Cornwall, ON Weather

    00:00 Wednesday
    Partly cloudy
    Partly cloudy
    19° Feels like 19°
    First Quarter First Quarter Illuminated: 30%
    reloj Hourly Overcast skies for the next few hours
    • Today 16 Sept. Partly cloudy 24° / 15° Moderate southwest wind 18 - 36 km/h
    • Tomorrow 17 Sept. Scattered clouds 23° / 13° Gentle northeast wind 8 - 19 km/h
    • Friday 18 Sept. Scattered clouds 20° / 11° Moderate northwest wind 17 - 37 km/h
    • Saturday 19 Sept. Scattered clouds 17° / 7° Gentle north wind 7 - 17 km/h
    • Sunday 20 Sept. Scattered clouds 19° / 8° Moderate northeast wind 7 - 21 km/h
    • Monday 21 Sept. Partly cloudy 18° / 9° Moderate northeast wind 16 - 34 km/h
    • Tuesday 22 Sept. Light rain with partly cloudy skies 40% 1.2 mm 21° / 11° Moderate northeast wind 16 - 35 km/h

    Weather Forecast for Cornwall, ON Today

    , 16 September

    Tomorrow

    , 17 September
    01:00 Partly cloudy 19° Partly cloudy
    Feels Like 19°
    Moderate southwest wind Southwest 18 - 32 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 60%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 94%
    • Feels Like Feels Like 19 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 18 km/h
    • Pressure Pressure 1022 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 32 km/h
    • Snowline Snowline 14764 ft
    02:00 Partly cloudy 18° Partly cloudy
    Feels Like 18°
    Moderate southwest wind Southwest 18 - 36 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 20% 0 mm
    • Humidity Humidity 66%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 63%
    • Feels Like Feels Like 18 °C
    • Visibility Visibility 12 km
    • Wind Wind - Average 18 km/h
    • Pressure Pressure 1022 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 36 km/h
    • Snowline Snowline 15092 ft
    03:00 Partly cloudy 17° Partly cloudy
    Feels Like 17°
    Moderate southwest wind Southwest 16 - 34 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 10% 0 mm
    • Humidity Humidity 79%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 80%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 16 km/h
    • Pressure Pressure 1022 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 34 km/h
    • Snowline Snowline 14764 ft
    04:00 Overcast 17° Overcast
    Feels Like 17°
    Moderate southwest wind Southwest 14 - 29 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 81%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1022 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 29 km/h
    • Snowline Snowline 14436 ft
    Overcast 05:00 Overcast 17° Overcast
    Feels Like 17°
    Moderate southwest wind Southwest 15 - 27 km/h
    		UV Index 0 Low SPF: no
    05:00 Overcast 17° Overcast
    Feels Like 17°
    Moderate southwest wind Southwest 15 - 27 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 79%
    • Dew Point Dew Point 13 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1023 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 27 km/h
    • Snowline Snowline 14764 ft
    06:00 Overcast 17° Overcast
    Feels Like 17°
    Moderate southwest wind Southwest 13 - 27 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 79%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1023 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 27 km/h
    • Snowline Snowline 14764 ft
    07:00 Scattered clouds 17° Scattered clouds
    Feels Like 17°
    Moderate southwest wind Southwest 12 - 24 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 80%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 40%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1023 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 24 km/h
    • Snowline Snowline 14436 ft
    Scattered clouds 08:00 Scattered clouds 18° Scattered clouds
    Feels Like 18°
    Moderate southwest wind Southwest 13 - 25 km/h
    		UV Index 0 Low SPF: no
    08:00 Scattered clouds 18° Scattered clouds
    Feels Like 18°
    Moderate southwest wind Southwest 13 - 25 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 80%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 24%
    • Feels Like Feels Like 18 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1024 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 14436 ft
    09:00 Scattered clouds 19° Scattered clouds
    Feels Like 19°
    Moderate southwest wind Southwest 13 - 25 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 77%
    • Dew Point Dew Point 15 °C
    • Clouds Clouds 21%
    • Feels Like Feels Like 19 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1024 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 15092 ft
    10:00 Scattered clouds 20° Scattered clouds
    Feels Like 20°
    Moderate southwest wind Southwest 13 - 28 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 74%
    • Dew Point Dew Point 15 °C
    • Clouds Clouds 17%
    • Feels Like Feels Like 20 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1024 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 28 km/h
    • Snowline Snowline 15420 ft
    Partly cloudy 11:00 Partly cloudy 22° Partly cloudy
    Feels Like 22°
    Moderate southwest wind Southwest 12 - 28 km/h
    		UV Index 3 Moderate SPF: 6-10
    11:00 Partly cloudy 22° Partly cloudy
    Feels Like 22°
    Moderate southwest wind Southwest 12 - 28 km/h
    		UV Index 3 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 73%
    • Dew Point Dew Point 17 °C
    • Clouds Clouds 56%
    • Feels Like Feels Like 22 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1025 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 28 km/h
    • Snowline Snowline 15420 ft
    12:00 Partly cloudy 23° Partly cloudy
    Feels Like 24°
    Moderate west wind West 12 - 27 km/h
    		UV Index 3 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 71%
    • Dew Point Dew Point 17 °C
    • Clouds Clouds 92%
    • Feels Like Feels Like 24 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1024 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 27 km/h
    • Snowline Snowline 15420 ft
    13:00 Partly cloudy 23° Partly cloudy
    Feels Like 24°
    Moderate west wind West 11 - 27 km/h
