Weather in South Mountain, PA
South Mountain, Sunday, 8 November, 21:57
Clear. Feels like 45°. High 57°, low 42°.
Monthly outlook for South Mountain, PA: average high 48.9°, average low 35.6°. That is 1.6° below the climate normal for November. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 10 November (63°), the coolest 23 November (26.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 November – 17 November | 49.8° | 53° | -1.8° |
| 18 November – 27 November | 47.4° | 49.8° | -1.3° |
| 28 November – 7 December | at normal | 45.9° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Rouzerville (8 mi).
0
South Mountain, Monday, 9 November
Overcast. High 54°, low 43°.
0
South Mountain, Tuesday, 10 November
Mostly clear. High 63°, low 40°.
0South Mountain, Wednesday, 11 November
Mostly clear. High 60°, low 41°.
0.12
South Mountain, Thursday, 12 November
Light rain. High 51°, low 42°.
0.28
South Mountain, Friday, 13 November
Snow. High 40°, low 34°.
0
South Mountain, Saturday, 14 November
Partly cloudy. High 41°, low 30°.
0South Mountain, Sunday, 15 November
Overcast. High 43°, low 36°.
0South Mountain, Monday, 16 November
Partly cloudy. High 42°, low 35°.
0
South Mountain, Tuesday, 17 November
Clear. High 48°, low 32°.
0South Mountain, Wednesday, 18 November
Overcast. High 50°, low 31°.
0.18South Mountain, Thursday, 19 November
Rain. High 50°, low 33°.
0.15South Mountain, Friday, 20 November
Rain. High 51°, low 38°.
0.13South Mountain, Saturday, 21 November
Light rain. High 46°, low 37°.
0South Mountain, Sunday, 22 November
Clear. High 41°, low 28°.
0South Mountain, Monday, 23 November
Clear. High 47°, low 26°.
0.13
South Mountain, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09South Mountain, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.17South Mountain, Thursday, 26 November
Climate normal for this date — 60-year average.
0.11South Mountain, Friday, 27 November
Climate normal for this date — 60-year average.
0.22South Mountain, Saturday, 28 November
Climate normal for this date — 60-year average.
0.13South Mountain, Sunday, 29 November
Climate normal for this date — 60-year average.
0.11South Mountain, Monday, 30 November
Climate normal for this date — 60-year average.
0.14South Mountain, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.11South Mountain, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.12South Mountain, Thursday, 3 December
Climate normal for this date — 60-year average.
0.09South Mountain, Friday, 4 December
Climate normal for this date — 60-year average.
0.13South Mountain, Saturday, 5 December
Climate normal for this date — 60-year average.
0.11South Mountain, Sunday, 6 December
Climate normal for this date — 60-year average.
0.09South Mountain, Monday, 7 December
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 South Mountain, 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 South Mountain, 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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