Weather in Saint-Thomas
Quebec, 28 m · continuously updated
L'Assomption (24 km) · 11 °C · ECCC 08:00
- Wind
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- Humidity
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- Rain ahead
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- Sunset
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Temperature · last 4 and next 28 hours
Saint-Thomas weather: the next 24 hours
Updated hourly.
Saint-Thomas 14-day forecast
Two-week trend.
Sun and golden hours
Sunrise –, golden light until –
Sunset –, golden light from –
–
Air quality
European index, modelled by Copernicus (CAMS).
UV index
Daily maximum — protection advised from 3.
Freezing level
Snow settles about 300 m below it.
Around Saint-Thomas
Neighbouring towns, as the crow flies.
Official weather warnings
No active warning for Saint-Thomas.
Updated 02 Nov 13:13.
Data Source: Environment and Climate Change Canada, under the Data Services End-use Licence. Warnings are shown unaltered; this site is not endorsed by Environment and Climate Change Canada.
Is there an active weather warning for Saint-Thomas?
No active warning for Saint-Thomas.
Latest measurement near Saint-Thomas
Measured at L'Assomption, 24 km away from Saint-Thomas, November 2, 08:00 EST. This Environment and Climate Change Canada weather station is at an elevation of 19 m (Quebec). These are measured values, not a forecast.
| Temperature | 11.4 °C |
|---|---|
| Wind | 14 km/h SW |
| Gusts, last hour | — |
| Precipitation, last hour | 0.0 mm |
| Humidity | 66 % |
| Pressure (sea level) | 1023 hPa |
Past 24 hours: low 2.4 °C, high 14.1 °C, 0.0 mm of precipitation.
Saint-Thomas lies at about 28 m; the station is at 19 m.
Latest measurements from the Canadian weather stations
Data Source: Environment and Climate Change Canada. Reports are published as measured, without quality control, and may contain errors or gaps. Not an official product of the Government of Canada and not endorsed by it. Data Services End-use Licence
The observed climate near Saint-Thomas
The weather station nearest to Saint-Thomas, Sorel located 15 m above sea level, is 18 km away; its records cover 1915–2019. In November, the mean temperature there is 1.9 °C over 1991–2020, 0.4 °C more than over 1961–1990 (1.5 °C), with about 77 mm of rain. The warmest month ever measured is July 2020 (24.3 °C), the coldest January 1920 (−19.0 °C). See the full series of Sorel
Today in Saint-Thomas
- Best time to air the house: between 8:00 and 10:00. The outdoor dew point drops to 4.8 °C; once warmed to 20 °C, that air holds only 37 % humidity, against 50 % in a typical home: opening the windows dries the house. How it is calculated
- Washing outside: allow about 5 h, hanging it out between 10:00 and 15:00. Air at 66 % humidity, 12.7 °C and wind at 15.6 km/h: it will dry, but not quickly. How it is calculated
- Garden: 8.6 mm of rain expected within 48 h, against a need of 1.9 mm. No need to water, the rain will do it. How it is calculated
- Terrace and barbecue between 18:00 and 23:00: dry, wind at 7 km/h, 12 °C at 8 pm. A lovely evening. How it is calculated
Calculated from Open-Meteo forecasts of 2026-11-02 08:13 (local time): model values, not measurements. All of today's advice
7-day forecast for Saint-Thomas
Today (Monday 2 Nov) in Saint-Thomas: overcast, 7 to 16 °C, precipitation 0.0 mm (19 %), wind up to 20 km/h. Tomorrow: heavy drizzle, 8 to 11 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | overcast | 7 °C | 16 °C | 0.0 mm | 20 km/h |
| Tomorrow | heavy drizzle | 8 °C | 11 °C | 7.5 mm | 13 km/h |
| Wed 4 Nov | light rain | 9 °C | 17 °C | 1.1 mm | 21 km/h |
| Thu 5 Nov | light rain | 11 °C | 15 °C | 4.1 mm | 21 km/h |
| Fri 6 Nov | overcast | 10 °C | 16 °C | 0.0 mm | 12 km/h |
| Sat 7 Nov | light rain | 10 °C | 11 °C | 16.3 mm | 20 km/h |
| Sun 8 Nov | light drizzle | 6 °C | 10 °C | 0.2 mm | 29 km/h |
Tomorrow's weather in Saint-Thomas
Tomorrow, Tuesday 3 Nov, in Saint-Thomas: heavy drizzle, from 8 to 11 °C, 7.5 mm of precipitation (probability 75 %), wind up to 13 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  overcast | 11 °C | 0.0 mm | 14 % | 3 km/h |
| 03:00 | overcast | 9 °C | 0.0 mm | 15 % | 6 km/h |
| 06:00 | overcast | 9 °C | 0.0 mm | 24 % | 3 km/h |
| 09:00 | overcast | 10 °C | 0.0 mm | 39 % | 6 km/h |
| 12:00 |  light drizzle | 11 °C | 0.4 mm | 64 % | 9 km/h |
| 15:00 | drizzle | 10 °C | 0.7 mm | 72 % | 13 km/h |
| 18:00 | heavy drizzle | 9 °C | 1.1 mm | 71 % | 13 km/h |
| 21:00 | light drizzle | 9 °C | 0.4 mm | 72 % | 10 km/h |
Frequently asked questions
Will it rain tomorrow in Saint-Thomas?
