Weather in Brandywine Summit, PA
Brandywine Summit, Saturday, 31 October, 17:27
Clear. Feels like 56°. High 59°, low 41°.
Monthly outlook for Brandywine Summit, PA: average high 61°, average low 48.1°. That is 3° above the climate normal for October. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 5 November (72.9°), the coolest 1 November (36.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 64.8° | 57.3° | +4.2° |
| 10 November – 19 November | 54.7° | 52.1° | +1.5° |
| 20 November – 29 November | at normal | 49.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — West Chester (7 mi).
0
Brandywine Summit, Sunday, 1 November
Overcast. High 63°, low 37°.
0Brandywine Summit, Monday, 2 November
Overcast. High 65°, low 41°.
0
Brandywine Summit, Tuesday, 3 November
Mostly clear. High 68°, low 46°.
0Brandywine Summit, Wednesday, 4 November
Clear. High 70°, low 50°.
0.12
Brandywine Summit, Thursday, 5 November
Light rain. High 73°, low 55°.
0.8Brandywine Summit, Friday, 6 November
Heavy rain. High 67°, low 62°.
0.02Brandywine Summit, Saturday, 7 November
Light rain. High 61°, low 56°.
0.03Brandywine Summit, Sunday, 8 November
Light rain. High 61°, low 53°.
0.22Brandywine Summit, Monday, 9 November
Light rain. High 61°, low 51°.
0.01Brandywine Summit, Tuesday, 10 November
Light rain. High 60°, low 50°.
0Brandywine Summit, Wednesday, 11 November
Overcast. High 57°, low 46°.
0Brandywine Summit, Thursday, 12 November
Clear. High 53°, low 46°.
0.02Brandywine Summit, Friday, 13 November
Light rain. High 48°, low 43°.
0.09Brandywine Summit, Saturday, 14 November
Light rain. High 53°, low 45°.
0.09Brandywine Summit, Sunday, 15 November
Light rain. High 57°, low 48°.
0.14
Brandywine 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.
0.11
Brandywine 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.
0.11Brandywine Summit, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.13Brandywine Summit, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.16Brandywine Summit, Thursday, 26 November
Climate normal for this date — 60-year average.
0.1Brandywine Summit, Friday, 27 November
Climate normal for this date — 60-year average.
0.16Brandywine Summit, Saturday, 28 November
Climate normal for this date — 60-year average.
0.15Brandywine Summit, Sunday, 29 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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