Weather in Gretna, LA
Gretna, Tuesday, 13 October, 07:00
Overcast. Feels like 69°. High 88°, low 66°.
Monthly outlook for Gretna, LA: average high 82.5°, average low 69.6°. That is 3.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 3 days and 1.5 inches. The warmest day looks like 13 October (88.3°), the coolest 17 October (60.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 80.5° | 77.2° | +1.8° |
| 23 October – 1 November | 85.7° | 74.6° | +6.1° |
| 2 November – 11 November | at normal | 71.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Terrytown (2 mi).
0
Gretna, Wednesday, 14 October
Clear. High 88°, low 62°.
0
Gretna, Thursday, 15 October
Partly cloudy. High 85°, low 72°.
0Gretna, Friday, 16 October
Overcast. High 85°, low 73°.
0Gretna, Saturday, 17 October
Overcast. High 71°, low 61°.
0Gretna, Sunday, 18 October
Overcast. High 74°, low 61°.
0.02
Gretna, Monday, 19 October
Light rain. High 78°, low 70°.
0.37Gretna, Tuesday, 20 October
Light rain. High 76°, low 75°.
0.43Gretna, Wednesday, 21 October
Rain. High 77°, low 74°.
0.02Gretna, Thursday, 22 October
Light rain. High 82°, low 74°.
0.01Gretna, Friday, 23 October
Light rain. High 86°, low 73°.
0Gretna, Saturday, 24 October
Overcast. High 87°, low 73°.
0.06Gretna, Sunday, 25 October
Light rain. High 88°, low 72°.
0Gretna, Monday, 26 October
Clear. High 85°, low 70°.
0Gretna, Tuesday, 27 October
Clear. High 84°, low 69°.
0Gretna, Wednesday, 28 October
Clear. High 85°, low 70°.
0.15
Gretna, Thursday, 29 October
Climate normal for this date — 60-year average.
0.13Gretna, Friday, 30 October
Climate normal for this date — 60-year average.
0.11Gretna, Saturday, 31 October
Climate normal for this date — 60-year average.
0.13Gretna, Sunday, 1 November
Climate normal for this date — 60-year average.
0.13Gretna, Monday, 2 November
Climate normal for this date — 60-year average.
0.09Gretna, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Gretna, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.08Gretna, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Gretna, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Gretna, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Gretna, Sunday, 8 November
Climate normal for this date — 60-year average.
0.13Gretna, Monday, 9 November
Climate normal for this date — 60-year average.
0.07Gretna, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.11Gretna, Wednesday, 11 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 Gretna, 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 Gretna, 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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