Weather in Arnold, PA
Arnold, Wednesday, 7 October, 15:48
Clear. Feels like 72°. High 73°, low 41°.
Monthly outlook for Arnold, PA: average high 63.6°, average low 46.2°. That is 0.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 6 days and 1.7 inches. The warmest day looks like 10 October (75.9°), the coolest 22 October (37.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 7 October – 16 October | 68° | 64.4° | +2° |
| 17 October – 26 October | 56.4° | 59.5° | -1.7° |
| 27 October – 5 November | at normal | 57° | — |
October records over 66 years
0Arnold, Thursday, 8 October
Clear. High 71°, low 47°.
0Arnold, Friday, 9 October
Clear. High 66°, low 44°.
0
Arnold, Saturday, 10 October
Overcast. High 76°, low 48°.
0.21
Arnold, Sunday, 11 October
Rain. High 66°, low 58°.
0.02Arnold, Monday, 12 October
Light rain. High 69°, low 61°.
0.06Arnold, Tuesday, 13 October
Light rain. High 73°, low 54°.
0.02Arnold, Wednesday, 14 October
Light rain. High 54°, low 41°.
0
Arnold, Thursday, 15 October
Mostly clear. High 62°, low 38°.
0Arnold, Friday, 16 October
Clear. High 70°, low 44°.
0.02Arnold, Saturday, 17 October
Light rain. High 70°, low 50°.
0Arnold, Sunday, 18 October
Overcast. High 60°, low 48°.
0Arnold, Monday, 19 October
Overcast. High 53°, low 45°.
0Arnold, Tuesday, 20 October
Clear. High 58°, low 42°.
0.02Arnold, Wednesday, 21 October
Light rain. High 50°, low 41°.
0Arnold, Thursday, 22 October
Overcast. High 47°, low 37°.
0.11
Arnold, Friday, 23 October
Climate normal for this date — 60-year average.
0.12
Arnold, Saturday, 24 October
Climate normal for this date — 60-year average.
0.14Arnold, Sunday, 25 October
Climate normal for this date — 60-year average.
0.1Arnold, Monday, 26 October
Climate normal for this date — 60-year average.
0.12Arnold, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.12Arnold, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.17Arnold, Thursday, 29 October
Climate normal for this date — 60-year average.
0.13Arnold, Friday, 30 October
Climate normal for this date — 60-year average.
0.12Arnold, Saturday, 31 October
Climate normal for this date — 60-year average.
0.11Arnold, Sunday, 1 November
Climate normal for this date — 60-year average.
0.14Arnold, Monday, 2 November
Climate normal for this date — 60-year average.
0.08Arnold, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.12Arnold, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.11Arnold, Thursday, 5 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 Arnold, 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 Arnold, 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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