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Canada › Ontario › Cornwall

Cornwall, ON Weather

Current weather

5:00 PM
58°F
Light drizzle
High 63° · Low 45° · 40%
Wind
NE 4 mph
Wind gusts
17 mph
Humidity
74%
Air quality (AQHI)
1.9 · Low risk
UV index
0 · Low
More details
Dew point
50°F
Pressure
29.83 inHg ↗ rising
Visibility
1 mi
Sunrise
6:44 AM
Sunset
4:40 PM
Daylight
9 h 56 min
Observed at Saint-Anicet, 5:00 PM EST · Environment and Climate Change Canada

Hourly forecast

Hourly →
  • Now57°39%
  • 6 PM61°40%
  • 7 PM59°40%
  • 8 PM57°40%
  • 9 PM57°40%
  • 10 PM55°40%
  • 11 PM54°40%
  • Sat
  • 12 AM50°40%
  • 1 AM48°40%
  • 2 AM46°40%
  • 3 AM46°40%
  • 4 AM45°40%
  • 5 AM45°40%
  • 6 AM45°40%
  • 7 AM45°40%
  • 8 AM46°40%
  • 9 AM46°40%
  • 10 AM48°40%
  • 11 AM48°40%
  • 12 PM50°40%
  • 1 PM50°40%
  • 2 PM50°40%
  • 3 PM52°40%
  • 4 PM52°40%

14-day forecast

Full 14-day →
TonightNov 663°45°ShowersChance of showers40%

Day

Wind
NE 19 mph
Wind gusts
31 mph
Precipitation
40% · 0.04 in
UV index (max)
2 Low
Air quality (AQHI)
2 · Low risk

Night

Cloudy with 40 percent chance of showers. Wind becoming northeast 30 km/h gusting to 50 early this evening. Low 7.

Low
45°
Wind
NE 19 mph
Precipitation
40%
Sunrise6:44 AM
Sunset4:40 PM
Daylight9 h 56 min
Normal45° / 30°
SatNov 752°43°Chance of showersChance of showers60%

Day

Cloudy with 40 percent chance of showers. Wind northeast 30 km/h gusting to 50 becoming light early in the afternoon. High 11. UV index 1 or low.

Wind
NE 19 mph
Wind gusts
31 mph
Precipitation
40% · 0.18 in
UV index (max)
1 Low
Air quality (AQHI)
2 · Low risk

Night

Cloudy. 60 percent chance of showers in the evening and after midnight. Low 6.

Low
43°
Wind
NE 9 mph
Precipitation
60%
Sunrise6:44 AM
Sunset4:40 PM
Daylight9 h 56 min
SunNov 848°37°Chance of showersChance of showers40%

Day

Cloudy with 30 percent chance of showers. High 9.

Precipitation
30% · 0.05 in
UV index (max)
2 Low

Night

Cloudy with 40 percent chance of showers. Low plus 3.

Low
37°
Precipitation
40%
Sunrise6:45 AM
Sunset4:39 PM
Daylight9 h 53 min
MonNov 945°37°Chance of showersCloudy periods30%

Day

A mix of sun and cloud with 30 percent chance of showers. High 7.

Precipitation
30% · 0.07 in
UV index (max)
2 Low

Night

Cloudy periods. Low plus 3.

Low
37°
Sunrise6:47 AM
Sunset4:38 PM
Daylight9 h 51 min
TueNov 1050°37°Chance of showersChance of showers30%

Day

A mix of sun and cloud with 30 percent chance of showers. High 10.

Precipitation
30% · 0.24 in
UV index (max)
2 Low

Night

Cloudy periods with 30 percent chance of showers. Low plus 3.

Low
37°
Precipitation
30%
Sunrise6:48 AM
Sunset4:37 PM
Daylight9 h 48 min
WedNov 1145°28°Chance of showersCloudy periods30%

Day

A mix of sun and cloud with 30 percent chance of showers. High 7.

Precipitation
30% · 0.07 in
UV index (max)
2 Low

Night

Cloudy periods. Low minus 2.

Low
28°
Sunrise6:49 AM
Sunset4:36 PM
Daylight9 h 46 min
ThuNov 1239°31°A mix of sun and cloud17%

Day

A mix of sun and cloud. High plus 4.

