As of 11:50 CST

Weather in Mermentau, LA

73°Current weather

Mermentau, Tuesday, 10 November, 11:50

Clear. Feels like 72°. High 75°, low 56°.

Pressure30.18 inHg
Wind0 mph N
Humidity40%
Visibility6.2 mi
Dew point48°

Monthly outlook for Mermentau, LA: average high 70.9°, average low 53.2°. That is 1° above the climate normal for November. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 21 November (77.5°), the coolest 14 November (46.2°).

70.9°/53.2°
Average high / low
+1°
Above normal
3 / 4
Wet days / normal
1.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
10 November – 19 November70.4°69.8°+0.3°
20 November – 29 November71.8°67.5°+2.3°
30 November – 9 Decemberat normal65°—

November records over 66 years

85.5°7 November 2024All-time high
26.2°13 November 2019All-time low

Climate normals and records are computed from the nearest reference point — Lake Arthur (9 mi).

Wed, 1177° / 58°0.13Rain
77 °Rain

Mermentau, Wednesday, 11 November

Rain. High 77°, low 58°.

Pressure30.09 inHg
Wind3.8 mph W
Humidity54%
Visibility6.2 mi
Dew point56°
Thu, 1272° / 56°0Clear
72 °Clear

Mermentau, Thursday, 12 November

Clear. High 72°, low 56°.

Pressure30.00 inHg
Wind6.8 mph N
Humidity46%
Visibility6.2 mi
Dew point49°
Fri, 1369° / 52°0Clear
69 °Clear

Mermentau, Friday, 13 November

Clear. High 69°, low 52°.

Pressure30.06 inHg
Wind3.4 mph N
Humidity51%
Visibility6.2 mi
Dew point49°
Sat, 1464° / 46°0Clear
64 °Clear

Mermentau, Saturday, 14 November

Clear. High 64°, low 46°.

Pressure30.12 inHg
Wind7.9 mph E
Humidity41%
Visibility—
Dew point35°
Sun, 1571° / 50°0Overcast
71 °Overcast

Mermentau, Sunday, 15 November

Overcast. High 71°, low 50°.

Pressure30.09 inHg
Wind14.5 mph SE
Humidity54%
Visibility—
Dew point50°
Mon, 1662° / 52°0.04Light rain
62 °Light rain

Mermentau, Monday, 16 November

Light rain. High 62°, low 52°.

Pressure30.21 inHg
Wind14.9 mph NE
Humidity56%
Visibility—
Dew point44°
Tue, 1770° / 46°0Clear
70 °Clear

Mermentau, Tuesday, 17 November

Clear. High 70°, low 46°.

Pressure30.24 inHg
Wind10.7 mph NE
Humidity53%
Visibility—
Dew point46°
Wed, 1871° / 51°0Clear
71 °Clear

Mermentau, Wednesday, 18 November

Clear. High 71°, low 51°.

Pressure30.21 inHg
Wind9 mph E
Humidity43%
Visibility—
Dew point43°
Thu, 1974° / 52°0Partly cloudy
74 °Partly cloudy

Mermentau, Thursday, 19 November

Partly cloudy. High 74°, low 52°.

Pressure30.18 inHg
Wind11.3 mph SE
Humidity47%
Visibility—
Dew point48°
Fri, 2076° / 56°0Overcast
76 °Overcast

Mermentau, Friday, 20 November

Overcast. High 76°, low 56°.

Pressure30.12 inHg
Wind13.4 mph SE
Humidity58%
Visibility—
Dew point57°
Sat, 2177° / 65°0.48Rain
77 °Rain

Mermentau, Saturday, 21 November

Rain. High 77°, low 65°.

Pressure29.94 inHg
Wind19.3 mph S
Humidity70%
Visibility—
Dew point66°
Sun, 2275° / 60°0.88Rain
75 °Rain

Mermentau, Sunday, 22 November

Rain. High 75°, low 60°.

Pressure29.88 inHg
Wind11.4 mph N
Humidity54%
Visibility—
Dew point53°
Mon, 2370° / 51°0Clear
70 °Clear

Mermentau, Monday, 23 November

Clear. High 70°, low 51°.

