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Now · 2:11 PM

St. Mary's Weather & Hourly Forecast

Canada · Nova Scotia

Overcast
17°C
Overcast
Feels like: 14°C
💧 Humidity 59% 🌡 Pressure 1022 hPa 💨 Wind 11 km/h 👁 Visibility 54.4 km Clouds 100% ☀️ UV index 4.8 · Moderate 🌅 Sunrise 🌇 Sunset

Hourly Weather Forecast for St. Mary's

Today
Overcast · 3:00 PM Overcast
17° 💧 0.1 mm 💨 11 km/h H 59%1022 hPa
Overcast · 6:00 PM Overcast
16° 💧 None 💨 5 km/h H 58%1021 hPa
Clear night · 9:00 PM Clear night
13° 💧 None 💨 10 km/h H 83%1021 hPa
Tomorrow
Mostly cloudy night · 12:00 AM Mostly cloudy night
12° 💧 None 💨 12 km/h H 86%1020 hPa
Overcast night · 3:00 AM Overcast night
14° 💧 None 💨 16 km/h H 78%1018 hPa
Overcast night · 6:00 AM Overcast night
14° 💧 None 💨 20 km/h H 81%1015 hPa
Light rain · 9:00 AM Light rain
16° 💧 2.8 mm 💨 24 km/h H 87%1012 hPa
Light rain · 12:00 PM Light rain
17° 💧 3.6 mm 💨 33 km/h H 97%1007 hPa
Light rain · 3:00 PM Light rain
18° 💧 0.3 mm 💨 28 km/h H 98%1004 hPa
Overcast · 6:00 PM Overcast
18° 💧 0.0 mm 💨 21 km/h H 96%1002 hPa
Mostly cloudy night · 9:00 PM Mostly cloudy night
18° 💧 None 💨 16 km/h H 98%1001 hPa
Friday
Mostly clear night · 12:00 AM Mostly clear night
17° 💧 None 💨 15 km/h H 97%1001 hPa
Partly cloudy night · 3:00 AM Partly cloudy night
15° 💧 None 💨 14 km/h H 89%1002 hPa
Clear night · 6:00 AM Clear night
13° 💧 None 💨 13 km/h H 88%1004 hPa
Sunny · 9:00 AM Sunny
16° 💧 None 💨 15 km/h H 71%1005 hPa
Sunny · 12:00 PM Sunny
19° 💧 0.0 mm 💨 20 km/h H 47%1005 hPa

In St. Mary's and, more broadly, across the province of Nova Scotia: Across the region this afternoon, mainly cloudy skies are expected to persist, with temperatures ranging from about 13 to 16 degrees Celsius. In many areas, there remains a possibility of rain or showers later in the day, with some locations experiencing a maximum likelihood of around 68%. Winds are anticipated to be chiefly from the north at around 11 km/h, with gusts reaching up to 25 km/h in spots. As evening approaches, conditions are likely to remain unsettled, and the chance of passing showers will continue in parts of the region. Overall, it will be a cool and rather cloudy afternoon and evening, with some areas experiencing light rain or showers.

