Cities / Canada / Ontario

26°

⛅ St. Marys weather

Partly cloudy. .

Feels like 29° Wind 14 km/h SW Humidity 72% Pressure 1014 hPa UV 2 Air Good ☀ 06:51 - 19:56

Right now it is 26° in St. Marys with partly cloudy skies, it feels more like 29° and today's high is 27° with an overnight low of 18°. The sun rises at 06:51 and sets at 19:56, giving 13h 05m of daylight. Over the coming week highs range from 23° to 25° - a steady stretch with little day-to-day change.

St. Marys is in Ontario, Canada, sitting 325 m above sea level, with a population of about 7,000. Local time is America/Toronto (UTC−4), and every time on this page is shown in it.

Next 24 hours - temperature

17° 23° 28° 27° 18° 13:00 · 26° · 0 mm 14:00 · 26.8° · 0 mm 15:00 · 27.1° · 0 mm 16:00 · 27.1° · 0 mm 17:00 · 26.7° · 0 mm 18:00 · 25.9° · 0 mm 19:00 · 24.4° · 0 mm 20:00 · 23.8° · 0 mm 21:00 · 22.7° · 0 mm 22:00 · 21.8° · 0 mm 23:00 · 21.3° · 0 mm 00:00 · 20.8° · 0 mm 01:00 · 20.3° · 0 mm 02:00 · 19.7° · 0 mm 03:00 · 19.3° · 0 mm 04:00 · 19° · 0 mm 05:00 · 18.7° · 0 mm 06:00 · 17.9° · 0 mm 07:00 · 17.8° · 0 mm 08:00 · 18.8° · 0 mm 09:00 · 19.8° · 0 mm 10:00 · 20.9° · 0 mm 11:00 · 20.5° · 0 mm 12:00 · 22.2° · 0 mm

Precipitation

13:00 · 0 mm 13:00 14:00 · 0 mm 15:00 · 0 mm 16:00 · 0 mm 16:00 17:00 · 0 mm 18:00 · 0 mm 19:00 · 0 mm 19:00 20:00 · 0 mm 21:00 · 0 mm 22:00 · 0 mm 22:00 23:00 · 0 mm 00:00 · 0 mm 01:00 · 0 mm 01:00 02:00 · 0 mm 03:00 · 0 mm 04:00 · 0 mm 04:00 05:00 · 0 mm 06:00 · 0 mm 07:00 · 0 mm 07:00 08:00 · 0 mm 09:00 · 0 mm 10:00 · 0 mm 10:00 11:00 · 0 mm 12:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
13:00 🌤️ 26° 27.6° - Mostly clear
14:00 ☁️ 26.8° 27.8° - Overcast
15:00 ☁️ 27.1° 28° - Overcast
16:00 ☁️ 27.1° 28° - Overcast
17:00 ☁️ 26.7° 27.5° - Overcast
18:00 ☁️ 25.9° 26.9° - Overcast
19:00 ☁️ 24.4° 26.3° - Overcast
20:00 ☁️ 23.8° 27° - Overcast
21:00 ⛅ 22.7° 25.1° - Partly cloudy
22:00 ☁️ 21.8° 25.1° - Overcast
23:00 ☁️ 21.3° 23.8° - Overcast
00:00 ⛅ 20.8° 23.2° - Partly cloudy

