Monthly outlook for Mount Sylvan, TX: average high 81.4°, average low 62°. That is 3.3° above the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 4 days and 2.1 inches. The warmest day looks like 13 October (92°), the coolest 18 October (47°).
81.4°/62°
Average high / low
+3.3°
Above normal
4 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
82.3°
76.7°
+3.1°
22 October – 31 October
80°
72.8°
+4°
1 November – 10 November
at normal
68.4°
—
October records over 66 years
95.7°2 October 2019All-time high
30.7°31 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Lindale (4 mi).
Tue, 1392° / 70°0.03
92 °
Mount Sylvan, Tuesday, 13 October
Light rain. High 92°, low 70°.
Pressure30.00 inHg
Wind8.6 mph S
Humidity61%
Visibility6.2 mi
Dew point72°
Wed, 1492° / 75°0.26
92 °
Mount Sylvan, Wednesday, 14 October
Rain. High 92°, low 75°.
Pressure30.00 inHg
Wind8.9 mph S
Humidity66%
Visibility6.2 mi
Dew point74°
Thu, 1588° / 71°0
88 °
Mount Sylvan, Thursday, 15 October
Clear. High 88°, low 71°.
Pressure30.06 inHg
Wind7.4 mph S
Humidity59%
Visibility6.2 mi
Dew point66°
Fri, 1681° / 67°0
81 °
Mount Sylvan, Friday, 16 October
Overcast. High 81°, low 67°.
Pressure30.21 inHg
Wind13.9 mph N
Humidity53%
Visibility—
Dew point61°
Sat, 1769° / 56°0
69 °
Mount Sylvan, Saturday, 17 October
Partly cloudy. High 69°, low 56°.
Pressure30.33 inHg
Wind11.6 mph NE
Humidity32%
Visibility—
Dew point36°
Sun, 1874° / 47°0
74 °
Mount Sylvan, Sunday, 18 October
Mostly clear. High 74°, low 47°.
Pressure30.33 inHg
Wind7.9 mph E
Humidity27%
Visibility—
Dew point31°
Mon, 1977° / 56°0
77 °
Mount Sylvan, Monday, 19 October
Overcast. High 77°, low 56°.
Pressure30.24 inHg
Wind9.6 mph SE
Humidity63%
Visibility—
Dew point57°
Tue, 2084° / 68°0.05
84 °
Mount Sylvan, Tuesday, 20 October
Light rain. High 84°, low 68°.
Pressure30.00 inHg
Wind12.2 mph SE
Humidity51%
Visibility—
Dew point62°
Wed, 2177° / 67°0.06
77 °
Mount Sylvan, Wednesday, 21 October
Light rain. High 77°, low 67°.
Pressure29.91 inHg
Wind8.2 mph SE
Humidity92%
Visibility—
Dew point69°
Thu, 2276° / 59°0.14
76 °
Mount Sylvan, Thursday, 22 October
Light rain. High 76°, low 59°.
Pressure30.12 inHg
Wind20 mph N
Humidity29%
Visibility—
Dew point38°
Fri, 2379° / 54°0
79 °
Mount Sylvan, Friday, 23 October
Overcast. High 79°, low 54°.
Pressure30.24 inHg
Wind10.3 mph N
Humidity22%
Visibility—
Dew point32°
Sat, 2478° / 56°0
78 °
Mount Sylvan, Saturday, 24 October
Overcast. High 78°, low 56°.
Pressure30.12 inHg
Wind9.4 mph S
Humidity28%
Visibility—
Dew point37°
Sun, 2586° / 60°0
86 °
Mount Sylvan, Sunday, 25 October
Clear. High 86°, low 60°.
Pressure29.80 inHg
Wind20.2 mph SW
Humidity44%
Visibility—
Dew point55°
Mon, 2684° / 62°0
84 °
Mount Sylvan, Monday, 26 October
Clear. High 84°, low 62°.
Pressure29.97 inHg
Wind11 mph N
Humidity32%
Visibility—
Dew point46°
Tue, 2777° / 58°0
77 °
Mount Sylvan, Tuesday, 27 October
Overcast. High 77°, low 58°.
Pressure30.03 inHg
Wind9.4 mph E
Humidity37%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2871° / 55°0.18
71 °
Mount Sylvan, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high71°
Average low55°
Average precipitation0.18 in
Chance of precipitation28%
Record high86° (2024)
Record low38° (2008)
Thu, 2972° / 55°0.17
72 °
Mount Sylvan, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high72°
Average low55°
Average precipitation0.17 in
Chance of precipitation32%
Record high87° (2024)
Record low40° (2012)
Fri, 3072° / 55°0.26
72 °
Mount Sylvan, Friday, 30 October
Climate normal for this date — 60-year average.
Average high72°
Average low55°
Average precipitation0.26 in
Chance of precipitation37%
Record high85° (2003)
Record low36° (1980)
Sat, 3172° / 55°0.21
72 °
Mount Sylvan, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high72°
Average low55°
Average precipitation0.21 in
Chance of precipitation23%
Record high85° (2003)
Record low31° (1993)
Sun, 0170° / 53°0.16
70 °
Mount Sylvan, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.16 in
Chance of precipitation33%
Record high83° (2003)
Record low32° (2019)
Mon, 0269° / 53°0.09
69 °
Mount Sylvan, Monday, 2 November
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.09 in
Chance of precipitation18%
Record high84° (2017)
Record low34° (1991)
Tue, 0368° / 52°0.12
68 °
Mount Sylvan, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.12 in
Chance of precipitation28%
Record high83° (2003)
Record low29° (1991)
Wed, 0468° / 52°0.2
68 °
Mount Sylvan, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.2 in
Chance of precipitation23%
Record high83° (2024)
Record low25° (1991)
Thu, 0569° / 52°0.09
69 °
Mount Sylvan, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high69°
Average low52°
Average precipitation0.09 in
Chance of precipitation18%
Record high82° (2005)
Record low30° (1991)
Fri, 0669° / 52°0.11
69 °
Mount Sylvan, Friday, 6 November
Climate normal for this date — 60-year average.
Average high69°
Average low52°
Average precipitation0.11 in
Chance of precipitation18%
Record high83° (1980)
Record low36° (1992)
Sat, 0768° / 52°0.06
68 °
Mount Sylvan, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.06 in
Chance of precipitation22%
Record high83° (2005)
Record low29° (1993)
Sun, 0867° / 52°0.14
67 °
Mount Sylvan, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high67°
Average low52°
Average precipitation0.14 in
Chance of precipitation27%
Record high84° (1980)
Record low31° (1991)
Mon, 0968° / 53°0.11
68 °
Mount Sylvan, Monday, 9 November
Climate normal for this date — 60-year average.
Average high68°
Average low53°
Average precipitation0.11 in
Chance of precipitation28%
Record high84° (1980)
Record low29° (1991)
Tue, 1067° / 52°0.08
67 °
Mount Sylvan, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high67°
Average low52°
Average precipitation0.08 in
Chance of precipitation18%
Record high82° (1980)
Record low33° (2025)
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 Sylvan, 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 Sylvan, 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.