Weather in East St. Clair, PA
East St. Clair, Sunday, 9 August, 08:23
Partly cloudy. Feels like 76°. High 85°, low 70°.
Monthly outlook for East St. Clair, PA: average high 85.1°, average low 62.8°. That is 5.4° above the climate normal for August. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 23 August (98°), the coolest 16 August (51°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 80.2° | 75.8° | +2.4° |
| 19 August – 28 August | 93.4° | 75.1° | +10.2° |
| 29 August – 7 September | at normal | 73.6° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Central City (13 mi).
0.06
East St. Clair, Monday, 10 August
Rain. High 86°, low 67°.
0.65East St. Clair, Tuesday, 11 August
Heavy rain. High 84°, low 66°.
0.02East St. Clair, Wednesday, 12 August
Light rain. High 82°, low 66°.
0.01East St. Clair, Thursday, 13 August
Light rain. High 78°, low 60°.
0
East St. Clair, Friday, 14 August
Overcast. High 75°, low 53°.
0East St. Clair, Saturday, 15 August
Overcast. High 73°, low 52°.
0East St. Clair, Sunday, 16 August
Overcast. High 74°, low 51°.
0East St. Clair, Monday, 17 August
Partly cloudy. High 81°, low 55°.
0
East St. Clair, Tuesday, 18 August
Mostly clear. High 83°, low 58°.
0East St. Clair, Wednesday, 19 August
Mostly clear. High 86°, low 59°.
0East St. Clair, Thursday, 20 August
Partly cloudy. High 91°, low 63°.
0.04East St. Clair, Friday, 21 August
Light rain. High 96°, low 70°.
0.03East St. Clair, Saturday, 22 August
Light rain. High 94°, low 71°.
0
East St. Clair, Sunday, 23 August
Clear. High 98°, low 68°.
0.07East St. Clair, Monday, 24 August
Light rain. High 95°, low 76°.
0.06East St. Clair, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07East St. Clair, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.11
East St. Clair, Thursday, 27 August
Climate normal for this date — 60-year average.
0.12East St. Clair, Friday, 28 August
Climate normal for this date — 60-year average.
0.08East St. Clair, Saturday, 29 August
Climate normal for this date — 60-year average.
0.1East St. Clair, Sunday, 30 August
Climate normal for this date — 60-year average.
0.12East St. Clair, Monday, 31 August
Climate normal for this date — 60-year average.
0.11East St. Clair, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11East St. Clair, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09East St. Clair, Thursday, 3 September
Climate normal for this date — 60-year average.
0.08East St. Clair, Friday, 4 September
Climate normal for this date — 60-year average.
0.11East St. Clair, Saturday, 5 September
Climate normal for this date — 60-year average.
0.22East St. Clair, Sunday, 6 September
Climate normal for this date — 60-year average.
0.12East St. Clair, Monday, 7 September
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 East 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 East 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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