Weather in Mermentau, LA
Mermentau, Sunday, 18 October, 03:12
Clear. Feels like 50°. High 74°, low 51°.
Monthly outlook for Mermentau, LA: average high 83.8°, average low 61.7°. That is 4.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 4 days and 2.2 inches. The warmest day looks like 1 November (91.4°), the coolest 18 October (51°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 81.2° | 76.9° | +2.4° |
| 28 October – 6 November | 88.2° | 73.7° | +8.1° |
| 7 November – 16 November | at normal | 70.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lake Arthur (9 mi).
0
Mermentau, Monday, 19 October
Mostly clear. High 78°, low 54°.
0
Mermentau, Tuesday, 20 October
Partly cloudy. High 80°, low 57°.
0
Mermentau, Wednesday, 21 October
Clear. High 82°, low 59°.
0Mermentau, Thursday, 22 October
Clear. High 84°, low 56°.
0Mermentau, Friday, 23 October
Mostly clear. High 86°, low 58°.
0Mermentau, Saturday, 24 October
Clear. High 84°, low 62°.
0
Mermentau, Sunday, 25 October
Overcast. High 82°, low 56°.
0Mermentau, Monday, 26 October
Overcast. High 81°, low 60°.
0Mermentau, Tuesday, 27 October
Overcast. High 81°, low 56°.
0Mermentau, Wednesday, 28 October
Partly cloudy. High 85°, low 63°.
0.08
Mermentau, Thursday, 29 October
Light rain. High 85°, low 67°.
0Mermentau, Friday, 30 October
Mostly clear. High 88°, low 71°.
0Mermentau, Saturday, 31 October
Clear. High 89°, low 71°.
0Mermentau, Sunday, 1 November
Clear. High 91°, low 73°.
0Mermentau, Monday, 2 November
Partly cloudy. High 90°, low 72°.
0.07Mermentau, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Mermentau, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.09Mermentau, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Mermentau, Friday, 6 November
Climate normal for this date — 60-year average.
0.1Mermentau, Saturday, 7 November
Climate normal for this date — 60-year average.
0.08Mermentau, 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.
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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