Weather in Allegheny, PA
Allegheny, Wednesday, 11 November, 08:01
Overcast. Feels like 40°. High 64°, low 38°.
Monthly outlook for Allegheny, PA: average high 46.8°, average low 31.6°. That is 1° below the climate normal for November. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 11 November (63.9°), the coolest 24 November (21.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 48.5° | 49.3° | -0.5° |
| 21 November – 30 November | 44.1° | 46.7° | -1.5° |
| 1 December – 10 December | at normal | 42.1° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Brackenridge (5 mi).
0.11
Allegheny, Thursday, 12 November
Light rain. High 53°, low 38°.
0Allegheny, Friday, 13 November
Overcast. High 41°, low 30°.
0.02Allegheny, Saturday, 14 November
Light rain. High 40°, low 29°.
0.02Allegheny, Sunday, 15 November
Light rain. High 44°, low 35°.
0.01Allegheny, Monday, 16 November
Light rain. High 45°, low 34°.
0
Allegheny, Tuesday, 17 November
Mostly clear. High 48°, low 30°.
0
Allegheny, Wednesday, 18 November
Clear. High 47°, low 30°.
0Allegheny, Thursday, 19 November
Clear. High 50°, low 28°.
0Allegheny, Friday, 20 November
Overcast. High 53°, low 33°.
0.06Allegheny, Saturday, 21 November
Light rain. High 59°, low 37°.
0.77Allegheny, Sunday, 22 November
Heavy rain. High 50°, low 43°.
0.14
Allegheny, Monday, 23 November
Snow. High 40°, low 28°.
0.09Allegheny, Tuesday, 24 November
Light snow. High 34°, low 22°.
0
Allegheny, Wednesday, 25 November
Partly cloudy. High 36°, low 23°.
0Allegheny, Thursday, 26 November
Overcast. High 45°, low 28°.
0.15
Allegheny, Friday, 27 November
Climate normal for this date — 60-year average.
0.19Allegheny, Saturday, 28 November
Climate normal for this date — 60-year average.
0.09Allegheny, Sunday, 29 November
Climate normal for this date — 60-year average.
0.13Allegheny, Monday, 30 November
Climate normal for this date — 60-year average.
0.15Allegheny, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.11Allegheny, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.13Allegheny, Thursday, 3 December
Climate normal for this date — 60-year average.
0.12Allegheny, Friday, 4 December
Climate normal for this date — 60-year average.
0.13Allegheny, Saturday, 5 December
Climate normal for this date — 60-year average.
0.15Allegheny, Sunday, 6 December
Climate normal for this date — 60-year average.
0.11Allegheny, Monday, 7 December
Climate normal for this date — 60-year average.
0.11Allegheny, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.16Allegheny, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.19Allegheny, Thursday, 10 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 Allegheny, 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 Allegheny, 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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