Cornwall, ON 14 Day Weather - WeatherWorld.com

Feedback E-mail the Weather

Quick Weather Clicks

Cornwall, ON Weather - 14-Day Weather Forecast

Current Conditions

Settings
Cornwall ON Weather - Sunny
Sunny
40°F
Updated 9:33 am
Feels Like 34°F
Humidity 66%
Wind W 11 mph
Barometer  30.12 in
Visibility 6 mi
Cornwall ON Weather - Sunny
Sunny
5°C
Updated 9:33 am
Feels Like 1°C
Humidity 66%
Wind W 18 km/h
Barometer  102 kPa
Visibility 10 km
Cornwall, ON Weather and Current Conditionscornwall on weather forecast

Cornwall, ON Weather Forecast

Cornwall Ontario WeatherCornwall, Ontario Weather Weather Forecast
14 day API Cornwall, ON weather forecast. Note. Our 7-day weather forecast for Cornwall, Ontario is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Cornwall, ON Weather Forecast Dated: 933 AM Tue Oct 06 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Tuesday, October 6, 2026

Mid-Morning
Cornwall Weather - 2026-10-06 - Morning - Sunny
5°C 40°F
Sunny
Mid-Afternoon
Cornwall Weather - 2026-10-06 - Afternoon - Sunny
12°C 53°F
Sunny
Early-Evening
Cornwall Weather - 2026-10-06 - Evening - Sunny
7°C 46°F
Sunny
Brisk around 12°C 53°F, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the W to the SSW at 11 km/h 7 mph.

Wednesday, October 7, 2026

Mid-Morning
Cornwall Weather - 2026-10-07 - Morning - Overcast
12°C 53°F
Overcast
Mid-Afternoon
Cornwall Weather - 2026-10-07 - Afternoon - Scattered Showers
16°C 61°F
Scattered Showers
Early-Evening
Cornwall Weather - 2026-10-07 - Evening - Light Showers
14°C 56°F
Light Showers
Mildly cool near 16°C 61°F, scattered downpours possible, with increasing humidity and barometric pressure falling. Winds blowing from the SW at 21 km/h 13 mph. Gusts up to 50 km/h 31 mph.

Thursday, October 8, 2026

Mid-Morning
Cornwall Weather - 2026-10-08 - Morning - Sunny
12°C 53°F
Sunny
Mid-Afternoon
Cornwall Weather - 2026-10-08 - Afternoon - Overcast
16°C 61°F
Overcast
Early-Evening
Cornwall Weather - 2026-10-08 - Evening - Light Showers
12°C 53°F
Light Showers
Comfortable at 16°C 61°F, dry most of the day, with showers developing late, with lower humidity and steady pressure. Winds moving from the SW to the W at 14 km/h 8 mph. Gusts up to 34 km/h 21 mph.

Friday, October 9, 2026

Mid-Morning
Cornwall Weather - 2026-10-09 - Morning - Cloudy
8°C 47°F
Cloudy
Mid-Afternoon
Cornwall Weather - 2026-10-09 - Afternoon - Cloudy
12°C 53°F
Cloudy
Early-Evening
Cornwall Weather - 2026-10-09 - Evening - Sunny
7°C 44°F
Sunny
Crisp with a high near 12°C 53°F, overcast in the morning, becoming cloudy through the afternoon and evening, with lower humidity and barometric pressure rising. Winds swinging from the WNW to the NNE at 6 km/h 4 mph.

Saturday, October 10, 2026

Mid-Morning
Cornwall Weather - 2026-10-10 - Morning - Partly Cloudy
10°C 50°F
Partly Cloudy
Mid-Afternoon
Cornwall Weather - 2026-10-10 - Afternoon - Overcast
15°C 59°F
Overcast
Early-Evening
Cornwall Weather - 2026-10-10 - Evening - Cloudy
12°C 53°F
Cloudy
Refreshing around 15°C 59°F, partly cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds shifting from the SSW to the ESE at 7 km/h 4 mph.

Sunday, October 11, 2026

Mid-Morning
Cornwall Weather - 2026-10-11 - Morning - Overcast
17°C 63°F
Overcast
Mid-Afternoon
Cornwall Weather - 2026-10-11 - Afternoon - Overcast
23°C 73°F
Overcast
Early-Evening
Cornwall Weather - 2026-10-11 - Evening - Overcast
21°C 69°F
Overcast
Pleasant near 23°C 73°F, overcast throughout the day, with steady humidity and barometric pressure falling. Winds SW at 26 km/h 16 mph. Gusts up to 59 km/h 36 mph.

Monday, October 12, 2026

Mid-Morning
Cornwall Weather - 2026-10-12 - Morning - Scattered Showers
16°C 61°F
Scattered Showers
Mid-Afternoon
Cornwall Weather - 2026-10-12 - Afternoon - Light Rain
17°C 62°F
Light Rain
Early-Evening
Cornwall Weather - 2026-10-12 - Evening - Drizzle
10°C 50°F
Drizzle
Comfortable at 17°C 62°F, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds switching from the SW to the NE at 13 km/h 8 mph.

