Monthly outlook for Sinton, TX: average high 80°, average low 67.4°. That is 0.3° below the climate normal for October. Precipitation is expected on 9 days (about 3.6 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 14 October (93.2°), the coolest 18 October (55.8°).
80°/67.4°
Average high / low
−0.3°
Below normal
9 / 4
Wet days / normal
3.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
82.7°
81.4°
+0.7°
24 October – 2 November
75.6°
78.7°
-1.8°
3 November – 12 November
at normal
75.9°
—
October records over 66 years
95.5°28 October 2025All-time high
37.4°31 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Loma Linda (2 mi).
Thu, 1589° / 79°0
89 °
Sinton, Thursday, 15 October
Mostly clear. High 89°, low 79°.
Pressure29.97 inHg
Wind12 mph SE
Humidity48%
Visibility6.2 mi
Dew point67°
Fri, 1681° / 65°0
81 °
Sinton, Friday, 16 October
Overcast. High 81°, low 65°.
Pressure30.18 inHg
Wind20.8 mph N
Humidity45%
Visibility6.2 mi
Dew point57°
Sat, 1772° / 57°0
72 °
Sinton, Saturday, 17 October
Mostly clear. High 72°, low 57°.
Pressure30.45 inHg
Wind14.1 mph N
Humidity34%
Visibility6.2 mi
Dew point37°
Sun, 1877° / 56°0
77 °
Sinton, Sunday, 18 October
Clear. High 77°, low 56°.
Pressure30.36 inHg
Wind5.6 mph NE
Humidity30%
Visibility6.2 mi
Dew point37°
Mon, 1980° / 57°0
80 °
Sinton, Monday, 19 October
Mostly clear. High 80°, low 57°.
Pressure30.27 inHg
Wind8.4 mph NE
Humidity38%
Visibility—
Dew point47°
Tue, 2081° / 62°1.28
81 °
Sinton, Tuesday, 20 October
Rain. High 81°, low 62°.
Pressure30.06 inHg
Wind16.6 mph E
Humidity62%
Visibility—
Dew point64°
Wed, 2183° / 76°0.65
83 °
Sinton, Wednesday, 21 October
Rain. High 83°, low 76°.
Pressure30.03 inHg
Wind16.6 mph E
Humidity69%
Visibility—
Dew point71°
Thu, 2285° / 75°0.06
85 °
Sinton, Thursday, 22 October
Light rain. High 85°, low 75°.
Pressure30.06 inHg
Wind14.4 mph E
Humidity63%
Visibility—
Dew point69°
Fri, 2386° / 76°0.04
86 °
Sinton, Friday, 23 October
Light rain. High 86°, low 76°.
Pressure29.97 inHg
Wind16.4 mph SE
Humidity61%
Visibility—
Dew point69°
Sat, 2486° / 76°0.04
86 °
Sinton, Saturday, 24 October
Light rain. High 86°, low 76°.
Pressure30.00 inHg
Wind12.5 mph SE
Humidity60%
Visibility—
Dew point69°
Sun, 2580° / 67°0.16
80 °
Sinton, Sunday, 25 October
Light rain. High 80°, low 67°.
Pressure30.12 inHg
Wind17.4 mph N
Humidity66%
Visibility—
Dew point65°
Mon, 2677° / 67°0
77 °
Sinton, Monday, 26 October
Overcast. High 77°, low 67°.
Pressure30.12 inHg
Wind16.7 mph E
Humidity59%
Visibility—
Dew point58°
Tue, 2777° / 63°0.46
77 °
Sinton, Tuesday, 27 October
Rain. High 77°, low 63°.
Pressure29.97 inHg
Wind12.5 mph NE
Humidity71%
Visibility—
Dew point66°
Wed, 2865° / 58°0.39
65 °
Sinton, Wednesday, 28 October
Rain. High 65°, low 58°.
Pressure29.97 inHg
Wind14.8 mph N
Humidity79%
Visibility—
Dew point56°
Thu, 2968° / 64°0.49
68 °
Sinton, Thursday, 29 October
Rain. High 68°, low 64°.
Pressure29.97 inHg
Wind8.7 mph N
Humidity97%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3079° / 63°0.13
79 °
Sinton, Friday, 30 October
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.13 in
Chance of precipitation28%
Record high88° (2024)
Record low43° (1993)
Sat, 3178° / 64°0.13
78 °
Sinton, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.13 in
Chance of precipitation32%
Record high86° (1997)
Record low37° (1993)
Sun, 0178° / 63°0.11
78 °
Sinton, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.11 in
Chance of precipitation33%
Record high88° (2010)
Record low43° (2019)
Mon, 0276° / 61°0.13
76 °
Sinton, Monday, 2 November
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.13 in
Chance of precipitation23%
Record high87° (2017)
Record low46° (1966)
Tue, 0376° / 61°0.09
76 °
Sinton, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.09 in
Chance of precipitation28%
Record high88° (1992)
Record low43° (1991)
Wed, 0476° / 61°0.09
76 °
Sinton, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.09 in
Chance of precipitation25%
Record high93° (1988)
Record low40° (1991)
Thu, 0577° / 61°0.04
77 °
Sinton, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.04 in
Chance of precipitation22%
Record high89° (2017)
Record low42° (1970)
Fri, 0677° / 62°0.09
77 °
Sinton, Friday, 6 November
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.09 in
Chance of precipitation23%
Record high89° (1963)
Record low45° (1970)
Sat, 0776° / 62°0.06
76 °
Sinton, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.06 in
Chance of precipitation18%
Record high89° (2025)
Record low42° (1993)
Sun, 0876° / 62°0.06
76 °
Sinton, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high76°
Average low62°
Average precipitation0.06 in
Chance of precipitation27%
Record high90° (2025)
Record low46° (1991)
Mon, 0976° / 63°0.04
76 °
Sinton, Monday, 9 November
Climate normal for this date — 60-year average.
Average high76°
Average low63°
Average precipitation0.04 in
Chance of precipitation17%
Record high87° (1988)
Record low40° (1991)
Tue, 1075° / 61°0.05
75 °
Sinton, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high75°
Average low61°
Average precipitation0.05 in
Chance of precipitation13%
Record high88° (2024)
Record low43° (1977)
Wed, 1175° / 60°0.06
75 °
Sinton, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.06 in
Chance of precipitation27%
Record high87° (2024)
Record low39° (2025)
Thu, 1274° / 60°0.09
74 °
Sinton, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high74°
Average low60°
Average precipitation0.09 in
Chance of precipitation28%
Record high86° (1969)
Record low34° (2019)
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 Sinton, 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 Sinton, 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.