Cornwall, ON Weather

04:34 Thursday Artboard
Overcast Overcast -2° Feels like -6° Last Quarter Last Quarter Illuminated: 79%
  • Today 19 Dec. Partly cloudy / -11° Calm 20 - 38 km/h
  • Tomorrow 20 Dec. Snow 40% 0.2 mm -8° / -11° Calm 16 - 33 km/h
  • Saturday 21 Dec. Snow 30% 0.1 mm -10° / -19° Calm 18 - 35 km/h
  • Sunday 22 Dec. Scattered clouds -15° / -21° Calm 12 - 27 km/h
  • Monday 23 Dec. Scattered clouds -7° / -20° Calm 8 - 14 km/h
  • Tuesday 24 Dec. Partly cloudy -6° / -12° Calm 10 - 22 km/h
  • Wednesday 25 Dec. Partly cloudy -4° / -10° Calm 10 - 23 km/h

Weather Forecast for Cornwall, ON Today

, 19 December

Tomorrow

, 20 December
05:00 Overcast -2° Overcast
Feels Like -6°
Calm West 13 - 26 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 95%
  • Dew Point Dew Point -3 °C
  • Clouds Clouds 100%
  • Snow depth Snow depth 6 cm
  • Feels Like Feels Like -6 °C
  • Wind Wind - Average 13 km/h
  • Pressure Pressure 1019 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 26 km/h
  • Visibility Visibility 16 km
06:00 Overcast -1° Overcast
Feels Like -6°
Calm Northwest 16 - 29 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 92%
  • Dew Point Dew Point -2 °C
  • Clouds Clouds 100%
  • Snow depth Snow depth 6 cm
  • Feels Like Feels Like -6 °C
  • Wind Wind - Average 16 km/h
  • Pressure Pressure 1020 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 29 km/h
  • Visibility Visibility 16 km
07:00 Partly cloudy -2° Partly cloudy
Feels Like -8°
Calm Northwest 20 - 37 km/h
UV Index 0 Low SPF: no
  • Rain Rain 10% 0 mm
  • Humidity Humidity 85%
  • Dew Point Dew Point -5 °C
  • Clouds Clouds 83%
  • Snow depth Snow depth 6 cm
  • Feels Like Feels Like -8 °C
  • Wind Wind - Average 20 km/h
  • Pressure Pressure 1022 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 37 km/h
  • Visibility Visibility 40 km
Scattered clouds 08:00 Scattered clouds -4° Scattered clouds
Feels Like -10°
Calm Northwest 18 - 38 km/h
UV Index 0 Low SPF: no
Scattered clouds 08:00 Scattered clouds -4° Partly cloudy
Feels Like -10°
Calm Northwest 18 - 38 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 82%
  • Dew Point Dew Point -7 °C
  • Clouds Clouds 19%
  • Snow depth Snow depth 6 cm
  • Feels Like Feels Like -10 °C
  • Wind Wind - Average 18 km/h
  • Pressure Pressure 1024 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 38 km/h
  • Visibility Visibility 45 km
09:00 Clear -6° Clear
Feels Like -11°
Calm Northwest 17 - 35 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 77%
  • Dew Point Dew Point -9 °C
  • Clouds Clouds 6%
  • Snow depth Snow depth 6 cm
  • Feels Like Feels Like -11 °C
  • Wind Wind - Average 17 km/h
  • Pressure Pressure 1026 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 35 km/h
  • Visibility Visibility 50 km
10:00 Clear -6° Clear
Feels Like -11°
Calm Northwest 14 - 38 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 74%
  • Dew Point Dew Point -10 °C
  • Clouds Clouds 5%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -11 °C
  • Wind Wind - Average 14 km/h
  • Pressure Pressure 1027 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 38 km/h
  • Visibility Visibility 50 km
Scattered clouds 11:00 Scattered clouds -6° Scattered clouds
Feels Like -11°
Calm Northwest 14 - 29 km/h
UV Index 1 Low SPF: no
Scattered clouds 11:00 Scattered clouds -6° Scattered clouds
Feels Like -11°
Calm Northwest 14 - 29 km/h
UV Index 1 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 74%
  • Dew Point Dew Point -10 °C
  • Clouds Clouds 12%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -11 °C
  • Wind Wind - Average 14 km/h
  • Pressure Pressure 1027 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 29 km/h
  • Visibility Visibility 45 km
12:00 Scattered clouds -6° Scattered clouds
Feels Like -11°
Calm Northwest 15 - 31 km/h
UV Index 1 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 72%
  • Dew Point Dew Point -10 °C
  • Clouds Clouds 14%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -11 °C
  • Wind Wind - Average 15 km/h
  • Pressure Pressure 1027 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 31 km/h
  • Visibility Visibility 50 km
13:00 Scattered clouds -6° Scattered clouds
Feels Like -12°
Calm Northwest 14 - 31 km/h
UV Index 1 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 69%
  • Dew Point Dew Point -11 °C
  • Clouds Clouds 18%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -12 °C
  • Wind Wind - Average 14 km/h
  • Pressure Pressure 1027 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 31 km/h
  • Visibility Visibility 50 km
Scattered clouds 14:00 Scattered clouds -7° Scattered clouds
Feels Like -11°
Calm Northwest 11 - 29 km/h
UV Index 0 Low SPF: no
Scattered clouds 14:00 Scattered clouds -7° Scattered clouds
Feels Like -11°
Calm Northwest 11 - 29 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 68%
  • Dew Point Dew Point -12 °C