Yes: 7.5 mm expected, probability 75 %.
How warm will it be tomorrow in Saint-Thomas?
Between 8 and 11 °C.
The weekend
This weekend in Saint-Thomas: Saturday light rain, 10 to 11 °C, Sunday light drizzle, 6 to 10 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Sat 7 Nov |  light rain | 10 °C | 11 °C | 16.3 mm | 20 km/h |
| Sun 8 Nov | light drizzle | 6 °C | 10 °C | 0.2 mm | 29 km/h |
Hour by hour
The next 48 hours in Saint-Thomas, hour by hour: temperature from 8 to 16 °C, 8.6 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 08:00 | overcast | 10 °C | 0.0 mm | 10 % | 11 km/h |
| 09:00 | overcast | 11 °C | 0.0 mm | 11 % | 14 km/h |
| 10:00 | overcast | 13 °C | 0.0 mm | 14 % | 16 km/h |
| 11:00 | overcast | 14 °C | 0.0 mm | 10 % | 19 km/h |
| 12:00 | overcast | 16 °C | 0.0 mm | 10 % | 20 km/h |
| 13:00 | overcast | 16 °C | 0.0 mm | 8 % | 18 km/h |
| 14:00 | overcast | 16 °C | 0.0 mm | 5 % | 16 km/h |
| 15:00 | overcast | 16 °C | 0.0 mm | 7 % | 11 km/h |
| 16:00 | overcast | 15 °C | 0.0 mm | 8 % | 11 km/h |
| 17:00 | overcast | 14 °C | 0.0 mm | 10 % | 11 km/h |
| 18:00 | overcast | 13 °C | 0.0 mm | 13 % | 11 km/h |
| 19:00 | overcast | 13 °C | 0.0 mm | 19 % | 9 km/h |
| 20:00 | overcast | 12 °C | 0.0 mm | 19 % | 6 km/h |
| 21:00 | overcast | 12 °C | 0.0 mm | 16 % | 6 km/h |
| 22:00 | overcast | 12 °C | 0.0 mm | 16 % | 1 km/h |
| 23:00 | overcast | 12 °C | 0.0 mm | 15 % | 2 km/h |
| 00:00 | overcast | 11 °C | 0.0 mm | 14 % | 3 km/h |
| 01:00 | overcast | 10 °C | 0.0 mm | 13 % | 3 km/h |
| 02:00 | overcast | 10 °C | 0.0 mm | 20 % | 5 km/h |
| 03:00 | overcast | 9 °C | 0.0 mm | 15 % | 6 km/h |
| 04:00 | overcast | 9 °C | 0.0 mm | 21 % | 6 km/h |
| 05:00 | overcast | 9 °C | 0.0 mm | 24 % | 6 km/h |
| 06:00 | overcast | 9 °C | 0.0 mm | 24 % | 3 km/h |
| 07:00 | overcast | 8 °C | 0.0 mm | 30 % | 4 km/h |
| 08:00 | overcast | 9 °C | 0.0 mm | 37 % | 4 km/h |
| 09:00 | overcast | 10 °C | 0.0 mm | 39 % | 6 km/h |
| 10:00 | overcast | 11 °C | 0.0 mm | 54 % | 7 km/h |
| 11:00 | overcast | 11 °C | 0.0 mm | 61 % | 8 km/h |
| 12:00 | light drizzle | 11 °C | 0.4 mm | 64 % | 9 km/h |
| 13:00 | drizzle | 11 °C | 0.7 mm | 62 % | 9 km/h |
| 14:00 | drizzle | 10 °C | 0.7 mm | 74 % | 9 km/h |
| 15:00 | drizzle | 10 °C | 0.7 mm | 72 % | 13 km/h |
| 16:00 | light drizzle | 10 °C | 0.4 mm | 73 % | 11 km/h |
| 17:00 | light drizzle | 9 °C | 0.4 mm | 72 % | 13 km/h |
| 18:00 | heavy drizzle | 9 °C | 1.1 mm | 71 % | 13 km/h |
| 19:00 | light drizzle | 9 °C | 0.4 mm | 75 % | 10 km/h |
| 20:00 | heavy drizzle | 9 °C | 1.1 mm | 72 % | 9 km/h |
| 21:00 | light drizzle | 9 °C | 0.4 mm | 72 % | 10 km/h |
| 22:00 | light drizzle | 9 °C | 0.4 mm | 72 % | 10 km/h |
| 23:00 | heavy drizzle | 9 °C | 0.8 mm | 72 % | 10 km/h |
| 00:00 | light rain | 9 °C | 0.7 mm | 72 % | 6 km/h |
| 01:00 | light rain | 10 °C | 0.3 mm | 72 % | 6 km/h |
| 02:00 | overcast | 11 °C | 0.0 mm | 29 % | 7 km/h |
| 03:00 | overcast | 11 °C | 0.0 mm | 29 % | 9 km/h |
| 04:00 | overcast | 11 °C | 0.0 mm | 29 % | 10 km/h |
| 05:00 | overcast | 12 °C | 0.0 mm | 29 % | 12 km/h |
| 06:00 | overcast | 12 °C | 0.0 mm | 29 % | 14 km/h |