Next 16 days

Today☁️ 27°18° Fri 4🌧️ 24°18°1.8mm Sat 5☀️ 24°14° Sun 6☀️ 23°12° Mon 7☀️ 25°12° Tue 8☁️ 23°14° Wed 9🌦️ 24°16°6.3mm Thu 10⛅ 21°14° Fri 11🌤️ 21°10° Sat 12☀️ 23°10° Sun 13☁️ 25°13°0.3mm Mon 14🌧️ 24°19°16.8mm Tue 15🌧️ 21°13°36.9mm Wed 16🌦️ 13°9°1.8mm Thu 17☀️ 15°7° Fri 18⛅ 17°6°
☁️ TodaySeptember 3rd Avg 22° Low 18° at 05:00 High 27° at 15:00 Wind ~17 km/h
Cloudy Clear Cloudy
00:00 20°
02:00 19°
04:00 19°
06:00 19°
08:00 19°
10:00 22°
12:00 25°
14:00 27°
16:00 27°
18:00 26°
20:00 24°
22:00 22°
🌧️ FridaySeptember 4th Avg 21° Low 18° at 07:00 High 24° at 15:00 1.8 mm rain Feels 26° Wind ~14 km/h
Clear Cloudy Cloudy Clear
00:00 21°
02:00 20°
04:00 19°
06:00 18°
08:00 19°
10:00 21°
12:00 22°
14:00 23°
16:00 22°
18:00 23°
20:00 21°
22:00 19°
☀️ SaturdaySeptember 5th Avg 19° Low 14° at 07:00 High 24° at 16:00 Wind ~17 km/h
Clear
00:00 17°
02:00 16°
04:00 16°
06:00 15°
08:00 15°
10:00 20°
12:00 22°
14:00 24°
16:00 24°
18:00 24°
20:00 20°
22:00 16°
☀️ SundaySeptember 6th Avg 17° Low 12° at 07:00 High 23° at 16:00 Feels 20° Wind ~19 km/h
Clear Clear Clear
00:00 14°
02:00 14°
04:00 13°
06:00 13°
08:00 14°
10:00 18°
12:00 21°
14:00 22°
16:00 23°
18:00 22°
20:00 16°
22:00 13°
☀️ MondaySeptember 7th Avg 17° Low 12° at 05:00 High 25° at 16:00 Feels 23° Wind ~12 km/h
Clear Cloudy Clear Clear
00:00 13°
02:00 12°
04:00 12°
06:00 12°
08:00 14°
10:00 19°
12:00 22°
14:00 24°
16:00 25°
18:00 24°
20:00 17°
22:00 15°
☁️ TuesdaySeptember 8th Avg 18° Low 14° at 07:00 High 23° at 14:00 Feels 20° Wind ~15 km/h
Cloudy
00:00 15°
02:00 15°
04:00 15°
06:00 14°
08:00 15°
10:00 19°
12:00 22°
14:00 23°
16:00 21°
18:00 19°
20:00 18°
22:00 18°
🌦️ WednesdaySeptember 9th Avg 20° Low 16° at 02:00 High 24° at 15:00 6.3 mm rain Wind ~30 km/h
Rain Cloudy Rain
00:00 17° 0.2mm
02:00 16° 0.2mm
04:00 16°
06:00 17°
08:00 17°
10:00 19° 0.9mm
12:00 21° 0.4mm
14:00 24° 0.4mm
16:00 24° 0.1mm
18:00 23° 0.4mm
20:00 22° 0.4mm
22:00 22° 0.1mm
⛅ ThursdaySeptember 10th Avg 18° Low 14° at 23:00 High 21° at 00:00 Wind ~32 km/h
Clear Partly Cloudy Clear Partly Cloudy
00:00 21°
02:00 19°
04:00 19°
06:00 19°
08:00 18°
10:00 19°
12:00 20°
14:00 21°
16:00 20°
18:00 18°
20:00 15°
22:00 14°
🌤️ FridaySeptember 11th Avg 15° Low 10° at 06:00 High 21° at 16:00 Feels 18° Wind ~20 km/h
Cloudy Clear
00:00 14°
02:00 13°
04:00 11°
06:00 10°
08:00 11°
10:00 15°
12:00 19°
14:00 20°
16:00 21°
18:00 19°
20:00 14°
22:00 12°
☀️ SaturdaySeptember 12th Avg 15° Low 10° at 04:00 High 23° at 15:00 Feels 20° Wind ~14 km/h
Clear
00:00 11°
02:00 10°
04:00 10°
06:00 10°
08:00 11°
10:00 17°
12:00 21°
14:00 23°
16:00 23°
18:00 20°
20:00 15°
22:00 14°
