Monthly outlook for Alton, TX: average high 85.2°, average low 70.4°. That is 1.1° above the climate normal for October. Precipitation is expected on 6 days (about 0.5 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 2 November (92.7°), the coolest 29 October (61.3°).
85.2°/70.4°
Average high / low
+1.1°
Above normal
6 / 3
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
84.2°
84.1°
+0.1°
30 October – 8 November
86.8°
81.8°
+2.8°
9 November – 18 November
at normal
78.7°
—
October records over 66 years
100.2°18 October 2012All-time high
38.8°31 October 1993All-time low
Climate normals and records are computed from the nearest reference point — McAllen (6 mi).
Wed, 2189° / 68°0.06
89 °
Alton, Wednesday, 21 October
Light rain. High 89°, low 68°.
Pressure30.12 inHg
Wind6 mph N
Humidity57%
Visibility6.2 mi
Dew point67°
Thu, 2283° / 72°0.1
83 °
Alton, Thursday, 22 October
Light rain. High 83°, low 72°.
Pressure30.12 inHg
Wind5.5 mph E
Humidity69%
Visibility6.2 mi
Dew point70°
Fri, 2387° / 67°0
87 °
Alton, Friday, 23 October
Mostly clear. High 87°, low 67°.
Pressure30.09 inHg
Wind7.6 mph E
Humidity53%
Visibility6.2 mi
Dew point64°
Sat, 2487° / 69°0.06
87 °
Alton, Saturday, 24 October
Light rain. High 87°, low 69°.
Pressure30.06 inHg
Wind8.8 mph SE
Humidity51%
Visibility6.2 mi
Dew point64°
Sun, 2586° / 73°0.07
86 °
Alton, Sunday, 25 October
Light rain. High 86°, low 73°.
Pressure30.09 inHg
Wind11.2 mph E
Humidity45%
Visibility—
Dew point59°
Mon, 2684° / 69°0
84 °
Alton, Monday, 26 October
Clear. High 84°, low 69°.
Pressure30.03 inHg
Wind18 mph SE
Humidity49%
Visibility—
Dew point61°
Tue, 2787° / 72°0
87 °
Alton, Tuesday, 27 October
Overcast. High 87°, low 72°.
Pressure30.06 inHg
Wind14.9 mph E
Humidity40%
Visibility—
Dew point56°
Wed, 2880° / 70°0
80 °
Alton, Wednesday, 28 October
Overcast. High 80°, low 70°.
Pressure30.15 inHg
Wind15 mph NE
Humidity51%
Visibility—
Dew point57°
Thu, 2971° / 61°0.18
71 °
Alton, Thursday, 29 October
Light rain. High 71°, low 61°.
Pressure30.21 inHg
Wind12.5 mph N
Humidity70%
Visibility—
Dew point54°
Fri, 3070° / 62°0.02
70 °
Alton, Friday, 30 October
Light rain. High 70°, low 62°.
Pressure30.00 inHg
Wind6.8 mph NW
Humidity76%
Visibility—
Dew point60°
Sat, 3183° / 71°0.04
83 °
Alton, Saturday, 31 October
Light rain. High 83°, low 71°.
Pressure29.80 inHg
Wind12.1 mph SE
Humidity61%
Visibility—
Dew point66°
Sun, 0192° / 74°0
92 °
Alton, Sunday, 1 November
Clear. High 92°, low 74°.
Pressure29.77 inHg
Wind17 mph S
Humidity52%
Visibility—
Dew point67°
Mon, 0293° / 79°0
93 °
Alton, Monday, 2 November
Clear. High 93°, low 79°.
Pressure30.03 inHg
Wind14.5 mph SE
Humidity48%
Visibility—
Dew point67°
Tue, 0391° / 76°0
91 °
Alton, Tuesday, 3 November
Overcast. High 91°, low 76°.
Pressure30.12 inHg
Wind15.2 mph E
Humidity51%
Visibility—
Dew point66°
Wed, 0491° / 75°0
91 °
Alton, Wednesday, 4 November
Clear. High 91°, low 75°.
Pressure30.03 inHg
Wind16.4 mph E
Humidity50%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0581° / 63°0.02
81 °
Alton, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.02 in
Chance of precipitation18%
Record high93° (2017)
Record low44° (1970)
Fri, 0682° / 63°0.06
82 °
Alton, Friday, 6 November
Climate normal for this date — 60-year average.
Average high82°
Average low63°
Average precipitation0.06 in
Chance of precipitation18%
Record high92° (1963)
Record low47° (1970)
Sat, 0782° / 65°0.06
82 °
Alton, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation23%
Record high93° (2018)
Record low46° (2002)
Sun, 0882° / 64°0.04
82 °
Alton, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.04 in
Chance of precipitation13%
Record high95° (2025)
Record low49° (1978)
Mon, 0980° / 64°0.04
80 °
Alton, Monday, 9 November
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.04 in
Chance of precipitation17%
Record high92° (1975)
Record low42° (1991)
Tue, 1080° / 64°0.03
80 °
Alton, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.03 in
Chance of precipitation15%
Record high91° (1985)
Record low47° (1990)
Wed, 1180° / 63°0.04
80 °
Alton, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.04 in
Chance of precipitation18%
Record high91° (2022)
Record low46° (2011)
Thu, 1279° / 62°0.07
79 °
Alton, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation23%
Record high91° (1969)
Record low38° (2019)
Fri, 1377° / 61°0.07
77 °
Alton, Friday, 13 November
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.07 in
Chance of precipitation28%
Record high95° (1969)
Record low40° (2019)
Sat, 1478° / 62°0.02
78 °
Alton, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.02 in
Chance of precipitation15%
Record high92° (2020)
Record low37° (2018)
Sun, 1578° / 62°0.03
78 °
Alton, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.03 in
Chance of precipitation10%
Record high92° (1989)
Record low38° (2018)
Mon, 1678° / 61°0.06
78 °
Alton, Monday, 16 November
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.06 in
Chance of precipitation15%
Record high91° (2011)
Record low38° (1970)
Tue, 1778° / 62°0.04
78 °
Alton, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.04 in
Chance of precipitation20%
Record high92° (2024)
Record low43° (2014)
Wed, 1879° / 62°0.04
79 °
Alton, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.04 in
Chance of precipitation15%
Record high93° (2024)
Record low44° (2014)
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 Alton, 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 Alton, 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.