Cornwall Weather Conditions
Current Temperature Level
Cornwall Weather Conditions
Current Temperature Level
Last Updated: 2026-09-28 12:15 (Local Time)
Patchy rain nearby
Occasional light rain is expected and humidity will be 88%, with winds at 19.1 km/h.14°C / 10°C
Sunrise
06:53 AM11hrs 52min
Sunset
06:45 PMSeptemberWeather Overview
No. of days:
Sunny
14
Cloudy
0
Rainy
2
Snowy
0
The monthly weather averages in Cornwall consist of 14 sunny days, 0 cloudy days, 2 rainy days, and 0 snowy days.
Cornwall's Locations Weather Conditions
Canada's Hottest Cities - September 2026
1.
London, Ontario
20 °C
Sunny
40%
4
13.3 kmph / NNE
2.
Windsor, Ontario
20 °C
Sunny
49%
4.3
13.3 kmph / NNE
3.
Chatham, Ontario
20 °C
Sunny
55%
4.3
13 kmph / N
4.
Bluewater, Ontario
20 °C
Sunny
40%
4.2
13 kmph / N
5.
Grand Bend, Ontario
20 °C
Sunny
40%
4.2
13 kmph / N
6.
Sault Ste. Marie, Ontario
20 °C
Sunny
46%
3.5
6.1 kmph / NNE
7.
Belleville, Ontario
20 °C
Partly Cloudy
56%
3.5
13 kmph / NNE
8.
Sarnia, Ontario
20 °C
Sunny
57%
4.2
18.7 kmph / NNE
9.
Loyalist, Ontario
19 °C
Partly Cloudy
61%
3.6
14.4 kmph / NE
10.
Kingston, Ontario
19 °C
Partly Cloudy
61%
3.6
14.4 kmph / NE
Last Updated: 28 Sept 2026, 04:36 PM
City Weather RankingsFAQs About Cornwall Weather Conditions
1. What is the current temperature in Cornwall today - 28 September 2026?
1. What is the current temperature in Cornwall today - 28 September 2026?
The current temperature in Cornwall is 13°C, with a feels-like temperature of 11°C. Today's forecast shows a high of 14°C and a low of 10°C, giving a 4 degree swing through the day as of 12:15 PM 28 September 2026.
2. What are the current weather parameters in Cornwall today?
2. What are the current weather parameters in Cornwall today?
Here is a complete overview of Cornwall's current weather conditions as of 12:15 PM 28 September 2026: Condition : Patchy rain nearby Temperature : 13°C Cool (Feels like 11°C) Humidity : 91% Wind Speed : 15.8 km/h from NE (41 degrees), Gust 8.3 m/s UV Index : 1.3 (Low Air Pressure : 1015 mb Cloud Cover : 100% Visibility : 10 km Precipitation : 0.06 mm (76% chance of rain)
3. What is the 10-day weather forecast for Cornwall from 12:15 PM 28 September 2026?
3. What is the 10-day weather forecast for Cornwall from 12:15 PM 28 September 2026?
From 12:15 PM 28 September 2026, Cornwall's 10-day forecast shows this trend: Today (Sep. 28) : Temp. 12°C, Hum. 88% and Patchy rain nearby condition. Tuesday (Sep. 29) : Temp. 14°C, Hum. 78% and Sunny condition. Wednesday (Sep. 30) : Temp. 15°C, Hum. 84% and Overcast condition. Thursday (Oct. 1) : Temp. 21°C, Hum. 69% and Overcast condition. Friday (Oct. 2) : Temp. 15°C, Hum. 68% and Sunny condition. Saturday (Oct. 3) : Temp. 8°C, Hum. 60% and Sunny condition. Sunday (Oct. 4) : Temp. 10°C, Hum. 60% and Overcast condition. Monday (Oct. 5) : Temp. 13°C, Hum. 91% and Rain Shower condition. Tuesday (Oct. 6) : Temp. 13°C, Hum. 76% and Rain Showers condition. Wednesday (Oct. 7) : Temp. 13°C, Hum. 82% and Rain Showers condition.
4. Will it rain in Cornwall today?
4. Will it rain in Cornwall today?
As of 12:15 PM 28 September 2026, yes — Cornwall is currently experiencing rainfall with 0.06 mm of precipitation. This is expected to temporarily improve AQI by washing pollutants out of the atmosphere.
5. What is the monthly weather forecast for Cornwall in September 2026?
5. What is the monthly weather forecast for Cornwall in September 2026?
September 2026 in Cornwall is forecast to have 14 sunny days, 2 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 5°C to highs of 28°C.
6. How does the weather in Cornwall affect air quality?
6. How does the weather in Cornwall affect air quality?
Weather directly impacts air quality in Cornwall. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.




