Weather in Bryn Athyn, PA
Bryn Athyn, Saturday, 8 August, 22:22
Overcast. Feels like 77°. High 86°, low 71°.
Monthly outlook for Bryn Athyn, PA: average high 82.6°, average low 68°. That is 0.1° above the climate normal for August. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 10 August (91.9°), the coolest 22 August (60.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 85.2° | 83.2° | +1.1° |
| 18 August – 27 August | 78.2° | 81.6° | -1.9° |
| 28 August – 6 September | at normal | 80.5° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Roslyn (4 mi).
0
Bryn Athyn, Sunday, 9 August
Light rain. High 90°, low 72°.
0Bryn Athyn, Monday, 10 August
Light rain. High 92°, low 73°.
0.01Bryn Athyn, Tuesday, 11 August
Light rain. High 91°, low 73°.
0Bryn Athyn, Wednesday, 12 August
Overcast. High 84°, low 75°.
0
Bryn Athyn, Thursday, 13 August
Clear. High 86°, low 72°.
0Bryn Athyn, Friday, 14 August
Clear. High 80°, low 64°.
0Bryn Athyn, Saturday, 15 August
Clear. High 82°, low 65°.
0Bryn Athyn, Sunday, 16 August
Overcast. High 82°, low 64°.
0.04Bryn Athyn, Monday, 17 August
Light rain. High 81°, low 68°.
0.16Bryn Athyn, Tuesday, 18 August
Light rain. High 68°, low 66°.
0.04Bryn Athyn, Wednesday, 19 August
Light rain. High 78°, low 67°.
1.15Bryn Athyn, Thursday, 20 August
Heavy rain. High 80°, low 69°.
0Bryn Athyn, Friday, 21 August
Clear. High 79°, low 63°.
0Bryn Athyn, Saturday, 22 August
Clear. High 79°, low 61°.
0Bryn Athyn, Sunday, 23 August
Overcast. High 85°, low 66°.
0.07
Bryn Athyn, Monday, 24 August
Climate normal for this date — 60-year average.
0.06
Bryn Athyn, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07Bryn Athyn, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.2
Bryn Athyn, Thursday, 27 August
Climate normal for this date — 60-year average.
0.25Bryn Athyn, Friday, 28 August
Climate normal for this date — 60-year average.
0.14Bryn Athyn, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Bryn Athyn, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Bryn Athyn, Monday, 31 August
Climate normal for this date — 60-year average.
0.13Bryn Athyn, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.13Bryn Athyn, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.17Bryn Athyn, Thursday, 3 September
Climate normal for this date — 60-year average.
0.12Bryn Athyn, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Bryn Athyn, Saturday, 5 September
Climate normal for this date — 60-year average.
0.22Bryn Athyn, Sunday, 6 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 Bryn Athyn, 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 Bryn Athyn, 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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