15-Day Weather Forecast for St. Mary's

TomorrowTomorrow Overcast Overcast 19°/12° 💧 None 💨 33 km/h
Friday, Sep 11Fri Sep 11 Mostly cloudy Mostly cloudy 20°/13° 💧 None 💨 20 km/h
Saturday, Sep 12Sat Sep 12 Mostly sunny Mostly sunny 18°/12° 💧 11 mm 💨 20 km/h
Sunday, Sep 13Sun Sep 13 Mostly sunny Mostly sunny 18°/15° 💧 None 💨 29 km/h
Monday, Sep 14Mon Sep 14 Heavy rain Heavy rain 21°/17° 💧 8.5 mm 💨 27 km/h
Tuesday, Sep 15Tue Sep 15 Partly cloudy Partly cloudy 16°/12° 💧 None 💨 13 km/h
Wednesday, Sep 16Wed Sep 16 Moderate rain Moderate rain 18°/16° 💧 1.2 mm 💨 31 km/h
Thursday, Sep 17Thu Sep 17 Partly cloudy Partly cloudy 20°/12° 💧 1.7 mm 💨 17 km/h
Friday, Sep 18Fri Sep 18 Mostly cloudy Mostly cloudy 17°/12° 💧 None 💨 16 km/h
Saturday, Sep 19Sat Sep 19 Light rain Light rain 16°/16° 💧 3.4 mm 💨 29 km/h
Sunday, Sep 20Sun Sep 20 Mostly sunny Mostly sunny 17°/13° 💧 0.3 mm 💨 29 km/h
Monday, Sep 21Mon Sep 21 Partly cloudy Partly cloudy 15°/10° 💧 0.0 mm 💨 32 km/h
Tuesday, Sep 22Tue Sep 22 Overcast Overcast 16°/14° 💧 0.1 mm 💨 17 km/h
Wednesday, Sep 23Wed Sep 23 Mostly sunny Mostly sunny 16°/13° 💧 0.0 mm 💨 14 km/h
Thursday, Sep 24Thu Sep 24 Overcast Overcast 19°/15° 💧 None 💨 6 km/h

