Cities / Canada / Ontario

21°

☀️ St. Thomas weather

Clear sky. .

Feels like 23° Wind 8 km/h NW Humidity 86% Pressure 1013 hPa UV 7 Air Good ☀ 06:29 - 20:29

Right now it is 21° in St. Thomas with clear skies and today's high is 28° with an overnight low of 17°. The sun rises at 06:29 and sets at 20:29, giving 14h 00m of daylight. Over the coming week highs range from 25° to 29°.

St. Thomas is in Ontario, Canada, sitting 232 m above sea level, with a population of about 39,000. Local time is America/Toronto (UTC−4), and every time on this page is shown in it.

Next 24 hours - temperature

19° 24° 28° 28° 19° 09:00 · 20.3° · 0 mm 10:00 · 21.9° · 0 mm 11:00 · 24° · 0 mm 12:00 · 25.2° · 0 mm 13:00 · 26.2° · 0 mm 14:00 · 27.1° · 0 mm 15:00 · 27.6° · 0 mm 16:00 · 27.8° · 0 mm 17:00 · 27.6° · 0 mm 18:00 · 26.6° · 0 mm 19:00 · 24.1° · 0 mm 20:00 · 22.7° · 0 mm 21:00 · 21.5° · 0 mm 22:00 · 20.5° · 0 mm 23:00 · 20° · 0 mm 00:00 · 19.9° · 0 mm 01:00 · 19.3° · 0 mm 02:00 · 20.6° · 0 mm 03:00 · 20.2° · 0 mm 04:00 · 19.8° · 0 mm 05:00 · 20.1° · 0 mm 06:00 · 20.4° · 0 mm 07:00 · 19.8° · 0 mm 08:00 · 21.2° · 0 mm

Precipitation

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

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
09:00 🌤️ 20.3° 21.6° - Mostly clear
10:00 ☀️ 21.9° 22.7° - Clear sky
11:00 ☁️ 24° 24.1° - Overcast
12:00 ☁️ 25.2° 24.8° - Overcast
13:00 ☁️ 26.2° 25.4° - Overcast
14:00 ☁️ 27.1° 26.1° - Overcast
15:00 ☁️ 27.6° 26.5° - Overcast
16:00 ☁️ 27.8° 26.8° - Overcast
17:00 ☁️ 27.6° 26.6° - Overcast
18:00 ☁️ 26.6° 27.1° - Overcast
19:00 ☁️ 24.1° 25.4° - Overcast
20:00 ☁️ 22.7° 24.1° - Overcast

