Live Weather & Forecast

Weather in St. Mary's

Q: What is the current weather in St. Mary's?

Current conditions in St. Mary's: Patchy rain nearby, temperature 3°C, humidity 87%.

Q: What is the best time to visit St. Mary's?

The best time to visit St. Mary's is typically June – September. Warm, dry summers — ideal for outdoor activities.

Q: What are the GPS coordinates used for the weather forecast in St. Mary's?

The weather forecast for St. Mary's uses coordinates 46.9132, -53.5737.

Q: What is the current temperature outside in St. Mary's?

The current outdoor temperature in St. Mary's is 3°C (37°F) with patchy rain nearby.

Newfoundland and Labrador, Canada · Real-time conditions & 3-day outlook

3^°C

Feels like -2°C

38°F / Feels 29°F

Patchy rain nearby

St. Mary's, Newfoundland and Labrador

🌞 Daytime

Updated: 2026-04-25 11:45

💧

Humidity

87%

💨

Wind

26.6 km/h N

🌬️

Wind Gust

37.1 km/h

🌡️

Pressure

992 mb

👁️

Visibility

10 km

☀️

UV Index

0.7 (Low)

🌧️

Precipitation

0.01 mm

☁️

Cloud Cover

💦

Dew Point

1.8°C

🌐

Wind Degree

10°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)

141.7 μg/m³

NO₂

1.6 μg/m³

O₃

87 μg/m³

SO₂

1.1 μg/m³

PM 2.5

0.8 μg/m³

PM 10

0.8 μg/m³

Weather Alerts 2

Met · Moderate · Immediate

yellow warning - snowfall - in effect

Significant snowfall continues. Locations: St. John’s and vicinity and Avalon Peninsula Southeast. Total snowfall: 15 to 20 cm. Time span: until Saturday morning. Remarks: The snow is expected to be wet and heavy. As temperatures start to rise on Saturday morning, the snow will become mixed with rain then transition to rain on Saturday afternoon. ### Roads and walkways will likely be diffi...

Prepare for quickly changing and deteriorating travel conditions.

Effective: 2026-04-25T01:46:29-00:00 · Expires: 2026-04-25T17:00:29-00:00

Met · Moderate · Immediate

yellow warning - snowfall - in effect

Significant snowfall continues. Locations: St. John’s and vicinity and Avalon Peninsula Southeast. Additional snowfall: 2-4 cm. Time span: ending this morning. Remarks: The snow is expected to be wet and heavy. As temperatures start to rise this morning, the snow will become mixed with rain then transition to rain this afternoon. ### Roads and walkways will likely be difficult to navigate...

Prepare for quickly changing and deteriorating travel conditions.

