Weather in Allegheny, PA
Allegheny, Tuesday, 20 October, 23:46
Clear. Feels like 38°. High 65°, low 35°.
Monthly outlook for Allegheny, PA: average high 55.3°, average low 36°. That is 0.9° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 20 October (64.9°), the coolest 22 October (27.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 58° | 54.4° | +2° |
| 30 October – 8 November | 50.9° | 51.5° | -0.3° |
| 9 November – 18 November | at normal | 46.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Central City (11 mi).
0
Allegheny, Wednesday, 21 October
Clear. High 63°, low 29°.
0Allegheny, Thursday, 22 October
Clear. High 61°, low 28°.
0Allegheny, Friday, 23 October
Clear. High 55°, low 41°.
0Allegheny, Saturday, 24 October
Clear. High 57°, low 38°.
0Allegheny, Sunday, 25 October
Clear. High 62°, low 39°.
0Allegheny, Monday, 26 October
Clear. High 64°, low 40°.
0
Allegheny, Tuesday, 27 October
Overcast. High 61°, low 44°.
0.01
Allegheny, Wednesday, 28 October
Light rain. High 48°, low 36°.
0.1Allegheny, Thursday, 29 October
Light rain. High 45°, low 35°.
0
Allegheny, Friday, 30 October
Partly cloudy. High 49°, low 33°.
0Allegheny, Saturday, 31 October
Partly cloudy. High 51°, low 32°.
0.06Allegheny, Sunday, 1 November
Light rain. High 57°, low 36°.
0.46Allegheny, Monday, 2 November
Rain. High 57°, low 47°.
0Allegheny, Tuesday, 3 November
Partly cloudy. High 46°, low 34°.
0Allegheny, Wednesday, 4 November
Clear. High 45°, low 29°.
0.13
Allegheny, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Allegheny, Friday, 6 November
Climate normal for this date — 60-year average.
0.13Allegheny, Saturday, 7 November
Climate normal for this date — 60-year average.
0.11Allegheny, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Allegheny, Monday, 9 November
Climate normal for this date — 60-year average.
0.17Allegheny, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.14Allegheny, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.18Allegheny, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Allegheny, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Allegheny, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13Allegheny, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Allegheny, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Allegheny, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Allegheny, Wednesday, 18 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 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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