| 07:00 | overcast | 12 °C | 0.0 mm | 29 % | 15 km/h |
Location of Saint-Thomas
Saint-Thomas lies at 28 m, 73 m below the average of the 301 places we cover in Quebec (101 m). That makes it the 83rd lowest of the 301. The main town, Montréal, lies 59 km to the south. The nearest places we cover are Joliette (6 km to the west), Notre-Dame-des-Prairies (7 km to the north-west), Saint-Charles-Borromée (10 km to the west) and Crabtree (11 km to the south-west). With about 3,193 inhabitants according to GeoNames, Saint-Thomas is the 246th largest of the 301 places we cover in Quebec.
Today is 11.1 °C above the November normal (5.2 °C).
Climate of Saint-Thomas: 1991–2020 normals
In Saint-Thomas, July is typically the warmest month (up to 25.6 °C on average), while January is the coldest at -14.6 °C. October sees the most rain, with around 105 mm.
By season (average highs, 1991–2020 normals): winter -3.6 °C and 221 mm of rain, spring 10.4 °C and 261 mm, summer 24.5 °C and 288 mm, autumn 12.7 °C and 282 mm. The wettest season is summer (27 % of the annual total), the driest winter (21 %).
| Max T (°C) | Min T (°C) | Rainfall (mm) | Rainy days | |
|---|---|---|---|---|
| January | -5.5 | -14.6 | 75 | 10 |
| February | -3.5 | -13.0 | 60 | 9 |
| March | 2.2 | -7.1 | 73 | 10 |
| April | 10.4 | 0.5 | 96 | 12 |
| May | 18.6 | 8.3 | 92 | 12 |
| June | 23.5 | 14.0 | 98 | 12 |
| July | 25.6 | 16.8 | 97 | 12 |
| August | 24.5 | 16.0 | 93 | 12 |
| September | 20.2 | 11.9 | 92 | 10 |
| October | 12.6 | 5.4 | 105 | 11 |
| November | 5.2 | -1.3 | 86 | 11 |
| December | -1.7 | -9.3 | 85 | 11 |
Compared with Montréal, the main town 59 km to the south, highs in the warmest month are 0.9 °C higher here, and the year brings 45 mm less precipitation. In 5 months the average low falls below 0 °C (January, February, March, November and December); in 4 months the average high exceeds 20 °C (June, July, August and September).
Nearby places with normals of their own (from another station or reanalysis grid cell) compare as follows: Joliette (6 km to the west): summers 0.1 °C cooler and 28 mm drier a year; Saint-Félix-de-Valois (18 km to the north): summers 0.5 °C cooler and 31 mm wetter a year; Sorel-Tracy (18 km to the east): equally warm summers and 12 mm wetter a year. Among the 301 places we cover in Quebec whose normals come from the ERA5 reanalysis, Saint-Thomas ranks 72nd for summer warmth and 230th for annual precipitation. The warmest summers are in Le Sud-Ouest, Brossard and 2 other places and the coolest in Puvirnituq; the wettest year is in Saint-Raymond (Quebec, 142 m) and the driest in Puvirnituq.
What is the warmest month in Saint-Thomas?
The warmest month in Saint-Thomas is typically July, averaging 25.6 °C (1991–2020 normal). The coldest is January, at -14.6 °C.
How many rainy days does Saint-Thomas get per year?
Saint-Thomas sees about 133 rainy days a year, adding up to roughly 1052 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in Saint-Thomas?
Between July and January, the temperature gap in Saint-Thomas runs to about 40.2 °C, based on the 1991–2020 normals.