Weather in Old Jefferson, LA
Old Jefferson, Sunday, 15 November, 01:38
Clear. Feels like 48°. High 65°, low 45°.
Monthly outlook for Old Jefferson, LA: average high 68.7°, average low 49.3°. That is 0.4° above the climate normal for November. Precipitation is expected on 4 days (about 2.4 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 21 November (75.4°), the coolest 25 November (40.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 69.2° | 68.6° | +0.3° |
| 25 November – 4 December | 67.7° | 66.2° | +0.8° |
| 5 December – 14 December | at normal | 64° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Baton Rouge (9 mi).
0.09
Old Jefferson, Monday, 16 November
Light rain. High 63°, low 47°.
0
Old Jefferson, Tuesday, 17 November
Clear. High 68°, low 47°.
0
Old Jefferson, Wednesday, 18 November
Mostly clear. High 71°, low 48°.
0Old Jefferson, Thursday, 19 November
Clear. High 74°, low 53°.
0
Old Jefferson, Friday, 20 November
Overcast. High 72°, low 53°.
0Old Jefferson, Saturday, 21 November
Overcast. High 75°, low 50°.
0Old Jefferson, Sunday, 22 November
Overcast. High 74°, low 59°.
0Old Jefferson, Monday, 23 November
Overcast. High 67°, low 51°.
0Old Jefferson, Tuesday, 24 November
Overcast. High 62°, low 41°.
0Old Jefferson, Wednesday, 25 November
Overcast. High 64°, low 41°.
1.02Old Jefferson, Thursday, 26 November
Heavy rain. High 71°, low 51°.
1.21Old Jefferson, Friday, 27 November
Heavy rain. High 66°, low 56°.
0Old Jefferson, Saturday, 28 November
Overcast. High 67°, low 49°.
0Old Jefferson, Sunday, 29 November
Clear. High 68°, low 46°.
0Old Jefferson, Monday, 30 November
Clear. High 71°, low 52°.
0.11
Old Jefferson, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.09Old Jefferson, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.18Old Jefferson, Thursday, 3 December
Climate normal for this date — 60-year average.
0.15Old Jefferson, Friday, 4 December
Climate normal for this date — 60-year average.
0.08Old Jefferson, Saturday, 5 December
Climate normal for this date — 60-year average.
0.17
Old Jefferson, Sunday, 6 December
Climate normal for this date — 60-year average.
0.12Old Jefferson, Monday, 7 December
Climate normal for this date — 60-year average.
0.19Old Jefferson, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.14Old Jefferson, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.2Old Jefferson, Thursday, 10 December
Climate normal for this date — 60-year average.
0.12Old Jefferson, Friday, 11 December
Climate normal for this date — 60-year average.
0.13Old Jefferson, Saturday, 12 December
Climate normal for this date — 60-year average.
0.2Old Jefferson, Sunday, 13 December
Climate normal for this date — 60-year average.
0.11Old Jefferson, Monday, 14 December
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 Old Jefferson, 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 Old Jefferson, 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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