10-day forecast for Upper Merion, PA: 39° to 75°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Wednesday, November 4
71° · 0.13 in
Worst day: Friday, November 6
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 0368° / 41°0
Morning51°feels 50°
Afternoon68°feels 67°
Evening54°feels 53°
Overnight46°feels 46°
68 °
Upper Merion, Tuesday, 3 November
Overcast. High 68°, low 41°.
Pressure30.30 inHg
Wind6.5 mph SW
Humidity52%
Visibility6.2 mi
Dew point49°
Wed, 0473° / 46°0
Morning54°feels 54°
Afternoon73°feels 72°
Evening62°feels 62°
Overnight49°feels 46°
73 °
Upper Merion, Wednesday, 4 November
Clear. High 73°, low 46°.
Pressure30.12 inHg
Wind8.6 mph S
Humidity54%
Visibility6.2 mi
Dew point53°
Thu, 0575° / 58°0.02
Morning62°feels 62°
Afternoon73°feels 73°
Evening68°feels 68°
Overnight59°feels 59°
75 °
Upper Merion, Thursday, 5 November
Light rain. High 75°, low 58°.
Pressure29.91 inHg
Wind14.8 mph SW
Humidity70%
Visibility6.2 mi
Dew point62°
Fri, 0671° / 57°0.13
Morning63°feels 64°
Afternoon69°feels 70°
Evening61°feels 61°
Overnight64°feels 65°
71 °
Upper Merion, Friday, 6 November
Light rain. High 71°, low 57°.
Pressure29.85 inHg
Wind1.9 mph N
Humidity79%
Visibility6.2 mi
Dew point62°
Sat, 0767° / 50°0
Morning55°feels 54°
Afternoon62°feels 62°
Evening62°feels 61°
Overnight53°feels 52°
67 °
Upper Merion, Saturday, 7 November
Clear. High 67°, low 50°.
Pressure29.88 inHg
Wind8.9 mph NW
Humidity67%
Visibility—
Dew point50°
Sun, 0859° / 45°0
Morning51°feels 47°
Afternoon55°feels 53°
Evening55°feels 52°
Overnight46°feels 42°
59 °
Upper Merion, Sunday, 8 November
Mostly clear. High 59°, low 45°.
Pressure29.97 inHg
Wind8.2 mph NW
Humidity63%
Visibility—
Dew point42°
Mon, 0954° / 39°0
Morning42°feels 38°
Afternoon49°feels 46°
Evening53°feels 50°
Overnight45°feels 43°
54 °
Upper Merion, Monday, 9 November
Clear. High 54°, low 39°.
Pressure30.18 inHg
Wind6.3 mph N
Humidity33%
Visibility—
Dew point19°
Tue, 1060° / 43°0
Morning46°feels 44°
Afternoon54°feels 50°
Evening58°feels 55°
Overnight50°feels 47°
60 °
Upper Merion, Tuesday, 10 November
Clear. High 60°, low 43°.
Pressure30.18 inHg
Wind7 mph W
Humidity35%
Visibility—
Dew point24°
Wed, 1157° / 42°0
Morning49°feels 46°
Afternoon52°feels 50°
Evening52°feels 49°
Overnight43°feels 38°
57 °
Upper Merion, Wednesday, 11 November
Clear. High 57°, low 42°.
Pressure30.12 inHg
Wind13.4 mph N
Humidity59%
Visibility—
Dew point37°
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 Merion, 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.