Weather in West St. Clair, PA
West St. Clair, Tuesday, 27 October, 12:52
Clear. Feels like 62°. High 65°, low 41°.
Monthly outlook for West St. Clair, PA: average high 56.6°, average low 43.7°. That is 2.9° above the climate normal for October. Precipitation is expected on 7 days (about 2.5 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 29 October (67.9°), the coolest 11 November (28.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 27 October – 5 November | 59.5° | 52.7° | +3.8° |
| 6 November – 15 November | 51.9° | 47.9° | +2.2° |
| 16 November – 25 November | at normal | 44.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Central City (10 mi).
0
West St. Clair, Wednesday, 28 October
Overcast. High 67°, low 39°.
0West St. Clair, Thursday, 29 October
Clear. High 68°, low 39°.
0
West St. Clair, Friday, 30 October
Partly cloudy. High 63°, low 47°.
0West St. Clair, Saturday, 31 October
Overcast. High 59°, low 44°.
0
West St. Clair, Sunday, 1 November
Mostly clear. High 67°, low 50°.
1.14
West St. Clair, Monday, 2 November
Rain. High 55°, low 51°.
0.2West St. Clair, Tuesday, 3 November
Rain. High 58°, low 50°.
0.14West St. Clair, Wednesday, 4 November
Light rain. High 46°, low 41°.
0.37West St. Clair, Thursday, 5 November
Rain. High 47°, low 42°.
0.4West St. Clair, Friday, 6 November
Rain. High 54°, low 48°.
0.04West St. Clair, Saturday, 7 November
Light rain. High 53°, low 50°.
0West St. Clair, Sunday, 8 November
Light rain. High 52°, low 45°.
0West St. Clair, Monday, 9 November
Clear. High 58°, low 43°.
0.17West St. Clair, Tuesday, 10 November
Light rain. High 56°, low 41°.
0.06
West St. Clair, Wednesday, 11 November
Light snow. High 39°, low 28°.
0.18
West St. Clair, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06West St. Clair, Friday, 13 November
Climate normal for this date — 60-year average.
0.09West St. Clair, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13West St. Clair, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13West St. Clair, Monday, 16 November
Climate normal for this date — 60-year average.
0.11West St. Clair, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07West St. Clair, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.1West St. Clair, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09West St. Clair, Friday, 20 November
Climate normal for this date — 60-year average.
0.09West St. Clair, Saturday, 21 November
Climate normal for this date — 60-year average.
0.12West St. Clair, Sunday, 22 November
Climate normal for this date — 60-year average.
0.06West St. Clair, Monday, 23 November
Climate normal for this date — 60-year average.
0.11West St. Clair, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.1West St. Clair, Wednesday, 25 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 West St. Clair, 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 West St. Clair, 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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