Live Weather & Forecast
Weather in Perth
Ontario, Canada · Real-time conditions & 3-day outlook
4°C
Feels like 1°C
40°F / Feels 34°F
Clear
Perth, Ontario
🌙 Nighttime
Updated: 2026-04-25 02:30
Humidity
55%
Wind
12.2 km/h ENE
Wind Gust
22.5 km/h
Pressure
1016 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
-2.8°C
Wind Degree
76°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
154.9 μg/m³
NO₂
7.9 μg/m³
O₃
49 μg/m³
SO₂
3.7 μg/m³
PM 2.5
4.9 μg/m³
PM 10
5 μg/m³
Today's Hourly Forecast
24-hour breakdown for Perth, Ontario
12 AM
6°
Clear
1 AM
5°
Clear
2 AM
4°
Clear
3 AM
3°
Clear
4 AM
3°
Clear
5 AM
2°
Clear
6 AM
2°
Clear
7 AM
3°
Sunny
8 AM
4°
Sunny
9 AM
5°
Sunny
10 AM
7°
Sunny
11 AM
8°
Sunny
12 PM
9°
Sunny
1 PM
10°
Overcast
2 PM
10°
Overcast
3 PM
11°
Overcast
4 PM
11°
Overcast
5 PM
10°
Overcast
6 PM
10°
Sunny
7 PM
9°
Sunny
8 PM
8°
Sunny
9 PM
7°
Overcast
10 PM
7°
Overcast
11 PM
6°
Overcast
3-Day Forecast
Daily overview for Perth, Ontario
Today
Partly Cloudy
11°
/
1°
🌧️ 0% chance of rain
💧 Avg. humidity: 60%
💨 Max wind: 20.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 5.1
🌅 Sunrise: 06:02 AM
🌇 Sunset: 08:02 PM
🌙 Waxing Gibbous
🌑 Moon: 60% lit
Sun, Apr 26
Sunny
15°
/
3°
🌧️ 0% chance of rain
💧 Avg. humidity: 69%
💨 Max wind: 13 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 6
🌅 Sunrise: 06:01 AM
🌇 Sunset: 08:03 PM
🌙 Waxing Gibbous
🌑 Moon: 70% lit
Mon, Apr 27
Sunny
19°
/
5°
🌧️ 0% chance of rain
💧 Avg. humidity: 68%
💨 Max wind: 8.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 6.3
🌅 Sunrise: 05:59 AM
🌇 Sunset: 08:05 PM
🌙 Waxing Gibbous
🌑 Moon: 79% lit
Best Time to Visit Perth
Plan your trip to Perth, 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?
Current conditions in Perth: Clear, temperature 4°C, humidity 55%.
What is the best time to visit Perth?
The best time to visit Perth is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Perth?
Perth is located at approximately 44.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Perth?
The wettest period in Perth is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Perth?
For visits to Perth 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 in 2026?
View the 2026 public holidays for Perth on our Holidays page.
What are the GPS coordinates used for the weather forecast in Perth?
The weather forecast for Perth uses coordinates 44.8992, -76.2487.
What is the current temperature outside in Perth?
The current outdoor temperature in Perth is 4°C (39°F) with clear.
What is the hourly weather forecast for Perth today?
Today's hour-by-hour weather breakdown for Perth 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 tomorrow hour by hour?
Tomorrow's forecast for Perth shows a high of 15°C and a low of 3°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in Perth?
Rain is not expected in Perth today. Current forecast shows no significant rain probability.
Is it going to rain today in Perth?
No, rain is not forecast for Perth today. Current conditions show clear to partly cloudy skies.