Weather in Gretna, PA
Gretna, Tuesday, 10 November, 14:06
Clear. Feels like 61°. High 63°, low 37°.
Monthly outlook for Gretna, PA: average high 50°, average low 34.1°. That is 0.6° above the climate normal for November. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 11 November (63°), the coolest 25 November (27.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 November – 19 November | 48.9° | 49.9° | -0.6° |
| 20 November – 29 November | 52° | 47.2° | +2.6° |
| 30 November – 9 December | at normal | 42.7° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — East Finley (14 mi).
0
Gretna, Wednesday, 11 November
Overcast. High 63°, low 35°.
0
Gretna, Thursday, 12 November
Light rain. High 50°, low 39°.
0Gretna, Friday, 13 November
Light rain. High 43°, low 34°.
0.04Gretna, Saturday, 14 November
Light rain. High 41°, low 32°.
0Gretna, Sunday, 15 November
Overcast. High 41°, low 30°.
0Gretna, Monday, 16 November
Overcast. High 43°, low 32°.
0Gretna, Tuesday, 17 November
Clear. High 45°, low 28°.
0Gretna, Wednesday, 18 November
Clear. High 48°, low 29°.
0Gretna, Thursday, 19 November
Clear. High 53°, low 30°.
0Gretna, Friday, 20 November
Overcast. High 52°, low 35°.
0Gretna, Saturday, 21 November
Clear. High 56°, low 34°.
0.09Gretna, Sunday, 22 November
Light rain. High 60°, low 39°.
0.3Gretna, Monday, 23 November
Rain. High 58°, low 48°.
0Gretna, Tuesday, 24 November
Clear. High 48°, low 37°.
0Gretna, Wednesday, 25 November
Overcast. High 38°, low 27°.
0.17
Gretna, Thursday, 26 November
Climate normal for this date — 60-year average.
0.14Gretna, Friday, 27 November
Climate normal for this date — 60-year average.
0.17Gretna, Saturday, 28 November
Climate normal for this date — 60-year average.
0.09
Gretna, Sunday, 29 November
Climate normal for this date — 60-year average.
0.13Gretna, Monday, 30 November
Climate normal for this date — 60-year average.
0.15Gretna, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.12Gretna, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.12Gretna, Thursday, 3 December
Climate normal for this date — 60-year average.
0.11Gretna, Friday, 4 December
Climate normal for this date — 60-year average.
0.12Gretna, Saturday, 5 December
Climate normal for this date — 60-year average.
0.14Gretna, Sunday, 6 December
Climate normal for this date — 60-year average.
0.09Gretna, Monday, 7 December
Climate normal for this date — 60-year average.
0.12Gretna, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.15Gretna, Wednesday, 9 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 Gretna, PA 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, PA 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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