Weather in Jefferson Island, LA
Jefferson Island, Sunday, 9 August, 10:52
Mostly clear. Feels like 102°. High 96°, low 75°.
Monthly outlook for Jefferson Island, LA: average high 94.5°, average low 76.3°. That is 3.1° above the climate normal for August. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 10 days and 2.5 inches. The warmest day looks like 10 August (97.9°), the coolest 10 August (71.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 93.6° | 89° | +2.6° |
| 19 August – 28 August | 96° | 88.8° | +4° |
| 29 August – 7 September | at normal | 87.2° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Loreauville (15 mi).
0.11
Jefferson Island, Monday, 10 August
Rain. High 98°, low 71°.
0.02Jefferson Island, Tuesday, 11 August
Light rain. High 92°, low 74°.
0.02Jefferson Island, Wednesday, 12 August
Light rain. High 90°, low 78°.
0
Jefferson Island, Thursday, 13 August
Clear. High 93°, low 78°.
0Jefferson Island, Friday, 14 August
Clear. High 92°, low 76°.
0Jefferson Island, Saturday, 15 August
Clear. High 93°, low 76°.
0Jefferson Island, Sunday, 16 August
Mostly clear. High 94°, low 76°.
0
Jefferson Island, Monday, 17 August
Partly cloudy. High 94°, low 77°.
0Jefferson Island, Tuesday, 18 August
Clear. High 95°, low 77°.
0Jefferson Island, Wednesday, 19 August
Clear. High 96°, low 77°.
0Jefferson Island, Thursday, 20 August
Clear. High 98°, low 76°.
0Jefferson Island, Friday, 21 August
Clear. High 95°, low 78°.
0Jefferson Island, Saturday, 22 August
Clear. High 95°, low 78°.
0.13Jefferson Island, Sunday, 23 August
Rain. High 96°, low 78°.
0.23Jefferson Island, Monday, 24 August
Rain. High 96°, low 75°.
0.14Jefferson Island, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.24Jefferson Island, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.16Jefferson Island, Thursday, 27 August
Climate normal for this date — 60-year average.
0.22Jefferson Island, Friday, 28 August
Climate normal for this date — 60-year average.
0.25Jefferson Island, Saturday, 29 August
Climate normal for this date — 60-year average.
0.17Jefferson Island, Sunday, 30 August
Climate normal for this date — 60-year average.
0.11Jefferson Island, Monday, 31 August
Climate normal for this date — 60-year average.
0.17Jefferson Island, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.18Jefferson Island, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.18Jefferson Island, Thursday, 3 September
Climate normal for this date — 60-year average.
0.21Jefferson Island, Friday, 4 September
Climate normal for this date — 60-year average.
0.23Jefferson Island, Saturday, 5 September
Climate normal for this date — 60-year average.
0.26Jefferson Island, Sunday, 6 September
Climate normal for this date — 60-year average.
0.13Jefferson Island, Monday, 7 September
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 Jefferson Island, 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 Jefferson Island, 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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