☁️ SundaySeptember 13th Avg 18° Low 13° at 04:00 High 25° at 17:00 0.3 mm rain Feels 21° Wind ~31 km/h
Clear Partly Cloudy Cloudy Rain
00:00 13°
02:00 13°
04:00 13°
06:00 14°
08:00 16°
10:00 18°
12:00 20°
14:00 22°
16:00 25°
18:00 24° 0.1mm
20:00 21° 0.1mm
22:00 20°
🌧️ MondaySeptember 14th Avg 21° Low 19° at 00:00 High 24° at 17:00 16.8 mm rain Feels 26° Wind ~25 km/h
Partly Cloudy Rain
00:00 19°
02:00 20°
04:00 19° 0.3mm
06:00 19° 3.8mm
08:00 20° 3.8mm
10:00 20° 0.2mm
12:00 21° 0.3mm
14:00 23° 0.3mm
16:00 24° 0.2mm
18:00 23° 0.2mm
20:00 22° 0.2mm
22:00 21° 0.6mm
🌧️ TuesdaySeptember 15th Avg 19° Low 13° at 23:00 High 21° at 16:00 36.9 mm rain Wind ~35 km/h
Rain Clear Rain
00:00 20° 2.3mm
02:00 21° 2.3mm
04:00 20° 7.1mm
06:00 18° 1.2mm
08:00 18° 1.2mm
10:00 18° 1.5mm
12:00 19°
14:00 20°
16:00 21°
18:00 20° 0.1mm
20:00 16° 0.1mm
22:00 14° 0.1mm
🌦️ WednesdaySeptember 16th Avg 11° Low 9° at 21:00 High 13° at 00:00 1.8 mm rain Feels 8° Wind ~30 km/h
Rain Cloudy Partly Cloudy Clear
00:00 13° 0.1mm
02:00 13° 0.1mm
04:00 12° 0.1mm
06:00 12° 0.1mm
08:00 12° 0.1mm
10:00 12° 0.2mm
12:00 11° 0.1mm
14:00 11° 0.1mm
16:00 12°
18:00 11°
20:00 9°
22:00 9°
☀️ ThursdaySeptember 17th Avg 10° Low 7° at 23:00 High 15° at 14:00 Feels 8° Wind ~28 km/h
Cloudy Partly Cloudy Clear
00:00 10°
02:00 10°
04:00 9°
06:00 9°
08:00 8°
10:00 11°
12:00 14°
14:00 15°
16:00 14°
18:00 11°
20:00 8°
22:00 7°
⛅ FridaySeptember 18th Avg 11° Low 6° at 03:00 High 17° at 16:00 Feels 14° Wind ~11 km/h
Clear Partly Cloudy Clear Partly Cloudy Cloudy
00:00 6°
02:00 6°
04:00 6°
06:00 6°
08:00 8°
10:00 12°
12:00 15°
14:00 17°
16:00 17°
18:00 15°
20:00 11°
22:00 10°

Sun

☀️ Sunrise 06:51 · Sunset 19:56

13h 05m of daylight · America/Toronto

Air quality

PM2.5 3.9 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Lind · 1.4 km Rannoch · 4.7 km Uniondale · 6.3 km Wellburn · 6.5 km Science Hill · 7.3 km Belton · 8.3 km

Tools for St. Marys

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about St. Marys weather

Will it rain in St. Marys today?

No rain is in the forecast for St. Marys today.

What is the temperature in St. Marys right now?

It is 26° in St. Marys right now, though it feels closer to 29°. Today runs between a low of 18° and a high of 27°.

What time is sunrise and sunset in St. Marys?

The sun rises at 06:51 and sets at 19:56 local time in St. Marys today, giving 13h 05m of daylight.

What is the air quality in St. Marys?

PM2.5 in St. Marys is currently 3.9 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the St. Marys forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers St. Marys best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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