Weather in Upper Merion, PA
Upper Merion, Tuesday, 13 October, 08:37
Clear. Feels like 60°. High 74°, low 56°.
Monthly outlook for Upper Merion, PA: average high 66.3°, average low 51.3°. That is 1.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 16 October (79°), the coolest 18 October (38.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 67.8° | 64.4° | +1.9° |
| 23 October – 1 November | 63.8° | 60.8° | +1.6° |
| 2 November – 11 November | at normal | 57.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Bridgeport (2 mi).
0.04
Upper Merion, Wednesday, 14 October
Light rain. High 76°, low 63°.
0.04Upper Merion, Thursday, 15 October
Rain. High 66°, low 54°.
0.45Upper Merion, Friday, 16 October
Rain. High 79°, low 57°.
0Upper Merion, Saturday, 17 October
Light rain. High 54°, low 41°.
0Upper Merion, Sunday, 18 October
Clear. High 58°, low 39°.
0
Upper Merion, Monday, 19 October
Overcast. High 61°, low 45°.
0Upper Merion, Tuesday, 20 October
Overcast. High 68°, low 54°.
0Upper Merion, Wednesday, 21 October
Clear. High 71°, low 54°.
0Upper Merion, Thursday, 22 October
Clear. High 72°, low 55°.
0
Upper Merion, Friday, 23 October
Mostly clear. High 71°, low 56°.
0Upper Merion, Saturday, 24 October
Overcast. High 75°, low 59°.
0
Upper Merion, Sunday, 25 October
Partly cloudy. High 66°, low 54°.
0.01Upper Merion, Monday, 26 October
Light rain. High 56°, low 48°.
0Upper Merion, Tuesday, 27 October
Mostly clear. High 54°, low 43°.
0Upper Merion, Wednesday, 28 October
Overcast. High 60°, low 44°.
0.23Upper Merion, Thursday, 29 October
Climate normal for this date — 60-year average.
0.08Upper Merion, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Upper Merion, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Upper Merion, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Upper Merion, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Upper Merion, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.08Upper Merion, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Upper Merion, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Upper Merion, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Upper Merion, Saturday, 7 November
Climate normal for this date — 60-year average.
0.11Upper Merion, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Upper Merion, Monday, 9 November
Climate normal for this date — 60-year average.
0.16
Upper Merion, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.12Upper Merion, Wednesday, 11 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 Merion, 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 Merion, 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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