TEMPERATURE OUTLOOK

Hourly Temperature and Weather Conditions in St. Mary's

Vertical axis: °C · Color based on temperature
Overcast at 3:00 PM
62° Today 3:00 PM
Partly cloudy at 4:00 PM
62° 4:00 PM
Overcast at 5:00 PM
62° 5:00 PM
Overcast at 6:00 PM
61° 6:00 PM
Overcast at 7:00 PM
59° Today 7:00 PM
Overcast night at 8:00 PM
57° 8:00 PM
Clear night at 9:00 PM
56° 9:00 PM
Clear night at 10:00 PM
55° 10:00 PM
Overcast night at 11:00 PM
54° Today 11:00 PM
Mostly cloudy night at 12:00 AM
54° 12:00 AM
Mostly cloudy night at 1:00 AM
55° 1:00 AM
Mostly cloudy night at 2:00 AM
56° 2:00 AM
Overcast night at 3:00 AM
56° Tomorrow 3:00 AM
Mostly cloudy night at 4:00 AM
57° 4:00 AM
Overcast night at 5:00 AM
57° 5:00 AM
Overcast night at 6:00 AM
58° 6:00 AM
Overcast at 7:00 AM
59° Tomorrow 7:00 AM
Overcast at 8:00 AM
60° 8:00 AM
Light rain at 9:00 AM
60° 9:00 AM
Light rain at 10:00 AM
60° 10:00 AM
Light rain at 11:00 AM
61° Tomorrow 11:00 AM
Light rain at 12:00 PM
62° 12:00 PM
Light rain at 1:00 PM
63° 1:00 PM
Light rain at 2:00 PM
64° 2:00 PM
Light rain at 3:00 PM
64° Tomorrow 3:00 PM
Overcast at 4:00 PM
65° 4:00 PM
Overcast at 5:00 PM
65° 5:00 PM
Overcast at 6:00 PM
65° 6:00 PM
Overcast at 7:00 PM
65° Tomorrow 7:00 PM
Partly cloudy night at 8:00 PM
65° 8:00 PM
Mostly cloudy night at 9:00 PM
64° 9:00 PM
Mostly clear night at 10:00 PM
63° 10:00 PM
Mostly clear night at 11:00 PM
63° Tomorrow 11:00 PM
Mostly clear night at 12:00 AM
63° 12:00 AM
Mostly clear night at 1:00 AM
62° 1:00 AM
Partly cloudy night at 2:00 AM
61° 2:00 AM
Partly cloudy night at 3:00 AM
59° Friday 3:00 AM
Mostly cloudy night at 4:00 AM
58° 4:00 AM
Mostly clear night at 5:00 AM
57° 5:00 AM
Clear night at 6:00 AM
55° 6:00 AM
Sunny at 7:00 AM
55° Friday 7:00 AM
Sunny at 8:00 AM
57° 8:00 AM
Sunny at 9:00 AM
60° 9:00 AM
Sunny at 10:00 AM
62° 10:00 AM
Sunny at 11:00 AM
64° Friday 11:00 AM
Sunny at 12:00 PM
66° 12:00 PM
Mostly sunny at 1:00 PM
67° 1:00 PM
Sunny at 2:00 PM
67° 2:00 PM
Sunny at 3:00 PM
67° Friday 3:00 PM
Sunny at 4:00 PM
67° 4:00 PM
Mostly sunny at 5:00 PM
66° 5:00 PM
Mostly sunny at 6:00 PM
65° 6:00 PM
Sunny at 7:00 PM
61° Friday 7:00 PM
Clear night at 8:00 PM
58° 8:00 PM
Clear night at 9:00 PM
56° 9:00 PM
Clear night at 6:00 AM
53° 6:00 AM
Sunny at 9:00 AM
56° Saturday 9:00 AM
Mostly sunny at 12:00 PM
64° 12:00 PM
Mostly sunny at 3:00 PM
63° 3:00 PM
Sunny at 6:00 PM
61° 6:00 PM
Mostly clear night at 9:00 PM
59° Saturday 9:00 PM
Mostly clear night at 12:00 AM
59° 12:00 AM
Partly cloudy night at 3:00 AM
59° 3:00 AM
Clear night at 6:00 AM
60° 6:00 AM
Partly cloudy at 9:00 AM
62° Sunday 9:00 AM
Partly cloudy at 12:00 PM
63° 12:00 PM
Overcast at 3:00 PM
64° 3:00 PM
Mostly cloudy at 6:00 PM
63° 6:00 PM
Overcast night at 9:00 PM
63° Sunday 9:00 PM
Overcast night at 12:00 AM
63° 12:00 AM
Heavy rain at 3:00 AM
62° 3:00 AM
Light rain at 6:00 AM
63° 6:00 AM
Mostly cloudy at 9:00 AM
64° Monday 9:00 AM
Partly cloudy at 12:00 PM
67° 12:00 PM
Light rain at 3:00 PM
70° 3:00 PM
Sunny at 6:00 PM
67° 6:00 PM
Clear night at 9:00 PM
60° Monday 9:00 PM
Clear night at 12:00 AM
55° 12:00 AM
Clear night at 3:00 AM
55° 3:00 AM
Partly cloudy at 9:00 AM
54° 9:00 AM
Overcast at 3:00 PM
59° Tuesday 3:00 PM
Clear night at 9:00 PM
63° 9:00 PM
Clear night at 3:00 AM
61° 3:00 AM
Partly cloudy at 9:00 AM
62° 9:00 AM
Moderate rain at 3:00 PM
64° Wednesday 3:00 PM
Partly cloudy night at 9:00 PM
68° 9:00 PM
Partly cloudy night at 3:00 AM
57° 3:00 AM
Mostly sunny at 9:00 AM
53° 9:00 AM
Overcast at 3:00 PM
57° Thursday 3:00 PM
Clear night at 9:00 PM
63° 9:00 PM
Mostly cloudy night at 3:00 AM
55° 3:00 AM
Overcast at 9:00 AM
53° 9:00 AM
Overcast at 3:00 PM
58° Friday 3:00 PM
Overcast night at 9:00 PM
60° 9:00 PM
Overcast night at 3:00 AM
60° 3:00 AM
Mostly cloudy at 9:00 AM
61° 9:00 AM
Light rain at 3:00 PM
61° Saturday 3:00 PM
Mostly clear night at 9:00 PM
63° 9:00 PM
Clear night at 3:00 AM
56° 3:00 AM
Mostly cloudy at 9:00 AM
56° 9:00 AM
Partly cloudy at 3:00 PM
56° Sunday 3:00 PM
Partly cloudy night at 9:00 PM
59° 9:00 PM
Partly cloudy night at 3:00 AM
55° 3:00 AM
Mostly sunny at 9:00 AM
51° 9:00 AM
Mostly sunny at 3:00 PM
55° Monday 3:00 PM
Overcast night at 9:00 PM
59° 9:00 PM
Mostly cloudy night at 3:00 AM
58° 3:00 AM
Overcast at 9:00 AM
60° 9:00 AM
Overcast at 3:00 PM
61° Tuesday 3:00 PM
Overcast night at 9:00 PM
62° 9:00 PM
Overcast night at 3:00 AM
59° 3:00 AM
Mostly sunny at 9:00 AM
55° 9:00 AM
Mostly sunny at 3:00 PM
57° Wednesday 3:00 PM
Overcast night at 9:00 PM
66° 9:00 PM
Clear night at 3:00 AM
58° 3:00 AM

