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Weather Forecast for Cornwall (Ontario, Canada)
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Forecast Overview
Sun Dec 22 
10°F 1°F -12°C -17°C Mostly sunny, with a few passing clouds.
detailsMon Dec 23 
25°F 7°F -4°C -14°C Chance of snow after 1 pm.
detailsTue Dec 24 
27°F 12°F -3°C -11°C Chance of snow before sunrise.
detailsWed Dec 25 
27°F 9°F -3°C -13°C Mostly cloudy skies.
detailsThu Dec 26 28°F 14°F -2°C -10°C More clouds than sun.
detailsFri Dec 27 
30°F 16°F -1°C -9°C Mostly cloudy skies.
detailsSat Dec 28 
34°F 19°F 1°C -7°C Chance of light rain late at night.
detailsSun Dec 29 
36°F 34°F 2°C 1°C Chance of light rain before sunrise and late at night.
detailsMon Dec 30 
37°F 34°F 3°C 1°C Chance of rain until 4 pm.
detailsTue Dec 31 
39°F 32°F 4°C -0°C Chance of light rain before sunrise.
detailsWed Jan 1 
37°F 32°F 3°C -0°C Chance of rain in the afternoon and in the evening. Chance of snow late at night.
detailsThu Jan 2 
36°F 32°F 2°C 0°C Chance of snow at various times.
detailsFri Jan 3 34°F 25°F 1°C -4°C Chance of snow all night and day.
detailsSat Jan 4 25°F 14°F -4°C -10°C Chance of light snow in the morning.
details
Detailed Forecast
| Sunday, December 22 | sunrise: 07:34 sunset: 16:20 |
| Low around 2°F (-17°C), high around 11°F (-12°C). Mostly sunny, with a few passing clouds. Wind: 7 mph (11 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 |  | Clear. | 2°F (-16°C) | 7 mph (11 km/h) | 77% | 0.373% |
| 04:00 07:00 | | Clear. | 2°F (-16°C) | 6 mph (9 km/h) | 78% | 0.376% |
| 07:00 10:00 | | Considerable cloudiness. | 6°F (-15°C) | 5 mph (8 km/h) | 69% | 0.378% |
| 10:00 13:00 | | Partly cloudy. | 10°F (-12°C) | 6 mph (9 km/h) | 64% | 0.381% |
| 13:00 16:00 | | Sunny. | 10°F (-12°C) | 5 mph (7 km/h) | 71% | 0.382% |
| 16:00 19:00 | | Clear. | 8°F (-13°C) | 3 mph (5 km/h) | 82% | 0.384% |
| 19:00 22:00 | | Clear. | 8°F (-13°C) | 4 mph (6 km/h) | 84% | 0.386% |
| 22:00 01:00 | | Clear. | 7°F (-14°C) | 3 mph (4 km/h) | 87% | 0.388% |
| Monday, December 23 | sunrise: 07:35 sunset: 16:20 |
| Low around 7°F (-14°C), high around 25°F (-4°C). Chance of snow from 1 pm till 1 am. Estimated precipitation: 0.35 in (8.9375 mm). Overcast skies. Wind: 6 mph (9 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Partly cloudy. | 7°F (-14°C) | 2 mph (4 km/h) | 87% | 0.389% |
| 04:00 07:00 | | Overcast. | 7°F (-14°C) | 3 mph (4 km/h) | 86% | 0.391% |
| 07:00 10:00 | | Overcast. | 14°F (-10°C) | 2 mph (3 km/h) | 60% | 0.392% |
| 10:00 13:00 | | Overcast. | 21°F (-6°C) | 3 mph (5 km/h) | 47% | 0.393% |
| 13:00 16:00 | | Chance of light snow. Precipitation: 0.01 in (0.1875 mm). | 20°F (-6°C) | 6 mph (9 km/h) | 72% | 0.394% |