Precipitation
17% · 0 in
UV index (max)
2 Low

Night

Low 31.

Low
31°
Sunrise6:51 AM
Sunset4:34 PM
Daylight9 h 43 min
Days 8–14 · trend, lower confidence
FriNov 1340°30°Partly cloudyNight low 30°29%

Day

Partly cloudy. High 40.

Wind
W 4 mph
Wind gusts
11 mph
Precipitation
29% · 0.01 in
UV index (max)
2 Low

Night

Low 30.

Low
30°
Sunrise6:52 AM
Sunset4:33 PM
Daylight9 h 41 min
SourceExtended outlook
SatNov 1439°29°Partly cloudyNight low 29°22%

Day

Partly cloudy. High 39.

Wind
N 4 mph
Wind gusts
10 mph
Precipitation
22% · 0 in
UV index (max)
2 Low

Night

Low 29.

Low
29°
Sunrise6:53 AM
Sunset4:32 PM
Daylight9 h 38 min
SourceExtended outlook
SunNov 1541°33°Mostly cloudyNight low 33°55%

Day

Mostly cloudy. High 41.

Wind
N 6 mph
Wind gusts
19 mph
Precipitation
55% · 0.02 in
UV index (max)
1 Low

Night

Low 33.

Low
33°
Sunrise6:55 AM
Sunset4:31 PM
Daylight9 h 36 min
SourceExtended outlook
MonNov 1643°31°Partly cloudyNight low 31°17%

Day

Partly cloudy. High 43.

Wind
W 7 mph
Wind gusts
20 mph
Precipitation
17% · 0 in
UV index (max)
3 Moderate

Night

Low 31.

Low
31°
Sunrise6:56 AM
Sunset4:30 PM
Daylight9 h 34 min
SourceExtended outlook
TueNov 1746°33°Partly cloudyNight low 33°16%

Day

Partly cloudy. High 46.

Wind
SW 7 mph
Wind gusts
21 mph
Precipitation
16% · 0 in
UV index (max)
3 Moderate

Night

Low 33.

Low
33°
Sunrise6:58 AM
Sunset4:29 PM
Daylight9 h 31 min
SourceExtended outlook
WedNov 1844°32°Partly cloudyNight low 32°25%

Day

Partly cloudy. High 44.

Wind
W 3 mph
Wind gusts
13 mph
Precipitation
25% · 0.01 in
UV index (max)
3 Moderate

Night

Low 32.

Low
32°
Sunrise6:59 AM
Sunset4:28 PM
Daylight9 h 29 min
SourceExtended outlook
ThuNov 1952°33°Partly cloudyNight low 33°68%

Day

Partly cloudy. High 52.

Wind
SW 13 mph
Wind gusts
31 mph
Precipitation
68% · 0.10 in
UV index (max)
4 Moderate

Night

Low 33.

Low
33°
Sunrise7:00 AM
Sunset4:28 PM
Daylight9 h 27 min
SourceExtended outlook
Sunrise6:44 AM
Sunset4:40 PM
Daylight9 h 56 min
MoonWaning Crescent6% lit · rise 3:56 AM · set 3:06 PM

Pollen today · Cornwall

TreesNonenone in the air
GrassLow<1 grains/m³
WeedsLow<1 grains/m³ · Ragweed
Sat: weeds low · Sun: weeds low · Mon: weeds low
Model estimate from WeatherAPI.com — pollen grains per m³ of air; levels on the National Allergy Bureau scale.

Climate · monthly normals

Full climate →
MonthJanFebMarAprMayJunJulAugSepOctNovDec
High24°28°38°53°67°76°81°78°70°56°44°31°
Low9°13°22°36°47°57°62°60°52°41°31°19°
Precip2.99 in2.36 in2.44 in3.19 in3.46 in3.82 in3.90 in3.50 in3.86 in3.66 in3.62 in2.99 in
ECCC

Activities today

Derived from the forecast
Laundry dayPoorLine-drying weather
GrillingFairFire up the grill
RunningFairLace up outside
PatioPoorDinner outdoors
Forecast: Environment and Climate Change Canada (Cornwall - Lancaster), issued 3:30 PM · Days 8–14: WeatherAPI.com · weather.gc.ca · 45.0181°N, 74.7281°W · Elevation 194 ft · Population 48,821 · Time zone America/Toronto