Next 16 days

Today☁️ 28°17° Fri 14☁️ 29°19° Sat 15🌧️ 28°15°2.8mm Sun 16🌦️ 25°18°2.9mm Mon 17☀️ 28°15° Tue 18⛅ 27°13° Wed 19🌦️ 27°18°1.5mm Thu 20🌦️ 34°19°4.5mm Fri 21⛅ 31°18° Sat 22🌧️ 26°14°9mm Sun 23☁️ 27°14° Mon 24☀️ 30°15° Tue 25☀️ 28°13° Wed 26🌤️ 28°15°0.3mm Thu 27🌦️ 20°10°0.6mm Fri 28☀️ 23°9°
☁️ TodayAugust 13th Avg 22° Low 17° at 06:00 High 28° at 16:00 Wind ~10 km/h
Cloudy
00:00 19°
02:00 19°
04:00 19°
06:00 17°
08:00 19°
10:00 22°
12:00 25°
14:00 27°
16:00 28°
18:00 27°
20:00 23°
22:00 21°
☁️ FridayAugust 14th Avg 23° Low 19° at 01:00 High 29° at 17:00 Wind ~18 km/h
Cloudy Clear Cloudy
00:00 20°
02:00 21°
04:00 20°
06:00 20°
08:00 21°
10:00 25°
12:00 27°
14:00 28°
16:00 28°
18:00 28°
20:00 24°
22:00 21°
🌧️ SaturdayAugust 15th Avg 20° Low 15° at 06:00 High 28° at 13:00 2.8 mm rain Feels 25° Wind ~20 km/h
Cloudy Rain
00:00 18°
02:00 17°
04:00 15°
06:00 15°
08:00 18°
10:00 24°
12:00 28°
14:00 26°
16:00 24°
18:00 19° 0.4mm
20:00 18° 1.1mm
22:00 18°
🌦️ SundayAugust 16th Avg 21° Low 18° at 00:00 High 25° at 18:00 2.9 mm rain Feels 27° Wind ~30 km/h
Rain Cloudy Cloudy
00:00 18° 0.3mm
02:00 19°
04:00 19° 0.8mm
06:00 21°
08:00 23° 0.3mm
10:00 22°
12:00 22°
14:00 24°
16:00 24°
18:00 25°
20:00 22° 0.2mm
22:00 19°
☀️ MondayAugust 17th Avg 20° Low 15° at 06:00 High 28° at 16:00 Feels 25° Wind ~22 km/h
Clear Partly Cloudy Clear
00:00 17°
02:00 16°
04:00 15°
06:00 15°
08:00 18°
10:00 23°
12:00 25°
14:00 27°
16:00 28°
18:00 26°
20:00 21°
22:00 16°
⛅ TuesdayAugust 18th Avg 20° Low 13° at 04:00 High 27° at 15:00 Feels 23° Wind ~29 km/h
Clear Partly Cloudy Cloudy Cloudy
00:00 15°
02:00 14°
04:00 13°
06:00 14°
08:00 17°
10:00 22°
12:00 26°
14:00 27°
16:00 27°
18:00 25°
20:00 22°
22:00 22°
🌦️ WednesdayAugust 19th Avg 22° Low 18° at 04:00 High 27° at 16:00 1.5 mm rain Wind ~16 km/h
Rain Partly Cloudy Cloudy Rain Cloudy Rain
00:00 21° 0.1mm
02:00 18° 0.1mm
04:00 18° 0.2mm
06:00 18°
08:00 19°
10:00 24°
12:00 26°
14:00 26°
16:00 27° 0.1mm
18:00 25°
20:00 22°
22:00 21° 0.1mm
🌦️ ThursdayAugust 20th Avg 25° Low 19° at 05:00 High 34° at 17:00 4.5 mm rain Feels 32° Wind ~21 km/h
Rain Clear Rain Partly Cloudy Rain
00:00 20° 0.5mm
02:00 20° 0.5mm
04:00 19°
06:00 19° 0.1mm
08:00 21° 0.1mm
10:00 25° 0.1mm
12:00 28° 0.6mm
14:00 29° 0.6mm
16:00 33°
18:00 33°
20:00 27°
22:00 23° 0.2mm
⛅ FridayAugust 21st Avg 23° Low 18° at 06:00 High 31° at 14:00 Wind ~23 km/h
Cloudy Partly Cloudy Clear Cloudy
00:00 21°
02:00 20°
04:00 18°
06:00 18°
08:00 18°
10:00 23°
12:00 28°
14:00 31°
16:00 29°
18:00 26°
20:00 22°
22:00 20°
🌧️ SaturdayAugust 22nd Avg 19° Low 14° at 07:00 High 26° at 16:00 9 mm rain Feels 23° Wind ~21 km/h
Rain Cloudy Clear
00:00 18° 0.2mm
02:00 16° 0.2mm
04:00 15° 1.6mm
06:00 15° 1.2mm
08:00 14° 1.2mm
10:00 17°
12:00 21°
14:00 25°
16:00 26°
18:00 24°
20:00 19°
22:00 16°
☁️ SundayAugust 23rd Avg 19° Low 14° at 03:00 High 27° at 15:00 Feels 25° Wind ~15 km/h
Clear Cloudy Partly Cloudy Cloudy
00:00 15°
02:00 14°
04:00 14°
06:00 14°
08:00 16°
10:00 21°
12:00 24°
14:00 26°
16:00 27°
18:00 24°
20:00 20°
22:00 18°
☀️ MondayAugust 24th Avg 21° Low 15° at 03:00 High 30° at 14:00 Feels 26° Wind ~21 km/h
Clear Partly Cloudy
00:00 16°
02:00 15°
04:00 15°
06:00 15°
08:00 17°
10:00 23°
12:00 28°
14:00 30°
16:00 28°
18:00 25°
20:00 21°
22:00 17°
☀️ TuesdayAugust 25th Avg 19° Low 13° at 04:00 High 28° at 14:00 Feels 25° Wind ~17 km/h
Clear
00:00 15°
02:00 14°
04:00 13°
06:00 13°
08:00 15°
10:00 21°
12:00 26°
14:00 28°
16:00 27°
18:00 24°
20:00 19°
22:00 18°
🌤️ WednesdayAugust 26th Avg 20° Low 15° at 23:00 High 28° at 11:00 0.3 mm rain Feels 25° Wind ~38 km/h
Clear Rain Clear Partly Cloudy Clear
00:00 17°
02:00 18°
04:00 18°
06:00 19° 0.1mm
08:00 21° 0.1mm
10:00 26°
12:00 28°
14:00 25°
16:00 22°
18:00 19°
20:00 17°
22:00 15°
🌦️ ThursdayAugust 27th Avg 15° Low 10° at 23:00 High 20° at 17:00 0.6 mm rain Feels 17° Wind ~25 km/h
Clear Cloudy Partly Cloudy Rain Clear
00:00 14°
02:00 13°
04:00 12°
06:00 12°
08:00 15°
10:00 19°
12:00 19° 0.2mm
14:00 15° 0.2mm
16:00 19°
18:00 19°
20:00 15°
22:00 12°
☀️ FridayAugust 28th Avg 15° Low 9° at 04:00 High 23° at 16:00 Feels 21° Wind ~16 km/h
Clear Clear
00:00 10°
02:00 9°
04:00 9°
06:00 9°
08:00 11°
10:00 16°
12:00 20°
14:00 22°
16:00 23°
18:00 21°
20:00 15°
22:00 12°

Sun

☀️ Sunrise 06:29 · Sunset 20:29

14h 00m of daylight · America/Toronto

Air quality

PM2.5 3.4 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Lyndale · 2.3 km Lynhurst · 2.6 km Yarmouth Centre · 4.9 km Whites · 6 km Talbotville Royal · 6.8 km Middlemarch · 7.2 km

Tools for St. Thomas

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

Common questions about St. Thomas weather

Will it rain in St. Thomas today?

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

What is the temperature in St. Thomas right now?

It is 21° in St. Thomas right now, though it feels closer to 23°. Today runs between a low of 17° and a high of 28°.

What time is sunrise and sunset in St. Thomas?

The sun rises at 06:29 and sets at 20:29 local time in St. Thomas today, giving 14h 00m of daylight.

What is the air quality in St. Thomas?

PM2.5 in St. Thomas is currently 3.4 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. Thomas 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. Thomas 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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