Pressure29.97 inHg
Wind8.2 mph N
Humidity34%
Visibility—
Dew point37°
Tue, 2469° / 53°0Mostly clear
69 °Mostly clear

Mermentau, Tuesday, 24 November

Mostly clear. High 69°, low 53°.

Pressure30.15 inHg
Wind9 mph NE
Humidity38%
Visibility—
Dew point40°
Wed, 2563° / 48°0Overcast
63 °Overcast

Mermentau, Wednesday, 25 November

Overcast. High 63°, low 48°.

Pressure30.24 inHg
Wind10.5 mph NE
Humidity39%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2668° / 54°0.14Climate normal
68 °Climate normal

Mermentau, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high68°
Average low54°
Average precipitation0.14 in
Chance of precipitation33%
Record high79° (2001)
Record low39° (1974)
Fri, 2767° / 53°0.26Climate normal
67 °Climate normal

Mermentau, Friday, 27 November

Climate normal for this date — 60-year average.

Average high67°
Average low53°
Average precipitation0.26 in
Chance of precipitation38%
Record high80° (1994)
Record low34° (1975)
Sat, 2865° / 50°0.18Climate normal
65 °Climate normal

Mermentau, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high65°
Average low50°
Average precipitation0.18 in
Chance of precipitation33%
Record high78° (1960)
Record low32° (2013)
Sun, 2966° / 50°0.11Climate normal
66 °Climate normal

Mermentau, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high66°
Average low50°
Average precipitation0.11 in
Chance of precipitation28%
Record high79° (2016)
Record low30° (2013)
Mon, 3066° / 50°0.16Climate normal
66 °Climate normal

Mermentau, Monday, 30 November

Climate normal for this date — 60-year average.

Average high66°
Average low50°
Average precipitation0.16 in
Chance of precipitation38%
Record high79° (1991)
Record low27° (1976)
Tue, 0165° / 48°0.12Climate normal
65 °Climate normal

Mermentau, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high65°
Average low48°
Average precipitation0.12 in
Chance of precipitation22%
Record high78° (1982)
Record low31° (1976)
Wed, 0266° / 49°0.1Climate normal
66 °Climate normal

Mermentau, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high66°
Average low49°
Average precipitation0.1 in
Chance of precipitation22%
Record high79° (1982)
Record low32° (1960)
Thu, 0366° / 51°0.17Climate normal
66 °Climate normal

Mermentau, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high66°
Average low51°
Average precipitation0.17 in
Chance of precipitation23%
Record high78° (1978)
Record low35° (2025)
Fri, 0465° / 50°0.16Climate normal
65 °Climate normal

Mermentau, Friday, 4 December

Climate normal for this date — 60-year average.

Average high65°
Average low50°
Average precipitation0.16 in
Chance of precipitation25%
Record high78° (2013)
Record low33° (1974)
Sat, 0565° / 49°0.12Climate normal
65 °Climate normal

Mermentau, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high65°
Average low49°
Average precipitation0.12 in
Chance of precipitation32%
Record high79° (1998)
Record low29° (2006)
Sun, 0665° / 49°0.18Climate normal
65 °Climate normal

Mermentau, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high65°
Average low49°
Average precipitation0.18 in
Chance of precipitation38%
Record high78° (2022)
Record low34° (2024)
Mon, 0763° / 49°0.12Climate normal
63 °Climate normal

Mermentau, Monday, 7 December

Climate normal for this date — 60-year average.

Average high63°
Average low49°
Average precipitation0.12 in
Chance of precipitation23%
Record high79° (1998)
Record low29° (1984)
Tue, 0865° / 48°0.14Climate normal
65 °Climate normal

Mermentau, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high65°
Average low48°
Average precipitation0.14 in
Chance of precipitation30%
Record high79° (2022)
Record low29° (2006)
Wed, 0965° / 50°0.17Climate normal
65 °Climate normal

Mermentau, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high65°
Average low50°
Average precipitation0.17 in
Chance of precipitation35%
Record high78° (2007)
Record low28° (2017)

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 Mermentau, LA 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 Mermentau, LA 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.