Monthly outlook for South Mountain, PA: average high 51.2°, average low 35.7°. That is 0.8° above the climate normal for November. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 20 November (62°), the coolest 30 November (26.9°).
51.2°/35.7°
Average high / low
+0.8°
Above normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
52.7°
50.4°
+1.3°
25 November – 4 December
48.7°
47.6°
+0.6°
5 December – 14 December
at normal
43.4°
—
November records over 66 years
79.5°6 November 2024All-time high
11.1°17 November 1995All-time low
Climate normals and records are computed from the nearest reference point — Rouzerville (8 mi).
Mon, 1650° / 38°0
50 °
South Mountain, Monday, 16 November
Mostly clear. High 50°, low 38°.
Pressure30.47 inHg
Wind8 mph NW
Humidity51%
Visibility6.2 mi
Dew point31°
Tue, 1755° / 33°0
55 °
South Mountain, Tuesday, 17 November
Clear. High 55°, low 33°.
Pressure30.56 inHg
Wind3.5 mph W
Humidity49%
Visibility6.2 mi
Dew point33°
Wed, 1856° / 35°0
56 °
South Mountain, Wednesday, 18 November
Clear. High 56°, low 35°.
Pressure30.50 inHg
Wind2.2 mph W
Humidity43%
Visibility6.2 mi
Dew point33°
Thu, 1961° / 39°0
61 °
South Mountain, Thursday, 19 November
Overcast. High 61°, low 39°.
Pressure30.42 inHg
Wind3.9 mph SW
Humidity35%
Visibility6.2 mi
Dew point27°
Fri, 2062° / 41°0
62 °
South Mountain, Friday, 20 November
Clear. High 62°, low 41°.
Pressure30.36 inHg
Wind9.1 mph W
Humidity54%
Visibility—
Dew point36°
Sat, 2155° / 40°0
55 °
South Mountain, Saturday, 21 November
Overcast. High 55°, low 40°.
Pressure30.36 inHg
Wind5.3 mph SE
Humidity69%
Visibility—
Dew point40°
Sun, 2254° / 41°0
54 °
South Mountain, Sunday, 22 November
Overcast. High 54°, low 41°.
Pressure30.12 inHg
Wind3.5 mph SW
Humidity83%
Visibility—
Dew point41°
Mon, 2346° / 35°0
46 °
South Mountain, Monday, 23 November
Overcast. High 46°, low 35°.
Pressure30.00 inHg
Wind17 mph NW
Humidity56%
Visibility—
Dew point29°
Tue, 2444° / 29°0
44 °
South Mountain, Tuesday, 24 November
Clear. High 44°, low 29°.
Pressure30.30 inHg
Wind13 mph NW
Humidity58%
Visibility—
Dew point23°
Wed, 2548° / 29°0
48 °
South Mountain, Wednesday, 25 November
Clear. High 48°, low 29°.
Pressure30.39 inHg
Wind4.6 mph SW
Humidity58%
Visibility—
Dew point26°
Thu, 2652° / 31°0
52 °
South Mountain, Thursday, 26 November
Mostly clear. High 52°, low 31°.
Pressure30.39 inHg
Wind3.9 mph S
Humidity56%
Visibility—
Dew point28°
Fri, 2751° / 34°0.02
51 °
South Mountain, Friday, 27 November
Light rain. High 51°, low 34°.
Pressure30.36 inHg
Wind10.7 mph S
Humidity66%
Visibility—
Dew point32°
Sat, 2856° / 49°0.06
56 °
South Mountain, Saturday, 28 November
Light rain. High 56°, low 49°.
Pressure29.97 inHg
Wind7.6 mph S
Humidity97%
Visibility—
Dew point52°
Sun, 2947° / 32°0
47 °
South Mountain, Sunday, 29 November
Clear. High 47°, low 32°.
Pressure30.00 inHg
Wind16.5 mph NW
Humidity68%
Visibility—
Dew point34°
Mon, 3038° / 27°0
38 °
South Mountain, Monday, 30 November
Overcast. High 38°, low 27°.
Pressure30.27 inHg
Wind7.2 mph NE
Humidity46%
Visibility—
Dew point15°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0146° / 33°0.14
46 °
South Mountain, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.14 in
Chance of precipitation35%
Record high69° (2006)
Record low13° (1967)
Wed, 0246° / 32°0.11
46 °
South Mountain, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.11 in
Chance of precipitation30%
Record high62° (1970)
Record low6° (1967)
Thu, 0346° / 32°0.12
46 °
South Mountain, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.12 in
Chance of precipitation25%
Record high68° (1998)
Record low6° (1971)
Fri, 0446° / 32°0.09
46 °
South Mountain, Friday, 4 December
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.09 in
Chance of precipitation25%
Record high72° (1982)
Record low12° (1971)
Sat, 0544° / 32°0.13
44 °
South Mountain, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.13 in
Chance of precipitation35%
Record high70° (2001)
Record low14° (1971)
Sun, 0645° / 32°0.11
45 °
South Mountain, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.11 in
Chance of precipitation30%
Record high72° (1998)
Record low15° (2002)
Mon, 0743° / 31°0.09
43 °
South Mountain, Monday, 7 December
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.09 in
Chance of precipitation23%
Record high69° (1998)
Record low3° (2002)
Tue, 0843° / 31°0.07
43 °
South Mountain, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.07 in
Chance of precipitation23%
Record high66° (1980)
Record low13° (2003)
Wed, 0943° / 31°0.16
43 °
South Mountain, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.16 in
Chance of precipitation38%
Record high66° (1966)
Record low10° (1989)
Thu, 1044° / 32°0.15
44 °
South Mountain, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.15 in
Chance of precipitation35%
Record high67° (1966)
Record low13° (1977)
Fri, 1143° / 31°0.15
43 °
South Mountain, Friday, 11 December
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.15 in
Chance of precipitation28%
Record high62° (2021)
Record low9° (1962)
Sat, 1243° / 30°0.07
43 °
South Mountain, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.07 in
Chance of precipitation25%
Record high65° (2015)
Record low3° (1962)
Sun, 1343° / 31°0.12
43 °
South Mountain, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.12 in
Chance of precipitation30%
Record high67° (2015)
Record low2° (1962)
Mon, 1442° / 31°0.13
42 °
South Mountain, Monday, 14 December
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.13 in
Chance of precipitation32%
Record high68° (2015)
Record low5° (1962)
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.