| 16:00 19:00 | | Chance of snow. Precipitation: 0.05 in (1.3125 mm). | 20°F (-7°C) | 4 mph (7 km/h) | 95% | 0.395% |
| 19:00 22:00 | | Chance of snow. Precipitation: 0.16 in (3.9375 mm). | 24°F (-4°C) | 3 mph (4 km/h) | 97% | 0.395% |
| 22:00 01:00 | | Chance of snow. Precipitation: 0.14 in (3.5 mm). | 25°F (-4°C) | 0 mph (0 km/h) | 98% | 0.396% |
| Tuesday, December 24 | sunrise: 07:35 sunset: 16:21 |
| Low around 12°F (-11°C), high around 26°F (-3°C). Chance of snow before sunrise (from 1 am to 7 am). Estimated precipitation: 0.13 in (3.3125 mm). Mostly cloudy skies. Wind: 6 mph (10 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Chance of snow. Precipitation: 0.09 in (2.25 mm). | 25°F (-4°C) | 5 mph (8 km/h) | 97% | 0.397% |
| 04:00 07:00 | | Chance of light snow. Precipitation: 0.04 in (0.9375 mm). | 24°F (-4°C) | 6 mph (9 km/h) | 97% | 0.397% |
| 07:00 10:00 | | Mostly cloudy. Precipitation: 0 in (0.0625 mm). | 23°F (-5°C) | 6 mph (10 km/h) | 93% | 0.398% |
| 10:00 13:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 26°F (-3°C) | 5 mph (9 km/h) | 87% | 0.398% |
| 13:00 16:00 | | More sun than clouds. | 21°F (-6°C) | 3 mph (6 km/h) | 94% | 0.399% |
| 16:00 19:00 | | Overcast. | 14°F (-10°C) | 3 mph (5 km/h) | 97% | 0.399% |
| 19:00 22:00 | | Overcast. | 13°F (-10°C) | 4 mph (6 km/h) | 98% | 0.4% |
| 22:00 01:00 | | Overcast. | 13°F (-11°C) | 3 mph (5 km/h) | 98% | 0.401% |
| Wednesday, December 25 | sunrise: 07:35 sunset: 16:22 |
| Low around 8°F (-13°C), high around 27°F (-3°C). Mostly cloudy skies. Wind: 5 mph (7 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Considerable cloudiness. | 10°F (-12°C) | 4 mph (7 km/h) | 98% | 0.401% |
| 04:00 07:00 | | Partly cloudy. | 9°F (-13°C) | 4 mph (6 km/h) | 98% | 0.402% |
| 07:00 10:00 | | Sunny. | 19°F (-7°C) | 4 mph (6 km/h) | 89% | 0.403% |
| 10:00 13:00 | | Considerable cloudiness. | 27°F (-3°C) | 3 mph (5 km/h) | 86% | 0.404% |
| 13:00 16:00 | | Overcast. | 22°F (-6°C) | 4 mph (7 km/h) | 96% | 0.405% |
| 16:00 19:00 | | Overcast. | 23°F (-5°C) | 5 mph (7 km/h) | 96% | 0.405% |
| 19:00 22:00 | | Overcast. | 20°F (-7°C) | 3 mph (5 km/h) | 98% | 0.406% |
| 22:00 01:00 | | Overcast. | 23°F (-5°C) | 4 mph (6 km/h) | 96% | 0.406% |
| Thursday, December 26 | sunrise: 07:36 sunset: 16:22 |
| Low around 15°F (-10°C), high around 29°F (-2°C). More clouds than sun. Wind: 6 mph (9 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Mostly cloudy. | 23°F (-5°C) | 4 mph (6 km/h) | 96% | 0.407% |
| 04:00 07:00 | | Considerable cloudiness. | 15°F (-9°C) | 3 mph (6 km/h) | 99% | 0.407% |
| 07:00 10:00 | | Considerable cloudiness. | 24°F (-5°C) | 5 mph (7 km/h) | 93% | 0.408% |