Tuesday, October 13, 2026

Mid-Morning
Cornwall Weather - 2026-10-13 - Morning - Overcast
7°C 44°F
Overcast
Mid-Afternoon
Cornwall Weather - 2026-10-13 - Afternoon - Overcast
10°C 50°F
Overcast
Early-Evening
Cornwall Weather - 2026-10-13 - Evening - Overcast
9°C 48°F
Overcast
Crisp with a high near 10°C 50°F, overcast throughout the day, with lower humidity and steady pressure.

Wednesday, October 14, 2026

Mid-Morning
Cornwall Weather - 2026-10-14 - Morning - Sunny
6°C 42°F
Sunny
Mid-Afternoon
Cornwall Weather - 2026-10-14 - Afternoon - Overcast
13°C 55°F
Overcast
Early-Evening
Cornwall Weather - 2026-10-14 - Evening - Sunny
8°C 47°F
Sunny
Brisk around 13°C 55°F, cloudy through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds moving from the SW to the NW at 16 km/h 10 mph.

Thursday, October 15, 2026

Mid-Morning
Cornwall Weather - 2026-10-15 - Morning - Overcast
1°C 35°F
Overcast
Mid-Afternoon
Cornwall Weather - 2026-10-15 - Afternoon - Sunny
8°C 47°F
Sunny
Early-Evening
Cornwall Weather - 2026-10-15 - Evening - Sunny
4°C 40°F
Sunny
Cool and brisk at 8°C 47°F, partly cloudy through the afternoon, turning sunny this evening, with lower humidity and steady pressure.

Friday, October 16, 2026

Mid-Morning
Cornwall Weather - 2026-10-16 - Morning - Overcast
4°C 39°F
Overcast
Mid-Afternoon
Cornwall Weather - 2026-10-16 - Afternoon - Overcast
15°C 58°F
Overcast
Early-Evening
Cornwall Weather - 2026-10-16 - Evening - Overcast
12°C 53°F
Overcast
Comfortable at 15°C 58°F, partly cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling. Winds increasing from the SE at 6 km/h 4 mph to S at 19 km/h 12 mph. Gusts up to 45 km/h 28 mph.

Saturday, October 17, 2026

Mid-Morning
Cornwall Weather - 2026-10-17 - Morning - Overcast
14°C 57°F
Overcast
Mid-Afternoon
Cornwall Weather - 2026-10-17 - Afternoon - Overcast
16°C 62°F
Overcast
Early-Evening
Cornwall Weather - 2026-10-17 - Evening - Sunny
14°C 57°F
Sunny
Cool with a high near 16°C 62°F, overcast through the afternoon, turning partly cloudy this evening, with increasing humidity and steady pressure. Winds shifting from the S to the ESE at 8 km/h 5 mph.

Sunday, October 18, 2026

Mid-Morning
Cornwall Weather - 2026-10-18 - Morning - Sunny
13°C 55°F
Sunny
Mid-Afternoon
Cornwall Weather - 2026-10-18 - Afternoon - Partly Cloudy
21°C 69°F
Partly Cloudy
Early-Evening
Cornwall Weather - 2026-10-18 - Evening - Overcast
16°C 61°F
Overcast
Enjoyable around 21°C 69°F, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds blowing from the ESE at 14 km/h 9 mph. Gusts up to 32 km/h 20 mph.

Monday, October 19, 2026

Mid-Morning
Cornwall Weather - 2026-10-19 - Morning - Rain
13°C 55°F
Rain
Mid-Afternoon
Cornwall Weather - 2026-10-19 - Afternoon - Light Fog
12°C 53°F
Light Fog
Early-Evening
Cornwall Weather - 2026-10-19 - Evening - Drizzle
10°C 50°F
Drizzle
Cool and brisk at 12°C 53°F, early showers and late showers with a lull during the afternoon, with increasing humidity and steady pressure. Winds decreasing from E 25 km/h 15 mph to SW 11 km/h 6 mph.

Trending Headlines

Cornwall, ON Weather Radar Map

Use the map search tool if you want to place a location marker on the radar map...

Cornwall, ON 7 Day Weather

National Two Day Weather Forecast


E-mail the Cornwall Weather Forecast

Voice your opinion or tell us about page issues...