  • Clouds Clouds 32%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -11 °C
  • Wind Wind - Average 11 km/h
  • Pressure Pressure 1028 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 29 km/h
  • Visibility Visibility 50 km
15:00 Scattered clouds -7° Scattered clouds
Feels Like -12°
Calm Northwest 10 - 24 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 67%
  • Dew Point Dew Point -12 °C
  • Clouds Clouds 31%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -12 °C
  • Wind Wind - Average 10 km/h
  • Pressure Pressure 1029 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 24 km/h
  • Visibility Visibility 50 km
16:00 Scattered clouds -8° Scattered clouds
Feels Like -12°
Calm Northwest 8 - 29 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 72%
  • Dew Point Dew Point -13 °C
  • Clouds Clouds 50%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -12 °C
  • Wind Wind - Average 8 km/h
  • Pressure Pressure 1029 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 29 km/h
  • Visibility Visibility 50 km
Scattered clouds 17:00 Scattered clouds -9° Scattered clouds
Feels Like -13°
Calm Northwest 7 - 16 km/h
UV Index 0 Low SPF: no
Scattered clouds 17:00 Scattered clouds -9° Scattered clouds
Feels Like -13°
Calm Northwest 7 - 16 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 77%
  • Dew Point Dew Point -13 °C
  • Clouds Clouds 50%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -13 °C
  • Wind Wind - Average 7 km/h
  • Pressure Pressure 1030 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 16 km/h
  • Visibility Visibility 50 km
18:00 Scattered clouds -10° Scattered clouds
Feels Like -13°
Calm Northwest 6 - 13 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 79%
  • Dew Point Dew Point -13 °C
  • Clouds Clouds 50%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -13 °C
  • Wind Wind - Average 6 km/h
  • Pressure Pressure 1030 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 13 km/h
  • Visibility Visibility 50 km
19:00 Partly cloudy -10° Partly cloudy
Feels Like -13°
Calm Northwest 6 - 16 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 76%
  • Dew Point Dew Point -13 °C
  • Clouds Clouds 93%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -13 °C
  • Wind Wind - Average 6 km/h
  • Pressure Pressure 1030 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 16 km/h
  • Visibility Visibility 50 km
Overcast 20:00 Overcast -10° Overcast
Feels Like -13°
Calm North 7 - 15 km/h
UV Index 0 Low SPF: no
Overcast 20:00 Overcast -10° Overcast
Feels Like -13°
Calm North 7 - 15 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 76%
  • Dew Point Dew Point -13 °C
  • Clouds Clouds 100%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -13 °C
  • Wind Wind - Average 7 km/h
  • Pressure Pressure 1030 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 15 km/h
  • Visibility Visibility 45 km
21:00 Overcast -10° Overcast
Feels Like -14°
Calm North 7 - 15 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 76%
  • Dew Point Dew Point -13 °C
  • Clouds Clouds 100%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -14 °C
  • Wind Wind - Average 7 km/h
  • Pressure Pressure 1030 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 15 km/h
  • Visibility Visibility 45 km
22:00 Overcast -10° Overcast
Feels Like -14°
Calm Northeast 7 - 16 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 76%
  • Dew Point Dew Point -14 °C
  • Clouds Clouds 100%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -14 °C
  • Wind Wind - Average 7 km/h
  • Pressure Pressure 1030 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 16 km/h
  • Visibility Visibility 45 km
Overcast 23:00 Overcast -10° Overcast
Feels Like -13°
Calm Northeast 5 - 14 km/h
UV Index 0 Low SPF: no
Overcast 23:00 Overcast -10° Overcast
Feels Like -13°
Calm Northeast 5 - 14 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 76%
  • Dew Point Dew Point -14 °C
  • Clouds Clouds 100%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -13 °C
  • Wind Wind - Average 5 km/h
  • Pressure Pressure 1030 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 14 km/h
  • Visibility Visibility 35 km
24:00 Overcast -10° Overcast
Feels Like -13°
Calm North 5 - 12 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 77%
  • Dew Point Dew Point -13 °C
  • Clouds Clouds 99%
  • Snow depth Snow depth 5 cm
  • Feels Like Feels Like -13 °C
  • Wind Wind - Average 5 km/h
  • Pressure Pressure 1029 hPa
  • Snowline Snowline 0 m
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 12 km/h
  • Visibility Visibility 35 km

Air quality in Cornwall today

Detail
34
Fair O₃ (85 µg/m³)
  • Little health risk.
  • Sensitive people should consider reducing prolonged or intense outdoor activities if they experience symptoms.

Weather graphs

Maximum Minimum Rainfall
Videos
A major hailstorm causes significant damage in La Pampa, Argentina
A major hailstorm causes significant damage in La Pampa, Argentina