Weather in Shannon Heights, PA
Shannon Heights, Sunday, 9 August, 11:41
Mostly clear. Feels like 83°. High 87°, low 68°.
Monthly outlook for Shannon Heights, PA: average high 78.3°, average low 59.2°. That is 1° below the climate normal for August. Precipitation is expected on 7 days (about 2.7 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 9 August (87.3°), the coolest 16 August (52.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 79.2° | 80.4° | -0.7° |
| 19 August – 28 August | 76.7° | 79.9° | -1.8° |
| 29 August – 7 September | at normal | 78.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Pittsburgh (8 mi).
1.19
Shannon Heights, Monday, 10 August
Heavy rain. High 87°, low 68°.
0.18Shannon Heights, Tuesday, 11 August
Rain. High 81°, low 65°.
0.29Shannon Heights, Wednesday, 12 August
Rain. High 81°, low 66°.
0
Shannon Heights, Thursday, 13 August
Partly cloudy. High 78°, low 62°.
0
Shannon Heights, Friday, 14 August
Overcast. High 76°, low 58°.
0Shannon Heights, Saturday, 15 August
Overcast. High 74°, low 53°.
0.06Shannon Heights, Sunday, 16 August
Light rain. High 72°, low 52°.
0Shannon Heights, Monday, 17 August
Light rain. High 75°, low 60°.
0Shannon Heights, Tuesday, 18 August
Overcast. High 81°, low 56°.
0.12Shannon Heights, Wednesday, 19 August
Light rain. High 82°, low 61°.
0Shannon Heights, Thursday, 20 August
Overcast. High 71°, low 57°.
0Shannon Heights, Friday, 21 August
Overcast. High 77°, low 52°.
0.72Shannon Heights, Saturday, 22 August
Heavy rain. High 86°, low 58°.
0.09Shannon Heights, Sunday, 23 August
Light rain. High 70°, low 58°.
0
Shannon Heights, Monday, 24 August
Clear. High 75°, low 53°.
0.09Shannon Heights, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.09Shannon Heights, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13
Shannon Heights, Thursday, 27 August
Climate normal for this date — 60-year average.
0.19Shannon Heights, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Shannon Heights, Saturday, 29 August
Climate normal for this date — 60-year average.
0.14Shannon Heights, Sunday, 30 August
Climate normal for this date — 60-year average.
0.16Shannon Heights, Monday, 31 August
Climate normal for this date — 60-year average.
0.11Shannon Heights, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.13Shannon Heights, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1Shannon Heights, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Shannon Heights, Friday, 4 September
Climate normal for this date — 60-year average.
0.12Shannon Heights, Saturday, 5 September
Climate normal for this date — 60-year average.
0.14Shannon Heights, Sunday, 6 September
Climate normal for this date — 60-year average.
0.11Shannon Heights, 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 Shannon Heights, 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 Shannon Heights, 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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