Monthly outlook for Mer Rouge, LA: average high 77.7°, average low 55.7°. That is 3.5° above the climate normal for October. Precipitation is expected on 2 days (about 4.5 inches), against a normal of 4 days and 2.3 inches. The warmest day looks like 30 October (87°), the coolest 21 October (47.6°).
77.7°/55.7°
Average high / low
+3.5°
Above normal
2 / 4
Wet days / normal
4.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
81.6°
72.8°
+4.9°
31 October – 9 November
71.3°
68.7°
+1.5°
10 November – 19 November
at normal
65.1°
—
October records over 66 years
94.6°3 October 2019All-time high
33.6°31 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Bonita (12 mi).
Thu, 2282° / 48°0
82 °
Mer Rouge, Thursday, 22 October
Clear. High 82°, low 48°.
Pressure30.21 inHg
Wind4.8 mph NE
Humidity37%
Visibility6.2 mi
Dew point49°
Fri, 2381° / 52°0
81 °
Mer Rouge, Friday, 23 October
Clear. High 81°, low 52°.
Pressure30.21 inHg
Wind4 mph E
Humidity33%
Visibility6.2 mi
Dew point47°
Sat, 2481° / 58°0
81 °
Mer Rouge, Saturday, 24 October
Clear. High 81°, low 58°.
Pressure30.27 inHg
Wind5.5 mph SE
Humidity36%
Visibility6.2 mi
Dew point49°
Sun, 2578° / 54°0
78 °
Mer Rouge, Sunday, 25 October
Clear. High 78°, low 54°.
Pressure30.30 inHg
Wind6.4 mph SE
Humidity38%
Visibility—
Dew point46°
Mon, 2678° / 58°0
78 °
Mer Rouge, Monday, 26 October
Overcast. High 78°, low 58°.
Pressure30.24 inHg
Wind7 mph E
Humidity30%
Visibility—
Dew point40°
Tue, 2777° / 58°0
77 °
Mer Rouge, Tuesday, 27 October
Overcast. High 77°, low 58°.
Pressure30.21 inHg
Wind4.5 mph E
Humidity32%
Visibility—
Dew point42°
Wed, 2884° / 57°0
84 °
Mer Rouge, Wednesday, 28 October
Clear. High 84°, low 57°.
Pressure30.18 inHg
Wind5.7 mph E
Humidity22%
Visibility—
Dew point37°
Thu, 2986° / 61°0
86 °
Mer Rouge, Thursday, 29 October
Overcast. High 86°, low 61°.
Pressure30.12 inHg
Wind6 mph SE
Humidity41%
Visibility—
Dew point54°
Fri, 3087° / 62°0
87 °
Mer Rouge, Friday, 30 October
Overcast. High 87°, low 62°.
Pressure30.06 inHg
Wind7.4 mph SE
Humidity34%
Visibility—
Dew point51°
Sat, 3184° / 61°0
84 °
Mer Rouge, Saturday, 31 October
Overcast. High 84°, low 61°.
Pressure29.97 inHg
Wind14 mph S
Humidity30%
Visibility—
Dew point46°
Sun, 0171° / 69°2.29
71 °
Mer Rouge, Sunday, 1 November
Heavy rain. High 71°, low 69°.
Pressure29.91 inHg
Wind14.2 mph S
Humidity86%
Visibility—
Dew point66°
Mon, 0268° / 55°2.2
68 °
Mer Rouge, Monday, 2 November
Heavy rain. High 68°, low 55°.
Pressure29.88 inHg
Wind14.7 mph W
Humidity89%
Visibility—
Dew point56°
Tue, 0365° / 48°0
65 °
Mer Rouge, Tuesday, 3 November
Partly cloudy. High 65°, low 48°.
Pressure29.80 inHg
Wind14.3 mph NW
Humidity62%
Visibility—
Dew point48°
Wed, 0469° / 51°0
69 °
Mer Rouge, Wednesday, 4 November
Overcast. High 69°, low 51°.
Pressure29.77 inHg
Wind13 mph W
Humidity41%
Visibility—
Dew point40°
Thu, 0570° / 50°0
70 °
Mer Rouge, Thursday, 5 November
Overcast. High 70°, low 50°.
Pressure29.88 inHg
Wind10.7 mph S
Humidity36%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0669° / 52°0.16
69 °
Mer Rouge, Friday, 6 November
Climate normal for this date — 60-year average.
Average high69°
Average low52°
Average precipitation0.16 in
Chance of precipitation28%
Record high81° (2023)
Record low34° (1991)
Sat, 0767° / 52°0.12
67 °
Mer Rouge, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high67°
Average low52°
Average precipitation0.12 in
Chance of precipitation28%
Record high83° (2023)
Record low32° (1993)
Sun, 0867° / 51°0.12
67 °
Mer Rouge, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.12 in
Chance of precipitation23%
Record high83° (2023)
Record low32° (1991)
Mon, 0968° / 52°0.15
68 °
Mer Rouge, Monday, 9 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.15 in
Chance of precipitation28%
Record high81° (2022)
Record low27° (1991)
Tue, 1067° / 51°0.11
67 °
Mer Rouge, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.11 in
Chance of precipitation25%
Record high81° (2002)
Record low28° (1991)
Wed, 1166° / 50°0.07
66 °
Mer Rouge, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high66°
Average low50°
Average precipitation0.07 in
Chance of precipitation23%
Record high81° (1969)
Record low31° (2025)
Thu, 1265° / 48°0.11
65 °
Mer Rouge, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.11 in
Chance of precipitation23%
Record high80° (2003)
Record low27° (2019)
Fri, 1364° / 47°0.05
64 °
Mer Rouge, Friday, 13 November
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.05 in
Chance of precipitation20%
Record high80° (1993)
Record low22° (2019)
Sat, 1465° / 48°0.09
65 °
Mer Rouge, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.09 in
Chance of precipitation22%
Record high82° (1964)
Record low29° (1986)
Sun, 1565° / 49°0.08
65 °
Mer Rouge, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.08 in
Chance of precipitation28%
Record high82° (2011)
Record low27° (2018)
Mon, 1665° / 48°0.19
65 °
Mer Rouge, Monday, 16 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.19 in
Chance of precipitation32%
Record high81° (1964)
Record low31° (1970)
Tue, 1765° / 48°0.13
65 °
Mer Rouge, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.13 in
Chance of precipitation23%
Record high80° (1964)
Record low28° (1997)
Wed, 1865° / 49°0.17
65 °
Mer Rouge, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.17 in
Chance of precipitation32%
Record high80° (2024)
Record low28° (2014)
Thu, 1965° / 50°0.08
65 °
Mer Rouge, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high65°
Average low50°
Average precipitation0.08 in
Chance of precipitation25%
Record high80° (2025)
Record low33° (2014)
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 Mer Rouge, 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 Mer Rouge, 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.