10-day forecast for Cornwall, CT: 29° to 70°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
70°
Best day: Tuesday, October 13
55° · 0.69 in
Worst day: Sunday, October 11
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 1155° / 41°0.69
Morning45°feels 41°
Afternoon55°feels 54°
Evening49°feels 44°
Overnight41°feels 39°
55 °
Cornwall, Sunday, 11 October
Rain. High 55°, low 41°.
Pressure30.36 inHg
Wind5.9 mph SE
Humidity81%
Visibility3.3 mi
Dew point48°
Mon, 1268° / 44°0.06
Morning47°feels 42°
Afternoon68°feels 68°
Evening58°feels 57°
Overnight44°feels 39°
68 °
Cornwall, Monday, 12 October
Light rain. High 68°, low 44°.
Pressure29.77 inHg
Wind9.4 mph N
Humidity74%
Visibility6.2 mi
Dew point56°
Tue, 1370° / 50°0.01
Morning52°feels 52°
Afternoon70°feels 70°
Evening63°feels 63°
Overnight54°feels 53°
70 °
Cornwall, Tuesday, 13 October
Light rain. High 70°, low 50°.
Pressure29.91 inHg
Wind8.5 mph S
Humidity69%
Visibility6.2 mi
Dew point57°
Wed, 1467° / 58°0
Morning62°feels 62°
Afternoon67°feels 67°
Evening65°feels 65°
Overnight63°feels 63°
67 °
Cornwall, Wednesday, 14 October
Overcast. High 67°, low 58°.
Pressure29.85 inHg
Wind7.7 mph NW
Humidity81%
Visibility6.2 mi
Dew point60°
Thu, 1557° / 44°0
Morning54°feels 53°
Afternoon55°feels 53°
Evening53°feels 51°
Overnight46°feels 46°
57 °
Cornwall, Thursday, 15 October
Overcast. High 57°, low 44°.
Pressure30.18 inHg
Wind13 mph N
Humidity63%
Visibility—
Dew point42°
Fri, 1662° / 41°0.56
Morning44°feels 43°
Afternoon49°feels 47°
Evening58°feels 58°
Overnight58°feels 59°
62 °
Cornwall, Friday, 16 October
Rain. High 62°, low 41°.
Pressure30.03 inHg
Wind10 mph SE
Humidity88%
Visibility—
Dew point44°
Sat, 1763° / 44°0.2
Morning59°feels 59°
Afternoon53°feels 52°
Evening51°feels 50°
Overnight48°feels 45°
63 °
Cornwall, Saturday, 17 October
Light rain. High 63°, low 44°.
Pressure29.88 inHg
Wind8.6 mph SW
Humidity96%
Visibility—
Dew point53°
Sun, 1852° / 37°0.17
Morning45°feels 41°
Afternoon47°feels 42°
Evening44°feels 38°
Overnight38°feels 31°
52 °
Cornwall, Sunday, 18 October
Rain. High 52°, low 37°.
Pressure29.97 inHg
Wind12.7 mph NW
Humidity70%
Visibility—
Dew point37°
Mon, 1944° / 29°0
Morning36°feels 28°
Afternoon40°feels 33°
Evening41°feels 35°
Overnight30°feels 24°
44 °
Cornwall, Monday, 19 October
Clear. High 44°, low 29°.
Pressure30.47 inHg
Wind13.1 mph N
Humidity58%
Visibility—
Dew point25°
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, CT 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.