| 10:00 13:00 | | Times of sun and clouds. | 29°F (-2°C) | 6 mph (9 km/h) | 89% | 0.409% |
| 13:00 16:00 | | Mostly sunny. | 23°F (-5°C) | 4 mph (6 km/h) | 96% | 0.41% |
| 16:00 19:00 | | Overcast. | 15°F (-9°C) | 4 mph (6 km/h) | 99% | 0.41% |
| 19:00 22:00 | | Clear. | 17°F (-9°C) | 6 mph (9 km/h) | 95% | 0.411% |
| 22:00 01:00 | | Clear. | 17°F (-9°C) | 6 mph (9 km/h) | 95% | 0.411% |
| Friday, December 27 | sunrise: 07:36 sunset: 16:23 |
| Low around 16°F (-9°C), high around 30°F (-1°C). Mostly cloudy skies. Wind: 7 mph (12 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Clear. | 17°F (-8°C) | 7 mph (11 km/h) | 95% | 0.412% |
| 04:00 07:00 | | Overcast. | 17°F (-9°C) | 7 mph (12 km/h) | 96% | 0.413% |
| 07:00 10:00 | | Partly cloudy. | 22°F (-6°C) | 7 mph (11 km/h) | 91% | 0.413% |
| 10:00 13:00 | | Overcast. | 30°F (-1°C) | 4 mph (7 km/h) | 86% | 0.415% |
| 13:00 16:00 | | Overcast. | 26°F (-4°C) | 6 mph (9 km/h) | 95% | 0.416% |
| 16:00 19:00 | | Overcast. | 23°F (-5°C) | 5 mph (8 km/h) | 97% | 0.417% |
| 19:00 22:00 | | Considerable cloudiness. | 22°F (-5°C) | 4 mph (7 km/h) | 97% | 0.417% |
| 22:00 01:00 | | Overcast. | 20°F (-7°C) | 4 mph (7 km/h) | 98% | 0.418% |
| Saturday, December 28 | sunrise: 07:36 sunset: 16:24 |
| Low around 20°F (-7°C), high around 34°F (1°C). Chance of light rain late at night (after 10 pm). Estimated precipitation: 0.04 in (0.9375 mm). Overcast skies. Wind: 6 mph (9 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Overcast. | 21°F (-6°C) | 3 mph (5 km/h) | 98% | 0.418% |
| 04:00 07:00 | | Overcast. | 23°F (-5°C) | 3 mph (5 km/h) | 98% | 0.419% |
| 07:00 10:00 | | Overcast. | 30°F (-1°C) | 5 mph (8 km/h) | 92% | 0.419% |
| 10:00 13:00 | | Overcast. | 33°F (1°C) | 5 mph (9 km/h) | 95% | 0.425% |
| 13:00 16:00 | | Overcast. | 31°F (-0°C) | 6 mph (9 km/h) | 96% | 0.43% |
| 16:00 19:00 | | Overcast. | 32°F (-0°C) | 4 mph (6 km/h) | 96% | 0.43% |
| 19:00 22:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 33°F (0°C) | 5 mph (8 km/h) | 95% | 0.431% |
| 22:00 01:00 | | Chance of light rain. Precipitation: 0.03 in (0.875 mm). | 33°F (1°C) | 4 mph (7 km/h) | 98% | 0.435% |
| Sunday, December 29 | sunrise: 07:37 sunset: 16:25 |
| Low around 33°F (1°C), high around 35°F (2°C). Chance of light rain before sunrise (from 1 am to 7 am) and again at night (after 10 pm). Estimated precipitation: 0.05 in (1.3125 mm). Overcast skies. Wind: 6 mph (9 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Chance of light rain. Precipitation: 0.03 in (0.75 mm). | 34°F (1°C) | 5 mph (8 km/h) | 99% | 0.438% |
| 04:00 07:00 | | Chance of light rain. Precipitation: 0.01 in (0.1875 mm). | 34°F (1°C) | 5 mph (7 km/h) | 99% | 0.44% |
