Weather in Brandywine Summit, PA
Brandywine Summit, Sunday, 25 October, 09:19
Clear. Feels like 46°. High 64°, low 36°.
Monthly outlook for Brandywine Summit, PA: average high 65°, average low 49.7°. That is 3.9° above the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 30 October (72.9°), the coolest 25 October (35.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 67° | 59.2° | +4.4° |
| 4 November – 13 November | 61.6° | 54.8° | +3.8° |
| 14 November – 23 November | at normal | 50.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — West Chester (7 mi).
0Brandywine Summit, Monday, 26 October
Clear. High 68°, low 37°.
0Brandywine Summit, Tuesday, 27 October
Clear. High 64°, low 49°.
0
Brandywine Summit, Wednesday, 28 October
Overcast. High 61°, low 42°.
0Brandywine Summit, Thursday, 29 October
Clear. High 66°, low 47°.
0Brandywine Summit, Friday, 30 October
Clear. High 73°, low 52°.
0Brandywine Summit, Saturday, 31 October
Clear. High 69°, low 57°.
0Brandywine Summit, Sunday, 1 November
Overcast. High 68°, low 56°.
0Brandywine Summit, Monday, 2 November
Overcast. High 68°, low 56°.
0.02
Brandywine Summit, Tuesday, 3 November
Light rain. High 70°, low 57°.
0.04Brandywine Summit, Wednesday, 4 November
Light rain. High 70°, low 58°.
0.34Brandywine Summit, Thursday, 5 November
Rain. High 62°, low 55°.
0Brandywine Summit, Friday, 6 November
Overcast. High 61°, low 50°.
0Brandywine Summit, Saturday, 7 November
Overcast. High 62°, low 50°.
0Brandywine Summit, Sunday, 8 November
Clear. High 60°, low 49°.
0Brandywine Summit, Monday, 9 November
Clear. High 55°, low 45°.
0.16
Brandywine Summit, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13
Brandywine Summit, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.19Brandywine Summit, Thursday, 12 November
Climate normal for this date — 60-year average.
0.13Brandywine Summit, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Brandywine Summit, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Brandywine Summit, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14Brandywine Summit, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Brandywine Summit, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Brandywine Summit, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Brandywine Summit, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Brandywine Summit, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Brandywine Summit, Saturday, 21 November
Climate normal for this date — 60-year average.
0.11Brandywine Summit, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Brandywine Summit, Monday, 23 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 Brandywine Summit, 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 Brandywine Summit, 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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