Visibility—
Dew point61°
Sat, 1594° / 74°0
94 °
Big Lake, Saturday, 15 August
Partly cloudy. High 94°, low 74°.
Pressure30.09 inHg
Wind24.3 mph S
Humidity38%
Visibility—
Dew point59°
Sun, 1696° / 73°0
96 °
Big Lake, Sunday, 16 August
Partly cloudy. High 96°, low 73°.
Pressure30.12 inHg
Wind15.7 mph S
Humidity25%
Visibility—
Dew point48°
Mon, 1798° / 73°0
98 °
Big Lake, Monday, 17 August
Mostly clear. High 98°, low 73°.
Pressure30.06 inHg
Wind12.2 mph S
Humidity25%
Visibility—
Dew point50°
Tue, 1898° / 74°0
98 °
Big Lake, Tuesday, 18 August
Clear. High 98°, low 74°.
Pressure29.97 inHg
Wind13 mph S
Humidity25%
Visibility—
Dew point51°
Wed, 1999° / 74°0
99 °
Big Lake, Wednesday, 19 August
Clear. High 99°, low 74°.
Pressure29.94 inHg
Wind13 mph S
Humidity26%
Visibility—
Dew point52°
Thu, 20101° / 75°0
101 °
Big Lake, Thursday, 20 August
Clear. High 101°, low 75°.
Pressure29.91 inHg
Wind13.7 mph S
Humidity25%
Visibility—
Dew point52°
Fri, 21101° / 75°0
101 °
Big Lake, Friday, 21 August
Clear. High 101°, low 75°.
Pressure29.85 inHg
Wind16.4 mph S
Humidity23%
Visibility—
Dew point51°
Sat, 22101° / 75°0
101 °
Big Lake, Saturday, 22 August
Mostly clear. High 101°, low 75°.
Pressure29.94 inHg
Wind16.4 mph S
Humidity26%
Visibility—
Dew point54°
Sun, 23101° / 75°0.01
101 °
Big Lake, Sunday, 23 August
Light rain. High 101°, low 75°.
Pressure30.03 inHg
Wind13.9 mph S
Humidity27%
Visibility—
Dew point54°
Mon, 24100° / 79°0.03
100 °
Big Lake, Monday, 24 August
Light rain. High 100°, low 79°.
Pressure30.00 inHg
Wind21.5 mph E
Humidity25%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2590° / 72°0.05
90 °
Big Lake, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high90°
Average low72°
Average precipitation0.05 in
Chance of precipitation25%
Record high100° (2019)
Record low62° (1966)
Wed, 2690° / 71°0.04
90 °
Big Lake, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high90°
Average low71°
Average precipitation0.04 in
Chance of precipitation23%
Record high104° (2019)
Record low58° (1966)
Thu, 2790° / 71°0.05
90 °
Big Lake, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high90°
Average low71°
Average precipitation0.05 in
Chance of precipitation23%
Record high102° (2002)
Record low63° (1962)
Fri, 2889° / 71°0.09
89 °
Big Lake, Friday, 28 August
Climate normal for this date — 60-year average.
Average high89°
Average low71°
Average precipitation0.09 in
Chance of precipitation30%
Record high102° (2011)
Record low62° (1992)
Sat, 2988° / 71°0.07
88 °
Big Lake, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high88°
Average low71°
Average precipitation0.07 in
Chance of precipitation22%
Record high102° (2011)
Record low64° (1987)
Sun, 3088° / 71°0.09
88 °
Big Lake, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high88°
Average low71°
Average precipitation0.09 in
Chance of precipitation35%
Record high102° (2011)
Record low62° (2017)
Mon, 3188° / 70°0.1
88 °
Big Lake, Monday, 31 August
Climate normal for this date — 60-year average.
Average high88°
Average low70°
Average precipitation0.1 in
Chance of precipitation23%
Record high100° (2020)
Record low62° (1993)
Tue, 0188° / 70°0.06
88 °
Big Lake, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high88°
Average low70°
Average precipitation0.06 in
Chance of precipitation27%
Record high100° (2020)
Record low60° (1968)
Wed, 0288° / 70°0.06
88 °
Big Lake, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high88°
Average low70°
Average precipitation0.06 in
Chance of precipitation23%
Record high99° (2000)
Record low59° (2003)
Thu, 0387° / 69°0.07
87 °
Big Lake, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.07 in
Chance of precipitation27%
Record high99° (2000)
Record low55° (1974)
Fri, 0487° / 69°0.05
87 °
Big Lake, Friday, 4 September
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.05 in
Chance of precipitation22%
Record high101° (2000)
Record low54° (1974)
Sat, 0587° / 69°0.06
87 °
Big Lake, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.06 in
Chance of precipitation25%
Record high102° (2000)
Record low56° (1974)
Sun, 0687° / 69°0.07
87 °
Big Lake, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.07 in
Chance of precipitation23%
Record high103° (2000)
Record low58° (2011)
Mon, 0787° / 68°0.06
87 °
Big Lake, Monday, 7 September
Climate normal for this date — 60-year average.
Average high87°
Average low68°
Average precipitation0.06 in
Chance of precipitation25%
Record high98° (2023)
Record low58° (1967)
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 Big Lake, 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 Big Lake, 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.