Weather in Berwyn, PA
Berwyn, Sunday, 11 October, 15:37
Heavy rain. Feels like 61°. High 61°, low 57°.
Monthly outlook for Berwyn, PA: average high 61.8°, average low 47.4°. That is 0.7° below the climate normal for October. Precipitation is expected on 4 days (about 1.9 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 14 October (79.3°), the coolest 18 October (33.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 64° | 63.9° | +0.1° |
| 21 October – 30 October | 58° | 60.5° | -1.4° |
| 31 October – 9 November | at normal | 57.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Bryn Mawr (7 mi).
0.18Berwyn, Monday, 12 October
Rain. High 74°, low 52°.
0
Berwyn, Tuesday, 13 October
Clear. High 76°, low 56°.
0
Berwyn, Wednesday, 14 October
Partly cloudy. High 79°, low 65°.
0
Berwyn, Thursday, 15 October
Overcast. High 66°, low 56°.
0.46Berwyn, Friday, 16 October
Rain. High 75°, low 54°.
0Berwyn, Saturday, 17 October
Light rain. High 52°, low 36°.
0Berwyn, Sunday, 18 October
Clear. High 45°, low 33°.
0Berwyn, Monday, 19 October
Overcast. High 52°, low 35°.
0Berwyn, Tuesday, 20 October
Clear. High 60°, low 41°.
0Berwyn, Wednesday, 21 October
Clear. High 61°, low 45°.
0Berwyn, Thursday, 22 October
Clear. High 60°, low 45°.
0Berwyn, Friday, 23 October
Clear. High 59°, low 45°.
0Berwyn, Saturday, 24 October
Overcast. High 55°, low 45°.
0Berwyn, Sunday, 25 October
Clear. High 58°, low 47°.
0.08Berwyn, Monday, 26 October
Light rain. High 55°, low 43°.
0.17Berwyn, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.13Berwyn, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.23Berwyn, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Berwyn, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Berwyn, Saturday, 31 October
Climate normal for this date — 60-year average.
0.08Berwyn, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Berwyn, Monday, 2 November
Climate normal for this date — 60-year average.
0.08Berwyn, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.08Berwyn, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Berwyn, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Berwyn, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Berwyn, Saturday, 7 November
Climate normal for this date — 60-year average.
0.11Berwyn, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Berwyn, Monday, 9 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 Berwyn, 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 Berwyn, 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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