AIR QUALITY FORECAST

Air Quality in St. Mary's

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 3:00 PM
PM2.5 Fine particles Good 0,5µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 0,7µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 70,6µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,3µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

Sun exposure and health risks in St. Mary's

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.
0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme
Today UV 5,1Moderate 🙂Fair
Tomorrow UV 0,7Low 😐Moderate
Friday UV 5,2Moderate 🙂Fair
Saturday UV 5,3Moderate 🙂Fair
Sunday UV 5,0Moderate 😐Moderate
Monday UV 5,0Moderate Unavailable
Tuesday UV 5,0Moderate Unavailable
Hourly UV index today
3:00 PMUV 3,8 4:00 PMUV 2,3 5:00 PMUV 1,2 6:00 PMUV 0,4 7:00 PMUV 0,0
Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Speed in St. Mary's

Vertical axis: km/h · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in km/h. Today 3:00 PM 4:00 PM 5:00 PM 6:00 PM Today 7:00 PM 8:00 PM 9:00 PM 10:00 PM Today 11:00 PM 12:00 AM 1:00 AM 2:00 AM Tomorrow 3:00 AM 4:00 AM 5:00 AM 6:00 AM Tomorrow 7:00 AM 8:00 AM 9:00 AM 10:00 AM Tomorrow 11:00 AM 12:00 PM 1:00 PM 2:00 PM Tomorrow 3:00 PM 4:00 PM 5:00 PM 6:00 PM Tomorrow 7:00 PM 8:00 PM 9:00 PM 10:00 PM Tomorrow 11:00 PM 12:00 AM 1:00 AM 2:00 AM Friday 3:00 AM 4:00 AM 5:00 AM 6:00 AM Friday 7:00 AM 8:00 AM 9:00 AM 10:00 AM Friday 11:00 AM 12:00 PM 1:00 PM 2:00 PM Friday 3:00 PM 4:00 PM 5:00 PM 6:00 PM Friday 7:00 PM 8:00 PM 9:00 PM 6:00 AM Saturday 9:00 AM 12:00 PM 3:00 PM 6:00 PM Saturday 9:00 PM 12:00 AM 3:00 AM 6:00 AM Sunday 9:00 AM 12:00 PM 3:00 PM 6:00 PM Sunday 9:00 PM 12:00 AM 3:00 AM 6:00 AM Monday 9:00 AM 12:00 PM 3:00 PM 6:00 PM Monday 9:00 PM 12:00 AM 3:00 AM 9:00 AM Tuesday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Wednesday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Thursday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Friday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Saturday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Sunday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Monday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Tuesday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Wednesday 3:00 PM 9:00 PM 3:00 AM
Sustained wind Max gusts
NIGHT SKY · ST. MARY'S, NOVA SCOTIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 9:00 PM–10:00 PM.

99/100Best-hour score
BEST TIME TONIGHT 9:00 PM–10:00 PM Astronomical darkness: 9:13 PM–4:58 AM
Cloud cover 2% Real hourly forecast for the best viewing hour.
Moonlight 4% Waning Crescent · Moon below the horizon at the best viewing hour.
Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 10° high at the best hour.
Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min26%
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
SEP 5–SEP 21
September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak
ACTIVE NOW
SEP 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
UPCOMING
OCT 2–NOV 7
OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak
UPCOMING
OCT 20–DEC 10
Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak
UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

Forecast data for St. Mary's were last refreshed today at 2:11 PM. The current forecast period extends through 11/09/2026 at 12:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.