Monthly outlook for Port Lavaca, TX: average high 69.4°, average low 58.1°. That is 1° below the climate normal for November. Precipitation is expected on 5 days (about 1.9 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 22 November (76.6°), the coolest 25 November (41.3°).
69.4°/58.1°
Average high / low
−1°
Below normal
5 / 5
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 November – 20 November
72.5°
71.7°
+0.4°
21 November – 30 November
64.2°
69.4°
-2.9°
1 December – 10 December
at normal
67.4°
—
November records over 66 years
88.7°4 November 1988All-time high
33.8°29 November 1976All-time low
Climate normals and records are computed from the nearest reference point — Seadrift (15 mi).
Thu, 1273° / 59°0
73 °
Port Lavaca, Thursday, 12 November
Clear. High 73°, low 59°.
Pressure30.06 inHg
Wind10.8 mph NE
Humidity49%
Visibility6.2 mi
Dew point54°
Fri, 1376° / 54°0
76 °
Port Lavaca, Friday, 13 November
Clear. High 76°, low 54°.
Pressure30.03 inHg
Wind0.3 mph NE
Humidity47%
Visibility6.2 mi
Dew point53°
Sat, 1472° / 63°0.09
72 °
Port Lavaca, Saturday, 14 November
Light rain. High 72°, low 63°.
Pressure30.03 inHg
Wind12.9 mph SE
Humidity61%
Visibility—
Dew point58°
Sun, 1574° / 67°0.97
74 °
Port Lavaca, Sunday, 15 November
Rain. High 74°, low 67°.
Pressure30.03 inHg
Wind11.1 mph S
Humidity77%
Visibility6.2 mi
Dew point66°
Mon, 1667° / 63°0.11
67 °
Port Lavaca, Monday, 16 November
Light rain. High 67°, low 63°.
Pressure30.18 inHg
Wind15.9 mph N
Humidity73%
Visibility—
Dew point58°
Tue, 1769° / 58°0.01
69 °
Port Lavaca, Tuesday, 17 November
Light rain. High 69°, low 58°.
Pressure30.27 inHg
Wind12.9 mph NE
Humidity45%
Visibility—
Dew point44°
Wed, 1871° / 57°0
71 °
Port Lavaca, Wednesday, 18 November
Partly cloudy. High 71°, low 57°.
Pressure30.24 inHg
Wind11.1 mph SE
Humidity51%
Visibility—
Dew point51°
Thu, 1974° / 63°0
74 °
Port Lavaca, Thursday, 19 November
Overcast. High 74°, low 63°.
Pressure30.12 inHg
Wind13.2 mph SE
Humidity57%
Visibility—
Dew point56°
Fri, 2076° / 68°0
76 °
Port Lavaca, Friday, 20 November
Overcast. High 76°, low 68°.
Pressure30.06 inHg
Wind14.8 mph SE
Humidity59%
Visibility—
Dew point60°
Sat, 2176° / 69°0
76 °
Port Lavaca, Saturday, 21 November
Overcast. High 76°, low 69°.
Pressure30.00 inHg
Wind14.3 mph SE
Humidity59%
Visibility—
Dew point59°
Sun, 2277° / 67°0.62
77 °
Port Lavaca, Sunday, 22 November
Rain. High 77°, low 67°.
Pressure29.83 inHg
Wind17.2 mph N
Humidity72%
Visibility—
Dew point65°
Mon, 2358° / 48°0.05
58 °
Port Lavaca, Monday, 23 November
Light rain. High 58°, low 48°.
Pressure30.03 inHg
Wind22.3 mph N
Humidity56%
Visibility—
Dew point35°
Tue, 2457° / 47°0
57 °
Port Lavaca, Tuesday, 24 November
Partly cloudy. High 57°, low 47°.
Pressure30.27 inHg
Wind15.8 mph N
Humidity46%
Visibility—
Dew point34°
Wed, 2558° / 41°0
58 °
Port Lavaca, Wednesday, 25 November
Clear. High 58°, low 41°.
Pressure30.42 inHg
Wind10.7 mph NE
Humidity40%
Visibility—
Dew point29°
Thu, 2660° / 44°0
60 °
Port Lavaca, Thursday, 26 November
Clear. High 60°, low 44°.
Pressure30.39 inHg
Wind9.6 mph NE
Humidity31%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2769° / 57°0.13
69 °
Port Lavaca, Friday, 27 November
Climate normal for this date — 60-year average.
Average high69°
Average low57°
Average precipitation0.13 in
Chance of precipitation33%
Record high82° (1994)
Record low35° (1993)
Sat, 2868° / 55°0.1
68 °
Port Lavaca, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high68°
Average low55°
Average precipitation0.1 in
Chance of precipitation27%
Record high82° (2016)
Record low34° (1976)
Sun, 2968° / 55°0.04
68 °
Port Lavaca, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high68°
Average low55°
Average precipitation0.04 in
Chance of precipitation23%
Record high81° (2016)
Record low34° (1976)
Mon, 3068° / 55°0.07
68 °
Port Lavaca, Monday, 30 November
Climate normal for this date — 60-year average.
Average high68°
Average low55°
Average precipitation0.07 in
Chance of precipitation30%
Record high78° (2019)
Record low34° (1976)
Tue, 0167° / 54°0.06
67 °
Port Lavaca, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high67°
Average low54°
Average precipitation0.06 in
Chance of precipitation22%
Record high78° (2012)
Record low37° (1974)
Wed, 0268° / 56°0.06
68 °
Port Lavaca, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high68°
Average low56°
Average precipitation0.06 in
Chance of precipitation22%
Record high78° (2012)
Record low37° (1974)
Thu, 0369° / 57°0.06
69 °
Port Lavaca, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high69°
Average low57°
Average precipitation0.06 in
Chance of precipitation25%
Record high79° (1964)
Record low40° (1976)
Fri, 0468° / 55°0.08
68 °
Port Lavaca, Friday, 4 December
Climate normal for this date — 60-year average.
Average high68°
Average low55°
Average precipitation0.08 in
Chance of precipitation35%
Record high79° (2012)
Record low36° (2009)
Sat, 0567° / 55°0.11
67 °
Port Lavaca, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high67°
Average low55°
Average precipitation0.11 in
Chance of precipitation22%
Record high80° (1977)
Record low33° (2009)
Sun, 0667° / 55°0.09
67 °
Port Lavaca, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high67°
Average low55°
Average precipitation0.09 in
Chance of precipitation30%
Record high78° (1998)
Record low38° (1964)
Mon, 0767° / 55°0.11
67 °
Port Lavaca, Monday, 7 December
Climate normal for this date — 60-year average.
Average high67°
Average low55°
Average precipitation0.11 in
Chance of precipitation23%
Record high78° (1994)
Record low35° (2011)
Tue, 0867° / 55°0.07
67 °
Port Lavaca, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high67°
Average low55°
Average precipitation0.07 in
Chance of precipitation30%
Record high79° (2012)
Record low35° (2017)
Wed, 0968° / 55°0.08
68 °
Port Lavaca, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high68°
Average low55°
Average precipitation0.08 in
Chance of precipitation28%
Record high80° (2008)
Record low35° (1978)
Thu, 1066° / 53°0.07
66 °
Port Lavaca, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high66°
Average low53°
Average precipitation0.07 in
Chance of precipitation30%
Record high79° (2021)
Record low33° (1978)
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 Port Lavaca, 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 Port Lavaca, 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.