Live Weather & Forecast

Weather in Mastone

Ontario, Canada · Real-time conditions & 3-day outlook

Flag of Canada
Clear
1°C
Feels like 0°C
34°F / Feels 32°F
Clear
Mastone, Ontario
🌙 Nighttime
Updated: 2026-04-25 01:15
💧
Humidity
82%
💨
Wind
7.9 km/h NNE
🌬️
Wind Gust
16.6 km/h
🌡️
Pressure
1013 mb
👁️
Visibility
10 km
☀️
UV Index
0 (Low)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
0%
💦
Dew Point
-1.7°C
🌐
Wind Degree
26°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
158.8 μg/m³
NO₂
1.8 μg/m³
O₃
73 μg/m³
SO₂
0.8 μg/m³
PM 2.5
2.3 μg/m³
PM 10
2.6 μg/m³

Weather Alerts 2

Met · Moderate · Future
yellow warning - rainfall - in effect

Rain, heavy at times continues. The frozen ground has a reduced ability to absorb this rainfall. What: Total rainfall amounts of 30 to 50 mm. When: Continuing until this evening. Additional Information: A stalled cold front continues to bring rain, heavy at times, to the area today. This front will move out of the area by evening, bringing an end to the rain. ### Water will likely pool on ro...

Don't drive through flooded roadways. Watch for washouts near rivers, creeks and culverts.

Effective: 2026-04-24T10:21:02-00:00  ·  Expires: 2026-04-25T02:21:02-00:00
Met · Moderate · Future
yellow warning - rainfall - in effect

Rain, heavy at times continues. The frozen ground has a reduced ability to absorb this rainfall. What: Total rainfall amounts of 30 to 50 mm. When: Continuing until this evening. Additional Information: A stalled cold front continues to bring rain, heavy at times, to the area today. This front will move out of the area by evening, bringing an end to the rain. ### Water will likely pool on ro...

Don't drive through flooded roadways. Watch for washouts near rivers, creeks and culverts.

Effective: 2026-04-24T16:36:05-00:00  ·  Expires: 2026-04-25T08:02:05-00:00

Today's Hourly Forecast

24-hour breakdown for Mastone, Ontario

12 AM
Clear
2°
Clear
💧 84% 💨 6.5 km/h
1 AM
Clear
1°
Clear
💧 82% 💨 7.9 km/h
2 AM
Clear
1°
Clear
💧 84% 💨 4.7 km/h
3 AM
Clear
1°
Clear
💧 87% 💨 6.5 km/h
4 AM
Clear
1°
Clear
💧 88% 💨 5 km/h
5 AM
Clear
0°
Clear
💧 90% 💨 3.2 km/h
6 AM
Clear
0°
Clear
💧 90% 💨 2.5 km/h
7 AM
Sunny
1°
Sunny
💧 91% 💨 3.2 km/h
8 AM
Mist
2°
Mist
💧 94% 💨 2.9 km/h
9 AM
Sunny
4°
Sunny
💧 92% 💨 0.7 km/h
10 AM
Sunny
6°
Sunny
💧 84% 💨 1.4 km/h
11 AM
Sunny
7°
Sunny
💧 76% 💨 4.7 km/h
12 PM
Sunny
10°
Sunny
💧 66% 💨 6.8 km/h
1 PM
Partly Cloudy
11°
Partly Cloudy
💧 39% 💨 7.2 km/h
2 PM
Cloudy
12°
Cloudy
💧 35% 💨 7.9 km/h
3 PM
Overcast
13°
Overcast
💧 33% 💨 10.8 km/h
4 PM
Sunny
13°
Sunny
💧 32% 💨 11.2 km/h
5 PM
Partly Cloudy
13°
Partly Cloudy
💧 32% 💨 13.3 km/h
6 PM
Partly Cloudy
13°
Partly Cloudy
💧 34% 💨 11.9 km/h
7 PM
Partly Cloudy
12°
Partly Cloudy
💧 38% 💨 12.6 km/h
8 PM
Sunny
10°
Sunny
💧 49% 💨 8.3 km/h
9 PM
Sunny
8°
Sunny
💧 59% 💨 6.5 km/h
10 PM
Partly Cloudy
7°
Partly Cloudy
💧 65% 💨 5.4 km/h
11 PM
Partly Cloudy
7°
Partly Cloudy
💧 71% 💨 6.1 km/h

3-Day Forecast

Daily overview for Mastone, Ontario

Today
Sunny
Sunny
14° / 0°
🌧️ 0% chance of rain
💧 Avg. humidity: 66%
💨 Max wind: 13.3 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 5.1
🌅 Sunrise: 06:51 AM
🌇 Sunset: 09:09 PM
🌙 Waxing Gibbous
🌑 Moon: 60% lit
Sun, Apr 26
Patchy rain nearby
Patchy rain nearby
15° / 4°
🌧️ 86% chance of rain
💧 Avg. humidity: 64%
💨 Max wind: 16.2 km/h
🌧️ Total precip: 1.28 mm
☀️ UV Index: 5.1
🌅 Sunrise: 06:49 AM
🌇 Sunset: 09:11 PM
🌙 Waxing Gibbous
🌑 Moon: 70% lit
Mon, Apr 27
Moderate rain
Moderate rain
9° / 5°
🌧️ 86% chance of rain
💧 Avg. humidity: 84%
💨 Max wind: 18 km/h
🌧️ Total precip: 17.24 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:48 AM
🌇 Sunset: 09:12 PM
🌙 Waxing Gibbous
🌑 Moon: 79% lit

Best Time to Visit Mastone

Plan your trip to Mastone, 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.
← Back to Mastone 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Mastone?
Current conditions in Mastone: Clear, temperature 1°C, humidity 82%.
What is the best time to visit Mastone?
The best time to visit Mastone is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Mastone?
Mastone is located at approximately 49.2° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Mastone?
The wettest period in Mastone is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Mastone?
For visits to Mastone during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Mastone in?
Mastone is located in Canada, in the state of Ontario.
What are the public holidays in Mastone in 2026?
View the 2026 public holidays for Mastone on our Holidays page.
What are the GPS coordinates used for the weather forecast in Mastone?
The weather forecast for Mastone uses coordinates 49.2027, -89.8865.
What is the current temperature outside in Mastone?
The current outdoor temperature in Mastone is 1°C (34°F) with clear.
What is the hourly weather forecast for Mastone today?
Today's hour-by-hour weather breakdown for Mastone 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 Mastone tomorrow hour by hour?
Tomorrow's forecast for Mastone 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 Mastone?
Rain is not expected in Mastone today. Current forecast shows no significant rain probability.
Is it going to rain today in Mastone?
No, rain is not forecast for Mastone today. Current conditions show clear to partly cloudy skies.