Weather in Allegheny, PA
Allegheny, Saturday, 24 October, 08:28
Clear. Feels like 38°. High 61°, low 37°.
Monthly outlook for Allegheny, PA: average high 55.2°, average low 39.4°. That is 1.1° above the climate normal for October. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 7 days and 2.0 inches. The warmest day looks like 29 October (66.2°), the coolest 7 November (20.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 24 October – 2 November | 60.1° | 54.6° | +3.1° |
| 3 November – 12 November | 47° | 50° | -1.7° |
| 13 November – 22 November | at normal | 45.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Tidioute (11 mi).
0Allegheny, Sunday, 25 October
Clear. High 63°, low 33°.
0
Allegheny, Monday, 26 October
Mostly clear. High 64°, low 42°.
0
Allegheny, Tuesday, 27 October
Partly cloudy. High 57°, low 41°.
0
Allegheny, Wednesday, 28 October
Overcast. High 60°, low 41°.
0Allegheny, Thursday, 29 October
Mostly clear. High 66°, low 45°.
0Allegheny, Friday, 30 October
Overcast. High 59°, low 48°.
0Allegheny, Saturday, 31 October
Overcast. High 59°, low 42°.
0.24
Allegheny, Sunday, 1 November
Light rain. High 54°, low 50°.
0.02Allegheny, Monday, 2 November
Light rain. High 57°, low 48°.
0.18Allegheny, Tuesday, 3 November
Rain. High 61°, low 43°.
0.17Allegheny, Wednesday, 4 November
Light rain. High 56°, low 52°.
0.5Allegheny, Thursday, 5 November
Rain. High 51°, low 37°.
0.16
Allegheny, Friday, 6 November
Snow. High 38°, low 30°.
0.09Allegheny, Saturday, 7 November
Light snow. High 36°, low 20°.
0Allegheny, Sunday, 8 November
Light rain. High 40°, low 23°.
0.1
Allegheny, Monday, 9 November
Climate normal for this date — 60-year average.
0.17Allegheny, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.16Allegheny, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.12Allegheny, Thursday, 12 November
Climate normal for this date — 60-year average.
0.09Allegheny, Friday, 13 November
Climate normal for this date — 60-year average.
0.13Allegheny, Saturday, 14 November
Climate normal for this date — 60-year average.
0.17Allegheny, Sunday, 15 November
Climate normal for this date — 60-year average.
0.17Allegheny, Monday, 16 November
Climate normal for this date — 60-year average.
0.15Allegheny, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Allegheny, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.11Allegheny, Thursday, 19 November
Climate normal for this date — 60-year average.
0.13Allegheny, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Allegheny, Saturday, 21 November
Climate normal for this date — 60-year average.
0.12Allegheny, Sunday, 22 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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