| 07:00 10:00 | | Overcast. | 34°F (1°C) | 5 mph (8 km/h) | 99% | 0.441% |
| 10:00 13:00 | | Overcast. | 35°F (1°C) | 4 mph (7 km/h) | 100% | 0.443% |
| 13:00 16:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 34°F (1°C) | 5 mph (8 km/h) | 100% | 0.444% |
| 16:00 19:00 | | Overcast. Precipitation: 0.01 in (0.1875 mm). | 34°F (1°C) | 5 mph (8 km/h) | 100% | 0.446% |
| 19:00 22:00 | | Overcast. | 35°F (2°C) | 6 mph (9 km/h) | 99% | 0.446% |
| 22:00 01:00 | | Chance of light rain. Precipitation: 0 in (0.125 mm). | 35°F (2°C) | 5 mph (9 km/h) | 98% | 0.448% |
| Monday, December 30 | sunrise: 07:37 sunset: 16:25 |
| Low around 34°F (1°C), high around 37°F (3°C). Chance of rain until late afternoon (4 pm). Estimated precipitation: 0.4 in (10.0625 mm). Overcast skies. Wind: 5 mph (7 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Chance of rain. Precipitation: 0.09 in (2.1875 mm). | 35°F (2°C) | 4 mph (7 km/h) | 99% | 0.448% |
| 04:00 07:00 | | Chance of rain. Precipitation: 0.14 in (3.4375 mm). | 36°F (2°C) | 5 mph (7 km/h) | 98% | 0.448% |
| 07:00 10:00 | | Chance of rain. Precipitation: 0.1 in (2.4375 mm). | 36°F (2°C) | 5 mph (7 km/h) | 99% | 0.448% |
| 10:00 13:00 | | Chance of rain. Precipitation: 0.06 in (1.5 mm). | 36°F (2°C) | 4 mph (6 km/h) | 99% | 0.448% |
| 13:00 16:00 | | Chance of light rain. Precipitation: 0.01 in (0.375 mm). | 36°F (2°C) | 4 mph (7 km/h) | 97% | 0.448% |
| 16:00 19:00 | | Overcast. Precipitation: 0 in (0.125 mm). | 35°F (2°C) | 3 mph (5 km/h) | 97% | 0.448% |
| 19:00 22:00 | | Overcast. | 36°F (2°C) | 4 mph (6 km/h) | 95% | 0.447% |
| 22:00 01:00 | | Overcast. | 34°F (1°C) | 2 mph (4 km/h) | 96% | 0.445% |
| Tuesday, December 31 | sunrise: 07:37 sunset: 16:26 |
| Low around 31°F (-0°C), high around 39°F (4°C). Chance of light rain between 1 am and 4 am. Estimated precipitation: 0.03 in (0.875 mm). Mostly cloudy skies. Wind: 4 mph (6 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Chance of light rain. Precipitation: 0.03 in (0.75 mm). | 35°F (2°C) | 3 mph (5 km/h) | 99% | 0.447% |
| 04:00 07:00 | | Partly cloudy. Precipitation: 0 in (0.125 mm). | 35°F (1°C) | 2 mph (4 km/h) | 97% | 0.446% |
| 07:00 10:00 | | Overcast. | 34°F (1°C) | 2 mph (4 km/h) | 99% | 0.444% |
| 10:00 13:00 | | Overcast. | 39°F (4°C) | 2 mph (3 km/h) | 97% | 0.443% |
| 13:00 16:00 | | Overcast. | 35°F (2°C) | 4 mph (6 km/h) | 99% | 0.438% |
| 16:00 19:00 | | Overcast. | 35°F (1°C) | 4 mph (6 km/h) | 98% | 0.431% |
| 19:00 22:00 | | Overcast. | 34°F (1°C) | 3 mph (6 km/h) | 99% | 0.425% |
| 22:00 01:00 | | Partly cloudy. | 31°F (-0°C) | 3 mph (6 km/h) | 99% | 0.419% |
| Wednesday, January 1 | sunrise: 07:37 sunset: 16:27 |