Effective: 2026-04-25T08:05:42-00:00 · Expires: 2026-04-25T17:00:42-00:00

Today's Hourly Forecast

24-hour breakdown for St. Mary's, Newfoundland and Labrador

12 AM

1°

Blizzard

💧 94% 💨 42.5 km/h 🌧️ 100% ❄️ 92%

1 AM

1°

Blizzard

💧 95% 💨 43.2 km/h 🌧️ 100% ❄️ 90%

2 AM

1°

Blowing snow

💧 94% 💨 41.4 km/h 🌧️ 100% ❄️ 51%

3 AM

1°

Light snow

💧 95% 💨 37.1 km/h ❄️ 87%

4 AM

1°

Patchy rain nearby

💧 95% 💨 33.8 km/h 🌧️ 89%

5 AM

1°

Moderate snow

💧 95% 💨 33.5 km/h 🌧️ 100%

6 AM

1°

Light sleet

💧 97% 💨 31 km/h 🌧️ 100%

7 AM

1°

Patchy rain nearby

💧 97% 💨 31 km/h 🌧️ 100%

8 AM

2°

Light sleet

💧 97% 💨 30.2 km/h 🌧️ 100%

9 AM

2°

Light sleet

💧 97% 💨 33.5 km/h 🌧️ 100%

10 AM

2°

Light snow

💧 98% 💨 30.6 km/h 🌧️ 52%

11 AM

3°

Patchy rain nearby

💧 87% 💨 26.6 km/h 🌧️ 65%

12 PM

2°

Light sleet

💧 98% 💨 26.6 km/h 🌧️ 100%

1 PM

3°

Patchy rain nearby

💧 98% 💨 26.3 km/h 🌧️ 100%

2 PM

3°

Overcast

💧 98% 💨 24.1 km/h

3 PM

3°

Overcast

💧 97% 💨 25.6 km/h

4 PM

2°

Patchy rain nearby

💧 97% 💨 27.7 km/h 🌧️ 65%

5 PM

2°

Patchy rain nearby

💧 97% 💨 29.2 km/h 🌧️ 100%

6 PM

2°

Patchy rain nearby

💧 97% 💨 29.2 km/h 🌧️ 74%

7 PM

2°

Patchy rain nearby

💧 96% 💨 29.5 km/h 🌧️ 76%

8 PM

2°

Patchy rain nearby

💧 95% 💨 30.6 km/h 🌧️ 89%

9 PM

2°

Patchy rain nearby

💧 95% 💨 30.6 km/h 🌧️ 81%

10 PM

2°

Overcast

💧 95% 💨 29.2 km/h

11 PM

2°

Patchy rain nearby

💧 95% 💨 29.2 km/h 🌧️ 78%

3-Day Forecast

Daily overview for St. Mary's, Newfoundland and Labrador

Today

Patchy rain nearby

3° / 1°

🌧️ 90% chance of rain

❄️ 13% chance of snow

💧 Avg. humidity: 96%

💨 Max wind: 43.2 km/h

🌧️ Total precip: 2.01 mm

☀️ UV Index: 2.6

🌅 Sunrise: 05:58 AM

🌇 Sunset: 08:05 PM

🌙 Waxing Gibbous

🌑 Moon: 60% lit

Sun, Apr 26

Patchy rain nearby

4° / 1°

🌧️ 84% chance of rain

💧 Avg. humidity: 90%

💨 Max wind: 34.6 km/h

🌧️ Total precip: 0.28 mm

☀️ UV Index: 2.9

🌅 Sunrise: 05:56 AM

🌇 Sunset: 08:06 PM

🌙 Waxing Gibbous

🌑 Moon: 70% lit

Mon, Apr 27

Light snow

3° / -2°

🌧️ 0% chance of rain

❄️ 3% chance of snow

💧 Avg. humidity: 77%

💨 Max wind: 33.1 km/h

🌧️ Total precip: 0.08 mm

☀️ UV Index: 6

🌅 Sunrise: 05:55 AM

🌇 Sunset: 08:08 PM

🌙 Waxing Gibbous

🌑 Moon: 79% lit

Best Time to Visit St. Mary's

Plan your trip to St. Mary's, 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 St. Mary's 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in St. Mary's?

Current conditions in St. Mary's: Patchy rain nearby, temperature 3°C, humidity 87%.

What is the best time to visit St. Mary's?

The best time to visit St. Mary's is typically June – September. Warm, dry summers — ideal for outdoor activities.

What is the climate like in St. Mary's?

St. Mary's is located at approximately 46.9° latitude. It has a temperate climate with warm summers and cold winters.

Does it rain a lot in St. Mary's?

The wettest period in St. Mary's is typically during November – March. Cooler temperatures; some regions may experience rain or snow.

What should I pack for a trip to St. Mary's?

For visits to St. Mary's during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.

What country is St. Mary's in?

St. Mary's is located in Canada, in the state of Newfoundland and Labrador.

What are the public holidays in St. Mary's in 2026?

View the 2026 public holidays for St. Mary's on our Holidays page.

What are the GPS coordinates used for the weather forecast in St. Mary's?

The weather forecast for St. Mary's uses coordinates 46.9132, -53.5737.

What is the current temperature outside in St. Mary's?

The current outdoor temperature in St. Mary's is 3°C (37°F) with patchy rain nearby.

What is the hourly weather forecast for St. Mary's today?

Today's hour-by-hour weather breakdown for St. Mary's 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 St. Mary's tomorrow hour by hour?

Tomorrow's forecast for St. Mary's shows a high of 4°C and a low of 1°C. See the 3-Day Forecast section above for a full hourly breakdown.

What is the chance of rain today in St. Mary's?

There is a 90% chance of rain in St. Mary's 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 St. Mary's?

Yes, there is a 90% chance of rain in St. Mary's today — consider carrying an umbrella. Check the hourly forecast above for the most likely rain windows.