Weather in Upper Uwchlan, PA
Upper Uwchlan, Thursday, 15 October, 01:12
Overcast. Feels like 64°. High 65°, low 48°.
Monthly outlook for Upper Uwchlan, PA: average high 63.9°, average low 48.6°. That is 1.3° above the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 4 days and 2.1 inches. The warmest day looks like 16 October (75.8°), the coolest 18 October (37.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 64.2° | 62.6° | +0.9° |
| 25 October – 3 November | 63.2° | 59.6° | +2° |
| 4 November – 13 November | at normal | 55.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Coatesville (9 mi).
0.23
Upper Uwchlan, Friday, 16 October
Heavy rain. High 76°, low 52°.
0.01Upper Uwchlan, Saturday, 17 October
Light rain. High 60°, low 42°.
0
Upper Uwchlan, Sunday, 18 October
Clear. High 55°, low 38°.
0Upper Uwchlan, Monday, 19 October
Clear. High 61°, low 40°.
0Upper Uwchlan, Tuesday, 20 October
Clear. High 66°, low 44°.
0Upper Uwchlan, Wednesday, 21 October
Clear. High 64°, low 47°.
0Upper Uwchlan, Thursday, 22 October
Clear. High 63°, low 47°.
0Upper Uwchlan, Friday, 23 October
Clear. High 65°, low 46°.
0Upper Uwchlan, Saturday, 24 October
Overcast. High 68°, low 51°.
0
Upper Uwchlan, Sunday, 25 October
Mostly clear. High 68°, low 51°.
0.04Upper Uwchlan, Monday, 26 October
Light rain. High 65°, low 55°.
0.12Upper Uwchlan, Tuesday, 27 October
Light rain. High 61°, low 57°.
0.8Upper Uwchlan, Wednesday, 28 October
Rain. High 60°, low 56°.
0.6Upper Uwchlan, Thursday, 29 October
Rain. High 66°, low 55°.
0Upper Uwchlan, Friday, 30 October
Clear. High 60°, low 49°.
0.05
Upper Uwchlan, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Upper Uwchlan, Sunday, 1 November
Climate normal for this date — 60-year average.
0.1Upper Uwchlan, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Upper Uwchlan, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Upper Uwchlan, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Upper Uwchlan, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Upper Uwchlan, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Upper Uwchlan, Saturday, 7 November
Climate normal for this date — 60-year average.
0.13Upper Uwchlan, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Upper Uwchlan, Monday, 9 November
Climate normal for this date — 60-year average.
0.16
Upper Uwchlan, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13Upper Uwchlan, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.18Upper Uwchlan, Thursday, 12 November
Climate normal for this date — 60-year average.
0.12Upper Uwchlan, Friday, 13 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 Upper Uwchlan, 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 Upper Uwchlan, 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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