| Low around 31°F (-0°C), high around 37°F (3°C). Chance of rain early in the afternoon (between 1 pm and 4 pm) and in the evening (between 7 pm and 10 pm). Chance of snow late at night (after 10 pm). Estimated precipitation: 0.26 in (6.5 mm). Overcast skies. Wind: 16 mph (26 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Overcast. | 33°F (1°C) | 7 mph (11 km/h) | 99% | 0.414% |
| 04:00 07:00 | | Overcast. | 33°F (1°C) | 10 mph (16 km/h) | 98% | 0.411% |
| 07:00 10:00 | | Overcast. | 35°F (2°C) | 9 mph (15 km/h) | 96% | 0.408% |
| 10:00 13:00 | | Overcast. | 37°F (3°C) | 11 mph (18 km/h) | 94% | 0.407% |
| 13:00 16:00 | | Chance of light rain. Precipitation: 0 in (0.125 mm). | 36°F (2°C) | 14 mph (22 km/h) | 92% | 0.399% |
| 16:00 19:00 | | Overcast. Precipitation: 0.03 in (0.875 mm). | 35°F (2°C) | 14 mph (23 km/h) | 97% | 0.394% |
| 19:00 22:00 | | Chance of light rain. Precipitation: 0.01 in (0.1875 mm). | 34°F (1°C) | 14 mph (22 km/h) | 92% | 0.382% |
| 22:00 01:00 | | Chance of snow. Precipitation: 0.21 in (5.3125 mm). | 33°F (0°C) | 16 mph (26 km/h) | 97% | 0.385% |
| Thursday, January 2 | sunrise: 07:37 sunset: 16:27 |
| Low around 32°F (0°C), high around 35°F (2°C). Chance of snow almost all day, except in the morning from 7 am to 1 pm. Estimated precipitation: 0.36 in (9.125 mm). Overcast skies. Wind: 15 mph (25 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Chance of snow. Precipitation: 0.12 in (3 mm). | 33°F (0°C) | 14 mph (23 km/h) | 98% | 0.382% |
| 04:00 07:00 | | Chance of snow. Precipitation: 0.07 in (1.8125 mm). | 33°F (1°C) | 15 mph (25 km/h) | 98% | 0.377% |
| 07:00 10:00 | | Overcast. Precipitation: 0.03 in (0.8125 mm). | 34°F (1°C) | 14 mph (23 km/h) | 97% | 0.374% |
| 10:00 13:00 | | Overcast. Precipitation: 0 in (0.125 mm). | 34°F (1°C) | 14 mph (23 km/h) | 97% | 0.372% |
| 13:00 16:00 | | Chance of light snow. Precipitation: 0 in (0.0625 mm). | 33°F (1°C) | 12 mph (20 km/h) | 98% | 0.366% |
| 16:00 19:00 | | Chance of light snow. Precipitation: 0.03 in (0.875 mm). | 32°F (0°C) | 7 mph (12 km/h) | 98% | 0.358% |
| 19:00 22:00 | | Chance of snow. Precipitation: 0.05 in (1.3125 mm). | 32°F (0°C) | 6 mph (10 km/h) | 98% | 0.352% |
| 22:00 01:00 | | Chance of snow. Precipitation: 0.04 in (1.125 mm). | 32°F (0°C) | 5 mph (8 km/h) | 99% | 0.347% |
| Friday, January 3 | sunrise: 07:37 sunset: 16:28 |
| Low around 25°F (-4°C), high around 33°F (1°C). Chance of snow all night and day. Estimated precipitation: 0.19 in (4.8125 mm). Overcast skies. Wind: 11 mph (18 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Chance of snow. Precipitation: 0.04 in (1.0625 mm). | 32°F (0°C) | 5 mph (8 km/h) | 99% | 0.343% |
