10-day forecast for Cornwall, PA: 34° 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
66° · 0.83 in
Worst day: Friday, October 16
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1069° / 45°0
Morning49°feels 47°
Afternoon69°feels 68°
Evening55°feels 53°
Overnight50°feels 50°
69 °
Cornwall, Saturday, 10 October
Overcast. High 69°, low 45°.
Pressure30.42 inHg
Wind8.3 mph E
Humidity47%
Visibility6.2 mi
Dew point46°
Sun, 1165° / 50°0.75
Morning53°feels 52°
Afternoon65°feels 66°
Evening62°feels 62°
Overnight50°feels 46°
65 °
Cornwall, Sunday, 11 October
Rain. High 65°, low 50°.
Pressure30.12 inHg
Wind11.6 mph E
Humidity97%
Visibility2.0 mi
Dew point61°
Mon, 1271° / 57°0.21
Morning59°feels 59°
Afternoon70°feels 70°
Evening62°feels 62°
Overnight60°feels 60°
71 °
Cornwall, Monday, 12 October
Rain. High 71°, low 57°.
Pressure29.83 inHg
Wind13.2 mph NW
Humidity69%
Visibility6.2 mi
Dew point58°
Tue, 1378° / 56°0
Morning57°feels 57°
Afternoon78°feels 79°
Evening72°feels 72°
Overnight57°feels 57°
78 °
Cornwall, Tuesday, 13 October
Partly cloudy. High 78°, low 56°.
Pressure29.85 inHg
Wind6.4 mph SW
Humidity70%
Visibility6.2 mi
Dew point62°
Wed, 1472° / 62°0
Morning67°feels 68°
Afternoon71°feels 71°
Evening69°feels 69°
Overnight63°feels 62°
72 °
Cornwall, Wednesday, 14 October
Overcast. High 72°, low 62°.
Pressure29.91 inHg
Wind9.6 mph W
Humidity74%
Visibility—
Dew point62°
Thu, 1563° / 51°0
Morning55°feels 54°
Afternoon60°feels 58°
Evening59°feels 57°
Overnight51°feels 49°
63 °
Cornwall, Thursday, 15 October
Mostly clear. High 63°, low 51°.
Pressure30.24 inHg
Wind9.9 mph N
Humidity55%
Visibility—
Dew point43°
Fri, 1666° / 48°0.83
Morning51°feels 47°
Afternoon55°feels 55°
Evening66°feels 66°
Overnight61°feels 60°
66 °
Cornwall, Friday, 16 October
Rain. High 66°, low 48°.
Pressure29.97 inHg
Wind12.7 mph SE
Humidity99%
Visibility—
Dew point52°
Sat, 1765° / 42°0.35
Morning62°feels 62°
Afternoon58°feels 58°
Evening52°feels 50°
Overnight46°feels 42°
65 °
Cornwall, Saturday, 17 October
Rain. High 65°, low 42°.
Pressure29.88 inHg
Wind14.3 mph W
Humidity93%
Visibility—
Dew point57°
Sun, 1848° / 34°0
Morning46°feels 39°
Afternoon45°feels 38°
Evening45°feels 40°
Overnight37°feels 32°
48 °
Cornwall, Sunday, 18 October
Overcast. High 48°, low 34°.
Pressure30.30 inHg
Wind18.1 mph N
Humidity64%
Visibility—
Dew point33°
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.