Live Weather & Forecast
Weather in Bolton
Ontario, Canada · Real-time conditions & 3-day outlook
6°C
Feels like 3°C
43°F / Feels 37°F
Light rain
Bolton, Ontario
🌙 Nighttime
Updated: 2026-04-25 02:30
Humidity
75%
Wind
18 km/h ESE
Wind Gust
24.6 km/h
Pressure
1012 mb
Visibility
19 km
UV Index
0
(Low)
Precipitation
0.56 mm
Cloud Cover
100%
Dew Point
2.4°C
Wind Degree
101°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
177.9 μg/m³
NO₂
9 μg/m³
O₃
76 μg/m³
SO₂
3.9 μg/m³
PM 2.5
5.7 μg/m³
PM 10
5.9 μg/m³
Today's Hourly Forecast
24-hour breakdown for Bolton, Ontario
12 AM
7°
Moderate or heavy rain shower
1 AM
6°
Heavy rain at times
2 AM
6°
Light rain
3 AM
6°
Patchy rain nearby
4 AM
6°
Patchy rain nearby
5 AM
6°
Light drizzle
6 AM
6°
Light rain
7 AM
5°
Moderate rain
8 AM
5°
Moderate rain
9 AM
5°
Light rain
10 AM
5°
Moderate rain
11 AM
6°
Moderate rain
12 PM
5°
Light rain
1 PM
5°
Light drizzle
2 PM
5°
Light drizzle
3 PM
6°
Patchy light drizzle
4 PM
7°
Patchy rain nearby
5 PM
7°
Overcast
6 PM
7°
Cloudy
7 PM
7°
Overcast
8 PM
7°
Overcast
9 PM
6°
Partly Cloudy
10 PM
5°
Partly Cloudy
11 PM
5°
Partly Cloudy
3-Day Forecast
Daily overview for Bolton, Ontario
Today
Heavy rain
8°
/
4°
🌧️ 87% chance of rain
💧 Avg. humidity: 83%
💨 Max wind: 22.3 km/h
🌧️ Total precip: 25.58 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:19 AM
🌇 Sunset: 08:14 PM
🌙 Waxing Gibbous
🌑 Moon: 60% lit
Sun, Apr 26
Sunny
15°
/
3°
🌧️ 0% chance of rain
💧 Avg. humidity: 64%
💨 Max wind: 13.3 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 6.3
🌅 Sunrise: 06:17 AM
🌇 Sunset: 08:15 PM
🌙 Waxing Gibbous
🌑 Moon: 70% lit
Mon, Apr 27
Sunny
17°
/
5°
🌧️ 0% chance of rain
💧 Avg. humidity: 62%
💨 Max wind: 20.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 6.6
🌅 Sunrise: 06:16 AM
🌇 Sunset: 08:16 PM
🌙 Waxing Gibbous
🌑 Moon: 79% lit
Best Time to Visit Bolton
Plan your trip to Bolton, 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 Bolton?
Current conditions in Bolton: Light rain, temperature 6°C, humidity 75%.
What is the best time to visit Bolton?
The best time to visit Bolton is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Bolton?
Bolton is located at approximately 43.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Bolton?
The wettest period in Bolton is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Bolton?
For visits to Bolton during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Bolton in 2026?
View the 2026 public holidays for Bolton on our Holidays page.
What are the GPS coordinates used for the weather forecast in Bolton?
The weather forecast for Bolton uses coordinates 43.8795, -79.7383.
What is the current temperature outside in Bolton?
The current outdoor temperature in Bolton is 6°C (43°F) with light rain.
What is the hourly weather forecast for Bolton today?
Today's hour-by-hour weather breakdown for Bolton 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 Bolton tomorrow hour by hour?
Tomorrow's forecast for Bolton 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 Bolton?
There is a 87% chance of rain in Bolton 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 Bolton?
Yes, there is a 87% chance of rain in Bolton today — consider carrying an umbrella. Check the hourly forecast above for the most likely rain windows.