10-day forecast for South Mountain, PA: 58° to 98°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
98°
Best day: Sunday, August 16
87° · 0.4 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1084° / 68°0
Morning72°feels 72°
Afternoon84°feels 84°
Evening77°feels 77°
Overnight71°feels 71°
84 °
South Mountain, Monday, 10 August
Overcast. High 84°, low 68°.
Pressure30.00 inHg
Wind12.1 mph W
Humidity47%
Visibility6.2 mi
Dew point64°
Tue, 1187° / 65°0.4
Morning67°feels 68°
Afternoon85°feels 85°
Evening75°feels 75°
Overnight69°feels 70°
87 °
South Mountain, Tuesday, 11 August
Rain. High 87°, low 65°.
Pressure29.94 inHg
Wind8.9 mph NW
Humidity56%
Visibility6.2 mi
Dew point64°
Wed, 1281° / 65°0.12
Morning67°feels 68°
Afternoon74°feels 74°
Evening71°feels 72°
Overnight66°feels 67°
81 °
South Mountain, Wednesday, 12 August
Rain. High 81°, low 65°.
Pressure29.80 inHg
Wind12.4 mph NW
Humidity62%
Visibility6.2 mi
Dew point65°
Thu, 1382° / 63°0
Morning67°feels 68°
Afternoon82°feels 81°
Evening68°feels 67°
Overnight64°feels 65°
82 °
South Mountain, Thursday, 13 August
Mostly clear. High 82°, low 63°.
Pressure29.94 inHg
Wind11.5 mph NW
Humidity44%
Visibility6.2 mi
Dew point56°
Fri, 1479° / 62°0
Morning68°feels 67°
Afternoon73°feels 72°
Evening66°feels 65°
Overnight63°feels 62°
79 °
South Mountain, Friday, 14 August
Overcast. High 79°, low 62°.
Pressure30.09 inHg
Wind5.4 mph SW
Humidity49%
Visibility—
Dew point52°
Sat, 1575° / 58°0
Morning66°feels 65°
Afternoon74°feels 74°
Evening68°feels 68°
Overnight66°feels 66°
75 °
South Mountain, Saturday, 15 August
Overcast. High 75°, low 58°.
Pressure30.15 inHg
Wind4.9 mph S
Humidity55%
Visibility—
Dew point56°
Sun, 1698° / 64°0.08
Morning76°feels 77°
Afternoon95°feels 96°
Evening82°feels 84°
Overnight76°feels 76°
98 °
South Mountain, Sunday, 16 August
Light rain. High 98°, low 64°.
Pressure29.80 inHg
Wind20.5 mph W
Humidity28%
Visibility—
Dew point55°
Mon, 1780° / 64°0
Morning68°feels 67°
Afternoon77°feels 76°
Evening68°feels 68°
Overnight64°feels 63°
80 °
South Mountain, Monday, 17 August
Partly cloudy. High 80°, low 64°.
Pressure30.00 inHg
Wind12.2 mph NW
Humidity37%
Visibility—
Dew point48°
Tue, 1888° / 61°0.02
Morning72°feels 71°
Afternoon86°feels 84°
Evening78°feels 78°
Overnight72°feels 72°
88 °
South Mountain, Tuesday, 18 August
Light rain. High 88°, low 61°.
Pressure30.00 inHg
Wind12.7 mph S
Humidity34%
Visibility—
Dew point53°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in South Mountain, PA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.