Weather in Mermentau, LA
Mermentau, Friday, 23 October, 00:20
Clear. Feels like 58°. High 84°, low 55°.
Monthly outlook for Mermentau, LA: average high 79°, average low 59.4°. That is 2.6° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 4 days and 2.2 inches. The warmest day looks like 1 November (86.9°), the coolest 6 November (47.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 83° | 75.5° | +4.2° |
| 2 November – 11 November | 72.3° | 72.2° | +0.1° |
| 12 November – 21 November | at normal | 69.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lake Arthur (9 mi).
0
Mermentau, Saturday, 24 October
Clear. High 83°, low 56°.
0Mermentau, Sunday, 25 October
Clear. High 80°, low 57°.
0
Mermentau, Monday, 26 October
Overcast. High 80°, low 60°.
0Mermentau, Tuesday, 27 October
Overcast. High 81°, low 61°.
0
Mermentau, Wednesday, 28 October
Mostly clear. High 83°, low 61°.
0Mermentau, Thursday, 29 October
Overcast. High 81°, low 58°.
0Mermentau, Friday, 30 October
Overcast. High 84°, low 61°.
0.26
Mermentau, Saturday, 31 October
Rain. High 85°, low 68°.
0.03Mermentau, Sunday, 1 November
Light rain. High 87°, low 71°.
0.16Mermentau, Monday, 2 November
Light rain. High 80°, low 68°.
0.41Mermentau, Tuesday, 3 November
Rain. High 71°, low 65°.
0.22Mermentau, Wednesday, 4 November
Rain. High 66°, low 58°.
0Mermentau, Thursday, 5 November
Clear. High 69°, low 51°.
0Mermentau, Friday, 6 November
Clear. High 73°, low 47°.
0Mermentau, Saturday, 7 November
Overcast. High 74°, low 53°.
0.08
Mermentau, Sunday, 8 November
Climate normal for this date — 60-year average.
0.17Mermentau, Monday, 9 November
Climate normal for this date — 60-year average.
0.06Mermentau, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.09Mermentau, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.11Mermentau, Thursday, 12 November
Climate normal for this date — 60-year average.
0.09Mermentau, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Mermentau, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Mermentau, Sunday, 15 November
Climate normal for this date — 60-year average.
0.18Mermentau, Monday, 16 November
Climate normal for this date — 60-year average.
0.08Mermentau, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.23
Mermentau, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.13Mermentau, Thursday, 19 November
Climate normal for this date — 60-year average.
0.14Mermentau, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Mermentau, Saturday, 21 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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