10-day forecast for Cornwall, PA: 33° to 78°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
78°
Best day: Tuesday, October 13
64° · 1.57 in
Worst day: Sunday, October 11
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 1164° / 51°1.57
Morning53°feels 52°
Afternoon64°feels 64°
Evening58°feels 58°
Overnight51°feels 50°
64 °
Cornwall, Sunday, 11 October
Heavy rain. High 64°, low 51°.
Pressure30.15 inHg
Wind13.2 mph E
Humidity96%
Visibility1.7 mi
Dew point59°
Mon, 1273° / 52°0.6
Morning53°feels 52°
Afternoon73°feels 73°
Evening62°feels 62°
Overnight54°feels 54°
73 °
Cornwall, Monday, 12 October
Heavy rain. High 73°, low 52°.
Pressure29.83 inHg
Wind10.4 mph N
Humidity70%
Visibility6.2 mi
Dew point59°
Tue, 1378° / 55°0
Morning56°feels 56°
Afternoon78°feels 78°
Evening71°feels 72°
Overnight58°feels 58°
78 °
Cornwall, Tuesday, 13 October
Clear. High 78°, low 55°.
Pressure29.91 inHg
Wind6.8 mph S
Humidity71%
Visibility6.2 mi
Dew point63°
Wed, 1477° / 65°0.02
Morning66°feels 66°
Afternoon77°feels 78°
Evening72°feels 73°
Overnight66°feels 67°
77 °
Cornwall, Wednesday, 14 October
Light rain. High 77°, low 65°.
Pressure29.91 inHg
Wind10.3 mph W
Humidity69%
Visibility6.2 mi
Dew point65°
Thu, 1565° / 50°0
Morning60°feels 60°
Afternoon62°feels 60°
Evening60°feels 59°
Overnight52°feels 51°
65 °
Cornwall, Thursday, 15 October
Overcast. High 65°, low 50°.
Pressure30.24 inHg
Wind11.5 mph N
Humidity62%
Visibility—
Dew point48°
Fri, 1667° / 51°0.33
Morning53°feels 52°
Afternoon58°feels 58°
Evening66°feels 67°
Overnight60°feels 60°
67 °
Cornwall, Friday, 16 October
Rain. High 67°, low 51°.
Pressure30.00 inHg
Wind9.5 mph SW
Humidity95%
Visibility—
Dew point55°
Sat, 1760° / 47°0.26
Morning57°feels 57°
Afternoon50°feels 49°
Evening47°feels 46°
Overnight49°feels 47°
60 °
Cornwall, Saturday, 17 October
Light rain. High 60°, low 47°.
Pressure29.94 inHg
Wind10.7 mph W
Humidity89%
Visibility—
Dew point49°
Sun, 1849° / 36°0
Morning40°feels 32°
Afternoon47°feels 40°
Evening44°feels 37°
Overnight37°feels 28°
49 °
Cornwall, Sunday, 18 October
Clear. High 49°, low 36°.
Pressure30.09 inHg
Wind17.5 mph NW
Humidity57%
Visibility—
Dew point31°
Mon, 1948° / 33°0
Morning37°feels 29°
Afternoon43°feels 36°
Evening45°feels 40°
Overnight34°feels 28°
48 °
Cornwall, Monday, 19 October
Clear. High 48°, low 33°.
Pressure30.59 inHg
Wind16.3 mph N
Humidity44%
Visibility—
Dew point21°
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 Cornwall, 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.