Cornwall, ON Weather

18:00 Saturday Artboard
Partly cloudy
Partly cloudy
20° Feels like 20°
Southwest Southwest 20 - 39 km/h
  • Today 17 May Thunderstorm 90% 4.2 mm 22° / 13° Calm 21 - 47 km/h
  • Tomorrow 18 May Light rain 80% 1 mm 16° / Calm 24 - 49 km/h
  • Monday 19 May Light rain 70% 1.2 mm 10° / Calm 21 - 47 km/h
  • Tuesday 20 May Overcast 15° / Calm 13 - 33 km/h
  • Wednesday 21 May Light rain 90% 5.2 mm 14° / Calm 23 - 43 km/h
  • Thursday 22 May Light rain 90% 9.6 mm / Calm 24 - 48 km/h
  • Friday 23 May Light rain 90% 9.9 mm 10° / Calm 13 - 28 km/h

Weather Forecast for Cornwall, ON Today

, 17 May

Tomorrow

, 18 May
17:00 Light rain 50% 0.2 mm 20° Light rain
Feels Like 20°
Calm Southwest 18 - 46 km/h
UV Index 2 Low SPF: no
  • Rain Rain 50% 0.2 mm
  • Humidity Humidity 76%
  • Dew Point Dew Point 16 °C
  • Clouds Clouds 69%
  • Feels Like Feels Like 20 °C
  • Visibility Visibility 20 km
  • Wind Wind - Average 18 km/h
  • Pressure Pressure 995 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 46 km/h
  • Snowline Snowline 10499 ft
18:00 Partly cloudy 20° Partly cloudy
Feels Like 20°
Calm Southwest 20 - 39 km/h
UV Index 1 Low SPF: no
  • Rain Rain 20% 0 mm
  • Humidity Humidity 77%
  • Dew Point Dew Point 15 °C
  • Clouds Clouds 93%
  • Feels Like Feels Like 20 °C
  • Visibility Visibility 30 km
  • Wind Wind - Average 20 km/h
  • Pressure Pressure 995 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 39 km/h
  • Snowline Snowline 10171 ft
19:00 Light rain 50% 0.2 mm 18° Light rain
Feels Like 18°
Calm Southwest 19 - 41 km/h
UV Index 0 Low SPF: no
  • Rain Rain 50% 0.2 mm
  • Humidity Humidity 77%
  • Dew Point Dew Point 14 °C
  • Clouds Clouds 100%
  • Feels Like Feels Like 18 °C
  • Visibility Visibility 5 km
  • Wind Wind - Average 19 km/h
  • Pressure Pressure 995 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 41 km/h
  • Snowline Snowline 9843 ft
20:00 Light rain 40% 0.6 mm 16° Light rain
Feels Like 16°
Calm Southwest 18 - 41 km/h
UV Index 0 Low SPF: no
  • Rain Rain 40% 0.6 mm
  • Humidity Humidity 87%
  • Dew Point Dew Point 14 °C
  • Clouds Clouds 62%
  • Feels Like Feels Like 16 °C
  • Visibility Visibility 16 km
  • Wind Wind - Average 18 km/h
  • Pressure Pressure 995 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 41 km/h
  • Snowline Snowline 9843 ft
21:00 Scattered clouds 15° Scattered clouds
Feels Like 15°
Calm Southwest 19 - 34 km/h
UV Index 0 Low SPF: no
  • Rain Rain 10% 0 mm
  • Humidity Humidity 92%
  • Dew Point Dew Point 14 °C
  • Clouds Clouds 23%
  • Feels Like Feels Like 15 °C
  • Visibility Visibility 20 km
  • Wind Wind - Average 19 km/h
  • Pressure Pressure 996 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 34 km/h
  • Snowline Snowline 9843 ft
22:00 Partly cloudy 14° Partly cloudy
Feels Like 14°
Calm Southwest 21 - 39 km/h
UV Index 0 Low SPF: no
  • Rain Rain 10% 0 mm
  • Humidity Humidity 92%
  • Dew Point Dew Point 13 °C
  • Clouds Clouds 88%
  • Feels Like Feels Like 14 °C
  • Visibility Visibility 20 km
  • Wind Wind - Average 21 km/h
  • Pressure Pressure 997 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 39 km/h
  • Snowline Snowline 9186 ft
23:00 Partly cloudy 14° Partly cloudy
Feels Like 14°
Calm Southwest 21 - 40 km/h
UV Index 0 Low SPF: no
  • Rain Rain 10% 0 mm
  • Humidity Humidity 90%
  • Dew Point Dew Point 12 °C
  • Clouds Clouds 62%
  • Feels Like Feels Like 14 °C
  • Visibility Visibility 14 km
  • Wind Wind - Average 21 km/h
  • Pressure Pressure 997 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 40 km/h
  • Snowline Snowline 8202 ft
24:00 Light rain 30% 0.1 mm 13° Light rain
Feels Like 13°
Calm Southwest 20 - 39 km/h
UV Index 0 Low SPF: no
  • Rain Rain 30% 0.1 mm
  • Humidity Humidity 91%
  • Dew Point Dew Point 12 °C
  • Clouds Clouds 48%
  • Feels Like Feels Like 13 °C
  • Visibility Visibility 12 km
  • Wind Wind - Average 20 km/h
  • Pressure Pressure 997 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 39 km/h
  • Snowline Snowline 7874 ft

Sunrise and Sunset

Sunrise 05:27 Sunset 20:24
First light 04:52 Midday 12:55 Last light 20:58
Day length 14h 57m

Remaining daylight 2h 9m

Lunar calendar

Mon Tue Wed Thu Fri Sat Sun
17
Last Quarter
18
Last Quarter
19
Last Quarter
20
Last Quarter
21
Last Quarter
22
Last Quarter
23
Last Quarter
24
Last Quarter
25
Last Quarter
26
New Moon
27
New Moon
28
First Quarter
29
First Quarter
30
First Quarter

Air quality in Cornwall today

Detail
41
Moderate O₃ (101 µg/m³)
  • Possible health risk.
  • Enjoy your usual outdoor activities if you do not experience symptoms.
  • Sensitive people should limit prolonged or intense outdoor activities.

Weather graphs

Maximum Minimum Rainfall

Videos

A major hailstorm is causing severe damage in Florentino Ameghino, Argentina! The storm has brought heavy rain and intense winds to the area
A major hailstorm is causing severe damage in Florentino Ameghino, Argentina! The storm has brought heavy rain and intense winds to the area