Weather in Arch Rock, PA
Arch Rock, Sunday, 18 October, 13:08
Clear. Feels like 55°. High 57°, low 34°.
Monthly outlook for Arch Rock, PA: average high 61°, average low 42.4°. That is 1.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 31 October (71.5°), the coolest 24 October (32.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 59.7° | 59.8° | -0.1° |
| 28 October – 6 November | 63.2° | 56.9° | +3.5° |
| 7 November – 16 November | at normal | 51.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Mifflintown (3 mi).
0Arch Rock, Monday, 19 October
Clear. High 64°, low 38°.
0Arch Rock, Tuesday, 20 October
Clear. High 64°, low 40°.
0Arch Rock, Wednesday, 21 October
Clear. High 60°, low 35°.
0Arch Rock, Thursday, 22 October
Clear. High 63°, low 35°.
0
Arch Rock, Friday, 23 October
Mostly clear. High 54°, low 37°.
0Arch Rock, Saturday, 24 October
Clear. High 53°, low 32°.
0
Arch Rock, Sunday, 25 October
Overcast. High 59°, low 37°.
0Arch Rock, Monday, 26 October
Overcast. High 62°, low 49°.
0.02
Arch Rock, Tuesday, 27 October
Light rain. High 60°, low 45°.
0Arch Rock, Wednesday, 28 October
Overcast. High 60°, low 43°.
0.57Arch Rock, Thursday, 29 October
Rain. High 58°, low 52°.
0.01Arch Rock, Friday, 30 October
Light rain. High 68°, low 58°.
0.09Arch Rock, Saturday, 31 October
Light rain. High 72°, low 55°.
0.16Arch Rock, Sunday, 1 November
Rain. High 64°, low 48°.
0Arch Rock, Monday, 2 November
Overcast. High 57°, low 42°.
0.07
Arch Rock, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.08Arch Rock, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Arch Rock, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Arch Rock, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Arch Rock, Saturday, 7 November
Climate normal for this date — 60-year average.
0.15Arch Rock, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09
Arch Rock, Monday, 9 November
Climate normal for this date — 60-year average.
0.16Arch Rock, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13Arch Rock, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.17Arch Rock, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Arch Rock, Friday, 13 November
Climate normal for this date — 60-year average.
0.08Arch Rock, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13Arch Rock, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Arch Rock, Monday, 16 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 Arch Rock, 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 Arch Rock, 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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