| 04:00 07:00 | | Chance of light snow. Precipitation: 0.03 in (0.6875 mm). | 31°F (-0°C) | 6 mph (10 km/h) | 98% | 0.34% |
| 07:00 10:00 | | Chance of light snow. Precipitation: 0.03 in (0.6875 mm). | 32°F (0°C) | 9 mph (14 km/h) | 99% | 0.338% |
| 10:00 13:00 | | Chance of light snow. Precipitation: 0.02 in (0.5 mm). | 33°F (1°C) | 11 mph (17 km/h) | 98% | 0.346% |
| 13:00 16:00 | | Chance of light snow. Precipitation: 0.02 in (0.625 mm). | 32°F (-0°C) | 11 mph (17 km/h) | 97% | 0.348% |
| 16:00 19:00 | | Chance of light snow. Precipitation: 0.02 in (0.625 mm). | 28°F (-2°C) | 11 mph (18 km/h) | 95% | 0.343% |
| 19:00 22:00 | | Chance of light snow. Precipitation: 0.01 in (0.3125 mm). | 27°F (-3°C) | 11 mph (18 km/h) | 93% | 0.34% |
| 22:00 01:00 | | Chance of light snow. Precipitation: 0.01 in (0.3125 mm). | 25°F (-4°C) | 11 mph (18 km/h) | 94% | 0.338% |
| Saturday, January 4 | sunrise: 07:37 sunset: 16:29 |
| Low around 14°F (-10°C), high around 25°F (-4°C). Chance of light snow all night and all morning (until 1 pm). Estimated precipitation: 0.05 in (1.3125 mm). Considerable cloudiness. Wind: 12 mph (19 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Chance of light snow. Precipitation: 0.01 in (0.3125 mm). | 24°F (-4°C) | 11 mph (18 km/h) | 93% | 0.338% |
| 04:00 07:00 | | Chance of light snow. Precipitation: 0.01 in (0.3125 mm). | 22°F (-6°C) | 11 mph (17 km/h) | 92% | 0.338% |
| 07:00 10:00 | | Chance of light snow. Precipitation: 0.01 in (0.25 mm). | 21°F (-6°C) | 12 mph (19 km/h) | 89% | 0.338% |
| 10:00 13:00 | | Chance of light snow. Precipitation: 0.01 in (0.1875 mm). | 22°F (-6°C) | 12 mph (19 km/h) | 86% | 0.339% |
| 13:00 16:00 | | Overcast. Precipitation: 0.01 in (0.1875 mm). | 21°F (-6°C) | 11 mph (18 km/h) | 86% | 0.34% |
| 16:00 19:00 | | Partly cloudy. Precipitation: 0 in (0.0625 mm). | 19°F (-7°C) | 11 mph (17 km/h) | 83% | 0.341% |
| 19:00 22:00 | | Times of clear skies and clouds. | 17°F (-8°C) | 10 mph (16 km/h) | 86% | 0.343% |
| 22:00 01:00 | | Clear. | 14°F (-10°C) | 9 mph (15 km/h) | 88% | 0.345% |
Cornwall (latitude 45°02'N, longitude 074°44'W)
Local Time:
Cornwall is in the "America/Toronto" timezone.
The "America/Toronto" timezone uses a Standard Time (ST) / Daylight Saving Time (DST) alternation scheme, and it currently is in ST (since Sunday, 3 November 2024, 01:00 AM local time). During ST, the timezone abbreviation is EST and the offset to Universal Time (UTC, GMT or Zulu) is -5:00 hours.
Cornwall will exit standard time (entering DST) on Sunday, 9 March 2025, at 02:00 AM local time, when clocks will be turned forward 1 hour to Sunday, 9 March 2025, 03:00 AM local daylight time. During DST, the timezone abbreviation is EDT and the offset to UTC will be -4:00 hours.