    		UV Index 4 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 73%
    • Dew Point Dew Point 18 °C
    • Clouds Clouds 72%
    • Feels Like Feels Like 24 °C
    • Visibility Visibility 18 km
    • Wind Wind - Average 11 km/h
    • Pressure Pressure 1024 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 27 km/h
    • Snowline Snowline 15748 ft
    Partly cloudy 14:00 Partly cloudy 23° Partly cloudy
    Feels Like 24°
    Moderate west wind West 12 - 27 km/h
    		UV Index 4 Moderate SPF: 6-10
    14:00 Partly cloudy 23° Partly cloudy
    Feels Like 24°
    Moderate west wind West 12 - 27 km/h
    		UV Index 4 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 72%
    • Dew Point Dew Point 18 °C
    • Clouds Clouds 73%
    • Feels Like Feels Like 24 °C
    • Visibility Visibility 14 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1024 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 27 km/h
    • Snowline Snowline 15748 ft
    15:00 Partly cloudy 23° Partly cloudy
    Feels Like 24°
    Moderate northwest wind Northwest 11 - 27 km/h
    		UV Index 3 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 70%
    • Dew Point Dew Point 18 °C
    • Clouds Clouds 68%
    • Feels Like Feels Like 24 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 11 km/h
    • Pressure Pressure 1024 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 27 km/h
    • Snowline Snowline 16076 ft
    16:00 Scattered clouds 23° Scattered clouds
    Feels Like 24°
    Moderate northwest wind Northwest 11 - 26 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 69%
    • Dew Point Dew Point 17 °C
    • Clouds Clouds 54%
    • Feels Like Feels Like 24 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 11 km/h
    • Pressure Pressure 1023 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 26 km/h
    • Snowline Snowline 15748 ft
    Scattered clouds 17:00 Scattered clouds 23° Scattered clouds
    Feels Like 24°
    Moderate northwest wind Northwest 12 - 24 km/h
    		UV Index 1 Low SPF: no
    17:00 Scattered clouds 23° Scattered clouds
    Feels Like 24°
    Moderate northwest wind Northwest 12 - 24 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 69%
    • Dew Point Dew Point 17 °C
    • Clouds Clouds 51%
    • Feels Like Feels Like 24 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1024 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 24 km/h
    • Snowline Snowline 15748 ft
    18:00 Scattered clouds 21° Scattered clouds
    Feels Like 21°
    Moderate northwest wind Northwest 9 - 23 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 73%
    • Dew Point Dew Point 16 °C
    • Clouds Clouds 49%
    • Feels Like Feels Like 21 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 9 km/h
    • Pressure Pressure 1024 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 23 km/h
    • Snowline Snowline 15748 ft
    19:00 Scattered clouds 19° Scattered clouds
    Feels Like 19°
    Gentle northwest wind Northwest 7 - 17 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 80%
    • Dew Point Dew Point 16 °C
    • Clouds Clouds 47%
    • Feels Like Feels Like 19 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1025 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 17 km/h
    • Snowline Snowline 15748 ft
    Scattered clouds 20:00 Scattered clouds 18° Scattered clouds
    Feels Like 18°
    Gentle northwest wind Northwest 6 - 12 km/h
    		UV Index 0 Low SPF: no
    20:00 Partly cloudy 18° Partly cloudy
    Feels Like 18°
    Gentle northwest wind Northwest 6 - 12 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 86%
    • Dew Point Dew Point 15 °C
    • Clouds Clouds 51%
    • Feels Like Feels Like 18 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1025 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 12 km/h
    • Snowline Snowline 15748 ft
    21:00 Partly cloudy 17° Partly cloudy
    Feels Like 17°
    Gentle northwest wind Northwest 5 - 9 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 88%
    • Dew Point Dew Point 15 °C
    • Clouds Clouds 55%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1025 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 9 km/h
    • Snowline Snowline 15748 ft
    22:00 Partly cloudy 17° Partly cloudy
    Feels Like 17°
    Gentle northwest wind Northwest 4 - 7 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 89%
    • Dew Point Dew Point 15 °C
    • Clouds Clouds 57%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1026 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 7 km/h
    • Snowline Snowline 15748 ft
    Scattered clouds 23:00 Scattered clouds 16° Scattered clouds
    Feels Like 16°
    Gentle northwest wind Northwest 3 - 6 km/h
    		UV Index 0 Low SPF: no
    23:00 Partly cloudy 16° Partly cloudy
    Feels Like 16°
    Gentle northwest wind Northwest 3 - 6 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 91%
    • Dew Point Dew Point 15 °C
    • Clouds Clouds 53%
    • Feels Like Feels Like 16 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 3 km/h
    • Pressure Pressure 1026 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 6 km/h
    • Snowline Snowline 15748 ft
    24:00 Scattered clouds 15° Scattered clouds
    Feels Like 15°
    Gentle northwest wind Northwest 2 - 5 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 46%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 2 km/h
    • Pressure Pressure 1025 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 5 km/h
    • Snowline Snowline 15748 ft

    Air quality in Cornwall today

    Detail
    38
    Fair O₃ (94 µg/m³)

    Sunrise and Sunset

    Sunrise 06:38 Sunset 19:07
    First light 06:09 Midday 12:53 Last light 19:37
    Day length 12h 29m

    Time remaining until sunrise 6h 2m

    Lunar calendar

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

    What is the weather like in Cornwall, ON in September?

    • Avg. Temp.
      Avg. Temp.: 16 °C Max.: 21 °C Min: 11 °C
    • Rainy Days
      Rainy Days: 11 days
    • Accumulated Rainfall
      Accumulated Rainfall: 96 mm
    • Average Wind Speed
      Average Wind Speed: 10 km/h

    Weather graphs

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