Weather by the Numbers

Tue, 6th
Cornwall ON Weather - Tuesday, Oct 6, 2026 - Sunny
Hi: 12°C 53°F
Lo: 2°C 36°F
Sunrise 07:03 AM
Sunset 06:30 PM
Wind WNW 18 km/h11 mph
Dew Point -2°C28°F
uv Index 3
Barometric Pressure 101.9 kPa30.09 in
POP 2% *
Humidity 44%
Wed, 7th
Cornwall ON Weather - Wednesday, Oct 7, 2026 - Patchy Rain Nearby
Hi: 19°C 66°F
Lo: 4°C 39°F
Sunrise 07:05 AM
Sunset 06:28 PM
Wind SW 23 km/h15 mph
Dew Point 4°C39°F
uv Index 2
Barometric Pressure 100.8 kPa29.77 in
POP 11% *
Humidity 44%
Thu, 8th
Cornwall ON Weather - Thursday, Oct 8, 2026 - Sunny
Hi: 19°C 66°F
Lo: 9°C 48°F
Sunrise 07:06 AM
Sunset 06:26 PM
Wind W 24 km/h15 mph
Dew Point 7°C45°F
uv Index 3
Barometric Pressure 100.9 kPa29.8 in
POP 3% *
Humidity 55%
Fri, 9th
Cornwall ON Weather - Friday, Oct 9, 2026 - Partly Cloudy
Hi: 13°C 56°F
Lo: 5°C 42°F
Sunrise 07:07 AM
Sunset 06:24 PM
Wind WNW 23 km/h14 mph
Dew Point 1°C34°F
uv Index 3
Barometric Pressure 102.1 kPa30.15 in
POP 7% *
Humidity 49%
Sat, 10th
Cornwall ON Weather - Saturday, Oct 10, 2026 - Partly Cloudy
Hi: 16°C 61°F
Lo: 4°C 39°F
Sunrise 07:08 AM
Sunset 06:22 PM
Wind SW 11 km/h7 mph
Dew Point 7°C44°F
uv Index 5
Barometric Pressure 102.8 kPa30.36 in
POP 6% *
Humidity 55%
Sun, 11th
Cornwall ON Weather - Sunday, Oct 11, 2026 - Overcast
Hi: 24°C 76°F
Lo: 12°C 53°F
Sunrise 07:10 AM
Sunset 06:21 PM
Wind SW 25 km/h15 mph
Dew Point 12°C53°F
uv Index 5
Barometric Pressure 101.9 kPa30.09 in
POP 13% *
Humidity 55%
Mon, 12th
Cornwall ON Weather - Monday, Oct 12, 2026 - Patchy Rain Nearby
Hi: 19°C 66°F
Lo: 6°C 43°F
Sunrise 07:11 AM
Sunset 06:19 PM
Wind SW 13 km/h8 mph
Dew Point 13°C56°F
uv Index 4
Barometric Pressure 101.1 kPa29.85 in
POP 20% *
Humidity 77%
Tue, 13th
Cornwall ON Weather - Tuesday, Oct 13, 2026 - Patchy Rain Nearby
Hi: 13°C 55°F
Lo: 3°C 37°F
Sunrise 07:12 AM
Sunset 06:17 PM
Wind NE 10 km/h6 mph
Dew Point 2°C36°F
uv Index 2
Barometric Pressure 101.7 kPa30.03 in
POP 16% *
Humidity 64%
Wed, 14th
Cornwall ON Weather - Wednesday, Oct 14, 2026 - Cloudy
Hi: 16°C 60°F
Lo: 3°C 37°F
Sunrise 07:14 AM
Sunset 06:15 PM
Wind W 10 km/h6 mph
Dew Point 2°C36°F
uv Index 3
Barometric Pressure 101.6 kPa30 in
POP 5% *
Humidity 54%
Thu, 15th
Cornwall ON Weather - Thursday, Oct 15, 2026 - Partly Cloudy
Hi: 20°C 68°F
Lo: 10°C 49°F
Sunrise 07:15 AM
Sunset 06:14 PM
Wind NE 9 km/h5 mph
Dew Point -6°C21°F
uv Index 3
Barometric Pressure 103 kPa30.42 in
POP 8% *
Humidity 40%
Fri, 16th
Cornwall ON Weather - Friday, Oct 16, 2026 - Overcast
Hi: 22°C 71°F
Lo: 17°C 63°F
Sunrise 07:16 AM
Sunset 06:12 PM
Wind S 9 km/h6 mph
Dew Point -5°C24°F
uv Index 3
Barometric Pressure 102.9 kPa30.39 in
POP 9% *
Humidity 30%
Sat, 17th
Cornwall ON Weather - Saturday, Oct 17, 2026 - Overcast
Hi: 17°C 63°F
Lo: 8°C 46°F
Sunrise 07:18 AM
Sunset 06:10 PM
Wind SSW 15 km/h9 mph
Dew Point 7°C45°F
uv Index 4
Barometric Pressure 102 kPa30.12 in
POP 14% *
Humidity 58%
Sun, 18th
Cornwall ON Weather - Sunday, Oct 18, 2026 - Cloudy
Hi: 8°C 47°F
Lo: 2°C 35°F
Sunrise 07:19 AM
Sunset 06:09 PM
Wind ESE 15 km/h9 mph
Dew Point 9°C48°F
uv Index 4
Barometric Pressure 102.1 kPa30.15 in
POP 3% *
Humidity 51%
Mon, 19th
Cornwall ON Weather - Monday, Oct 19, 2026 - Light Drizzle
Hi: 6°C 43°F
Lo: 0°C 32°F
Sunrise 07:20 AM
Sunset 06:07 PM
Wind E 24 km/h15 mph
Dew Point 11°C52°F
uv Index 3
Barometric Pressure 101.4 kPa29.94 in
POP 81% *
Humidity 91%
* POP = Probability of Precipitation. Data for 12:00 PM.