Weather in Allegheny, PA
Allegheny, Friday, 30 October, 06:00
Overcast. Feels like 58°. High 60°, low 40°.
Monthly outlook for Allegheny, PA: average high 59.2°, average low 42.9°. That is 4.3° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 14 November (71.9°), the coolest 7 November (31.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 60° | 53.2° | +3.8° |
| 9 November – 18 November | 57.9° | 47.8° | +5.6° |
| 19 November – 28 November | at normal | 44.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Huston (13 mi).
0Allegheny, Saturday, 31 October
Overcast. High 58°, low 35°.
0Allegheny, Sunday, 1 November
Overcast. High 64°, low 49°.
0
Allegheny, Monday, 2 November
Clear. High 71°, low 49°.
0
Allegheny, Tuesday, 3 November
Partly cloudy. High 69°, low 49°.
0Allegheny, Wednesday, 4 November
Clear. High 66°, low 49°.
0.88
Allegheny, Thursday, 5 November
Rain. High 62°, low 58°.
0.3Allegheny, Friday, 6 November
Light rain. High 56°, low 40°.
0Allegheny, Saturday, 7 November
Clear. High 47°, low 32°.
0.05
Allegheny, Sunday, 8 November
Snow. High 46°, low 32°.
0Allegheny, Monday, 9 November
Light snow. High 49°, low 37°.
0Allegheny, Tuesday, 10 November
Clear. High 50°, low 37°.
0Allegheny, Wednesday, 11 November
Overcast. High 54°, low 36°.
0.24Allegheny, Thursday, 12 November
Rain. High 58°, low 43°.
0.01Allegheny, Friday, 13 November
Light rain. High 66°, low 52°.
0Allegheny, Saturday, 14 November
Overcast. High 72°, low 52°.
0.11
Allegheny, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Allegheny, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Allegheny, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Allegheny, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Allegheny, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Allegheny, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Allegheny, Saturday, 21 November
Climate normal for this date — 60-year average.
0.11Allegheny, Sunday, 22 November
Climate normal for this date — 60-year average.
0.05Allegheny, Monday, 23 November
Climate normal for this date — 60-year average.
0.1Allegheny, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.1Allegheny, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.17Allegheny, Thursday, 26 November
Climate normal for this date — 60-year average.
0.12Allegheny, Friday, 27 November
Climate normal for this date — 60-year average.
0.2Allegheny, Saturday, 28 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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