Monthly outlook for San Marcos, TX: average high 72.9°, average low 56.6°. That is 1.4° above the climate normal for November. Precipitation is expected on 6 days (about 2.1 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 3 November (80.4°), the coolest 15 November (48.5°).
72.9°/56.6°
Average high / low
+1.4°
Above normal
6 / 4
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
3 November – 12 November
73.1°
71.4°
+0.9°
13 November – 22 November
72.6°
68.5°
+2.3°
23 November – 2 December
at normal
65.5°
—
November records over 66 years
88.3°7 November 2025All-time high
27°30 November 1976All-time low
Climate normals and records are computed from the nearest reference point — Wimberley (12 mi).
Wed, 0477° / 59°0
77 °
San Marcos, Wednesday, 4 November
Clear. High 77°, low 59°.
Pressure30.00 inHg
Wind2.9 mph E
Humidity45%
Visibility6.2 mi
Dew point51°
Thu, 0578° / 55°0
78 °
San Marcos, Thursday, 5 November
Clear. High 78°, low 55°.
Pressure29.91 inHg
Wind6.1 mph S
Humidity58%
Visibility6.2 mi
Dew point59°
Fri, 0672° / 56°0
72 °
San Marcos, Friday, 6 November
Clear. High 72°, low 56°.
Pressure30.09 inHg
Wind9.5 mph N
Humidity37%
Visibility6.2 mi
Dew point43°
Sat, 0766° / 53°0.13
66 °
San Marcos, Saturday, 7 November
Rain. High 66°, low 53°.
Pressure30.18 inHg
Wind8.9 mph NE
Humidity55%
Visibility6.2 mi
Dew point49°
Sun, 0868° / 52°0.09
68 °
San Marcos, Sunday, 8 November
Light rain. High 68°, low 52°.
Pressure30.24 inHg
Wind8.1 mph N
Humidity55%
Visibility—
Dew point47°
Mon, 0976° / 55°0
76 °
San Marcos, Monday, 9 November
Overcast. High 76°, low 55°.
Pressure30.18 inHg
Wind8.4 mph S
Humidity31%
Visibility—
Dew point39°
Tue, 1076° / 57°0
76 °
San Marcos, Tuesday, 10 November
Overcast. High 76°, low 57°.
Pressure30.15 inHg
Wind10.5 mph S
Humidity48%
Visibility—
Dew point51°
Wed, 1171° / 65°0.11
71 °
San Marcos, Wednesday, 11 November
Light rain. High 71°, low 65°.
Pressure30.09 inHg
Wind8.6 mph S
Humidity74%
Visibility—
Dew point62°
Thu, 1267° / 59°0.65
67 °
San Marcos, Thursday, 12 November
Rain. High 67°, low 59°.
Pressure30.06 inHg
Wind16.8 mph N
Humidity87%
Visibility—
Dew point59°
Fri, 1366° / 55°0
66 °
San Marcos, Friday, 13 November
Overcast. High 66°, low 55°.
Pressure30.09 inHg
Wind14.8 mph NE
Humidity43%
Visibility—
Dew point40°
Sat, 1467° / 53°0
67 °
San Marcos, Saturday, 14 November
Partly cloudy. High 67°, low 53°.
Pressure30.15 inHg
Wind11.1 mph NE
Humidity37%
Visibility—
Dew point36°
Sun, 1570° / 48°0
70 °
San Marcos, Sunday, 15 November
Clear. High 70°, low 48°.
Pressure30.03 inHg
Wind8.9 mph S
Humidity37%
Visibility—
Dew point37°
Mon, 1677° / 54°0
77 °
San Marcos, Monday, 16 November
Clear. High 77°, low 54°.
Pressure29.88 inHg
Wind12.7 mph SW
Humidity47%
Visibility—
Dew point51°
Tue, 1779° / 54°0.02
79 °
San Marcos, Tuesday, 17 November
Light rain. High 79°, low 54°.
Pressure29.85 inHg
Wind14.1 mph SE
Humidity41%
Visibility—
Dew point46°
Wed, 1877° / 65°0.26
77 °
San Marcos, Wednesday, 18 November
Light rain. High 77°, low 65°.
Pressure29.68 inHg
Wind17.3 mph SW
Humidity83%
Visibility—
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1969° / 53°0.08
69 °
San Marcos, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.08 in
Chance of precipitation22%
Record high83° (2025)
Record low36° (1980)
Fri, 2068° / 52°0.09
68 °
San Marcos, Friday, 20 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.09 in
Chance of precipitation18%
Record high83° (2025)
Record low34° (1969)
Sat, 2167° / 52°0.07
67 °
San Marcos, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high67°
Average low52°
Average precipitation0.07 in
Chance of precipitation27%
Record high82° (2007)
Record low38° (2000)
Sun, 2268° / 52°0.13
68 °
San Marcos, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.13 in
Chance of precipitation23%
Record high83° (1970)
Record low34° (1964)
Mon, 2368° / 51°0.07
68 °
San Marcos, Monday, 23 November
Climate normal for this date — 60-year average.
Average high68°
Average low51°
Average precipitation0.07 in
Chance of precipitation27%
Record high81° (2005)
Record low36° (1975)
Tue, 2466° / 51°0.17
66 °
San Marcos, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high66°
Average low51°
Average precipitation0.17 in
Chance of precipitation40%
Record high84° (1965)
Record low33° (1970)
Wed, 2567° / 49°0.1
67 °
San Marcos, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high67°
Average low49°
Average precipitation0.1 in
Chance of precipitation32%
Record high83° (2019)
Record low35° (2013)
Thu, 2667° / 51°0.11
67 °
San Marcos, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.11 in
Chance of precipitation32%
Record high84° (1965)
Record low32° (1993)
Fri, 2765° / 50°0.11
65 °
San Marcos, Friday, 27 November
Climate normal for this date — 60-year average.
Average high65°
Average low50°
Average precipitation0.11 in
Chance of precipitation20%
Record high83° (2005)
Record low29° (1993)
Sat, 2864° / 47°0.09
64 °
San Marcos, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.09 in
Chance of precipitation15%
Record high81° (2006)
Record low33° (2001)
Sun, 2965° / 48°0.06
65 °
San Marcos, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.06 in
Chance of precipitation23%
Record high80° (1975)
Record low27° (1976)
Mon, 3065° / 47°0.08
65 °
San Marcos, Monday, 30 November
Climate normal for this date — 60-year average.
Average high65°
Average low47°
Average precipitation0.08 in
Chance of precipitation25%
Record high82° (2019)
Record low27° (1976)
Tue, 0164° / 47°0.02
64 °
San Marcos, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.02 in
Chance of precipitation15%
Record high79° (1970)
Record low32° (1976)
Wed, 0265° / 48°0.1
65 °
San Marcos, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.1 in
Chance of precipitation25%
Record high78° (1982)
Record low31° (1985)
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 San Marcos, 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 San Marcos, 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.