10-day forecast for Upper Merion, PA: 40° to 74°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
72°
Best day: Wednesday, November 4
51° · 1.34 in
Worst day: Monday, November 9
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 0369° / 41°0
Morning51°feels 50°
Afternoon68°feels 67°
Evening53°feels 52°
Overnight43°feels 43°
69 °
Upper Merion, Tuesday, 3 November
Overcast. High 69°, low 41°.
Pressure30.30 inHg
Wind5.4 mph SW
Humidity51%
Visibility6.2 mi
Dew point48°
Wed, 0472° / 45°0
Morning56°feels 55°
Afternoon72°feels 71°
Evening62°feels 62°
Overnight48°feels 45°
72 °
Upper Merion, Wednesday, 4 November
Clear. High 72°, low 45°.
Pressure30.15 inHg
Wind8.1 mph S
Humidity60%
Visibility6.2 mi
Dew point55°
Thu, 0574° / 58°0.05
Morning60°feels 60°
Afternoon74°feels 74°
Evening67°feels 68°
Overnight59°feels 59°
74 °
Upper Merion, Thursday, 5 November
Light rain. High 74°, low 58°.
Pressure29.94 inHg
Wind8.2 mph S
Humidity77%
Visibility6.2 mi
Dew point60°
Fri, 0665° / 60°1.04
Morning64°feels 64°
Afternoon65°feels 65°
Evening64°feels 64°
Overnight64°feels 65°
65 °
Upper Merion, Friday, 6 November
Rain. High 65°, low 60°.
Pressure29.85 inHg
Wind1.7 mph SE
Humidity98%
Visibility1.9 mi
Dew point64°
Sat, 0764° / 56°0.01
Morning60°feels 60°
Afternoon61°feels 61°
Evening63°feels 62°
Overnight57°feels 56°
64 °
Upper Merion, Saturday, 7 November
Light rain. High 64°, low 56°.
Pressure29.83 inHg
Wind7.1 mph N
Humidity91%
Visibility—
Dew point58°
Sun, 0858° / 49°0
Morning52°feels 51°
Afternoon54°feels 52°
Evening56°feels 53°
Overnight51°feels 49°
58 °
Upper Merion, Sunday, 8 November
Overcast. High 58°, low 49°.
Pressure29.91 inHg
Wind7.4 mph W
Humidity65%
Visibility—
Dew point42°
Mon, 0951° / 46°1.34
Morning49°feels 47°
Afternoon49°feels 45°
Evening49°feels 46°
Overnight47°feels 42°
51 °
Upper Merion, Monday, 9 November
Heavy rain. High 51°, low 46°.
Pressure29.68 inHg
Wind13.4 mph W
Humidity92%
Visibility—
Dew point47°
Tue, 1051° / 44°0
Morning45°feels 38°
Afternoon47°feels 42°
Evening50°feels 46°
Overnight46°feels 40°
51 °
Upper Merion, Tuesday, 10 November
Overcast. High 51°, low 44°.
Pressure29.74 inHg
Wind14.5 mph W
Humidity65%
Visibility—
Dew point35°
Wed, 1153° / 44°0
Morning47°feels 42°
Afternoon51°feels 48°
Evening52°feels 49°
Overnight46°feels 42°
53 °
Upper Merion, Wednesday, 11 November
Partly cloudy. High 53°, low 44°.
Pressure29.88 inHg
Wind15 mph W
Humidity49%
Visibility—
Dew point32°
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.