10-day forecast for Upper Macungie, PA: 52° to 87°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
86°
Best day: Sunday, August 9
82° · 0.43 in
Worst day: Wednesday, August 12
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0986° / 70°0
Morning74°feels 76°
Afternoon85°feels 85°
Evening74°feels 74°
Overnight70°feels 71°
86 °
Upper Macungie, Sunday, 9 August
Light rain. High 86°, low 70°.
Pressure30.00 inHg
Wind8 mph W
Humidity50%
Visibility6.2 mi
Dew point65°
Mon, 1085° / 69°0.02
Morning73°feels 74°
Afternoon81°feels 84°
Evening78°feels 79°
Overnight70°feels 71°
85 °
Upper Macungie, Monday, 10 August
Light rain. High 85°, low 69°.
Pressure30.00 inHg
Wind10.2 mph W
Humidity57%
Visibility6.2 mi
Dew point67°
Tue, 1187° / 68°0.19
Morning72°feels 73°
Afternoon87°feels 90°
Evening77°feels 77°
Overnight70°feels 72°
87 °
Upper Macungie, Tuesday, 11 August
Rain. High 87°, low 68°.
Pressure29.91 inHg
Wind4.4 mph W
Humidity62%
Visibility6.2 mi
Dew point69°
Wed, 1282° / 68°0.43
Morning69°feels 70°
Afternoon81°feels 83°
Evening73°feels 74°
Overnight69°feels 70°
82 °
Upper Macungie, Wednesday, 12 August
Rain. High 82°, low 68°.
Pressure29.77 inHg
Wind8.8 mph W
Humidity63%
Visibility6.2 mi
Dew point65°
Thu, 1383° / 63°0
Morning74°feels 75°
Afternoon80°feels 81°
Evening66°feels 65°
Overnight64°feels 64°
83 °
Upper Macungie, Thursday, 13 August
Overcast. High 83°, low 63°.
Pressure29.77 inHg
Wind15 mph NW
Humidity51%
Visibility—
Dew point61°
Fri, 1476° / 60°0
Morning66°feels 65°
Afternoon72°feels 71°
Evening64°feels 62°
Overnight61°feels 60°
76 °
Upper Macungie, Friday, 14 August
Clear. High 76°, low 60°.
Pressure29.97 inHg
Wind8.5 mph NW
Humidity39%
Visibility—
Dew point46°
Sat, 1575° / 52°0
Morning63°feels 62°
Afternoon73°feels 72°
Evening62°feels 61°
Overnight57°feels 56°
75 °
Upper Macungie, Saturday, 15 August
Clear. High 75°, low 52°.
Pressure30.18 inHg
Wind12.6 mph N
Humidity38%
Visibility—
Dew point45°
Sun, 1677° / 52°0
Morning63°feels 62°
Afternoon75°feels 74°
Evening65°feels 64°
Overnight59°feels 58°
77 °
Upper Macungie, Sunday, 16 August
Clear. High 77°, low 52°.
Pressure30.27 inHg
Wind5.6 mph NE
Humidity37%
Visibility—
Dew point46°
Mon, 1779° / 56°0.02
Morning67°feels 67°
Afternoon78°feels 78°
Evening69°feels 70°
Overnight66°feels 66°
79 °
Upper Macungie, Monday, 17 August
Light rain. High 79°, low 56°.
Pressure30.15 inHg
Wind9.3 mph S
Humidity54%
Visibility—
Dew point59°
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 Upper Macungie, 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.