Live Weather & Forecast
Weather in Perth South
Ontario, Canada · Real-time conditions & 3-day outlook
6°C
Feels like 2°C
43°F / Feels 35°F
Light rain
Perth South, Ontario
🌙 Nighttime
Updated: 2026-04-25 02:30
Humidity
87%
Wind
24.5 km/h E
Wind Gust
36.2 km/h
Pressure
1008 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0.19 mm
Cloud Cover
100%
Dew Point
0.1°C
Wind Degree
84°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
185.9 μg/m³
NO₂
5.8 μg/m³
O₃
79 μg/m³
SO₂
2.9 μg/m³
PM 2.5
5.2 μg/m³
PM 10
5.5 μg/m³
Today's Hourly Forecast
24-hour breakdown for Perth South, Ontario
12 AM
8°
Patchy rain nearby
1 AM
7°
Patchy rain nearby
2 AM
6°
Light rain
3 AM
6°
Light drizzle
4 AM
6°
Light drizzle
5 AM
6°
Light rain
6 AM
6°
Light rain
7 AM
6°
Light rain
8 AM
6°
Mist
9 AM
6°
Patchy rain nearby
10 AM
7°
Patchy rain nearby
11 AM
7°
Patchy rain nearby
12 PM
6°
Patchy rain nearby
1 PM
6°
Overcast
2 PM
6°
Overcast
3 PM
6°
Overcast
4 PM
7°
Cloudy
5 PM
8°
Cloudy
6 PM
8°
Cloudy
7 PM
8°
Partly Cloudy
8 PM
7°
Sunny
9 PM
6°
Clear
10 PM
5°
Clear
11 PM
5°
Clear
3-Day Forecast
Daily overview for Perth South, Ontario
Today
Moderate rain
9°
/
5°
🌧️ 87% chance of rain
💧 Avg. humidity: 80%
💨 Max wind: 27 km/h
🌧️ Total precip: 5.84 mm
☀️ UV Index: 3.6
🌅 Sunrise: 06:27 AM
🌇 Sunset: 08:19 PM
🌙 Waxing Gibbous
🌑 Moon: 60% lit
Sun, Apr 26
Cloudy
15°
/
4°
🌧️ 0% chance of rain
💧 Avg. humidity: 74%
💨 Max wind: 18.7 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 6.4
🌅 Sunrise: 06:25 AM
🌇 Sunset: 08:20 PM
🌙 Waxing Gibbous
🌑 Moon: 70% lit
Mon, Apr 27
Sunny
19°
/
5°
🌧️ 0% chance of rain
💧 Avg. humidity: 68%
💨 Max wind: 29.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 6.5
🌅 Sunrise: 06:24 AM
🌇 Sunset: 08:21 PM
🌙 Waxing Gibbous
🌑 Moon: 79% lit
Best Time to Visit Perth South
Plan your trip to Perth South, Canada around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Perth South?
Current conditions in Perth South: Light rain, temperature 6°C, humidity 87%.
What is the best time to visit Perth South?
The best time to visit Perth South is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Perth South?
Perth South is located at approximately 43.3° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Perth South?
The wettest period in Perth South is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Perth South?
For visits to Perth South during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Perth South in 2026?
View the 2026 public holidays for Perth South on our Holidays page.
What are the GPS coordinates used for the weather forecast in Perth South?
The weather forecast for Perth South uses coordinates 43.3117, -81.1365.
What is the current temperature outside in Perth South?
The current outdoor temperature in Perth South is 6°C (43°F) with light rain.
What is the hourly weather forecast for Perth South today?
Today's hour-by-hour weather breakdown for Perth South is shown in the Hourly Forecast section above, including temperature, rain chance, and conditions for each hour of the day.
What is the weather in Perth South tomorrow hour by hour?
Tomorrow's forecast for Perth South shows a high of 15°C and a low of 4°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in Perth South?
There is a 87% chance of rain in Perth South today. Check the hourly forecast above for a time-by-time breakdown of when rain is most likely.
Is it going to rain today in Perth South?
Yes, there is a 87% chance of rain in Perth South today — consider carrying an umbrella. Check the hourly forecast above for the most likely rain windows.