Weather in Chertsey
Quebec, 251 m · continuously updated
L'Assomption (46 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
Chertsey weather: the next 24 hours
Updated hourly.
Chertsey 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 Chertsey
Neighbouring towns, as the crow flies.
Official weather warnings
No active warning for Chertsey.
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 Chertsey?
No active warning for Chertsey.
Latest measurement near Chertsey
Measured at L'Assomption, 46 km away from Chertsey, 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.
Chertsey lies at about 251 m; the station is at 19 m. With 232 m of difference in elevation, the temperature in Chertsey can differ by a degree or more from the one measured at the station.
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 Chertsey
The weather station nearest to Chertsey, St Come located 244 m above sea level, is 26 km away; its records cover 1951–2017. In November, the mean temperature there is −0.7 °C over 1991–2020, 0.8 °C more than over 1961–1990 (−1.5 °C), with about 99 mm of rain. The warmest month ever measured is July 1952 (21.2 °C), the coldest January 1994 (−20.6 °C). See the full series of St Come
Today in Chertsey
- Best time to air the house: around 8:00. The outdoor dew point drops to 3.6 °C; once warmed to 20 °C, that air holds only 34 % 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 9:00 and 14:00. Air at 60 % humidity, 12.9 °C and wind at 14.2 km/h: it will dry, but not quickly. How it is calculated
- Garden: 10.1 mm of rain expected within 48 h, against a need of 2 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 5 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 Chertsey
Today (Monday 2 Nov) in Chertsey: overcast, 8 to 17 °C, precipitation 0.0 mm (13 %), wind up to 17 km/h. Tomorrow: light rain, 8 to 11 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | overcast | 8 °C | 17 °C | 0.0 mm | 17 km/h |
| Tomorrow | light rain | 8 °C | 11 °C | 8.9 mm | 8 km/h |
| Wed 4 Nov | light rain | 9 °C | 17 °C | 1.2 mm | 13 km/h |
| Thu 5 Nov | showers | 10 °C | 14 °C | 3.9 mm | 17 km/h |
| Fri 6 Nov | light drizzle | 9 °C | 14 °C | 1.9 mm | 9 km/h |
| Sat 7 Nov | showers | 8 °C | 11 °C | 12.9 mm | 15 km/h |
| Sun 8 Nov | overcast | 3 °C | 8 °C | 0.0 mm | 17 km/h |
Tomorrow's weather in Chertsey
Tomorrow, Tuesday 3 Nov, in Chertsey: light rain, from 8 to 11 °C, 8.9 mm of precipitation (probability 83 %), wind up to 8 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  overcast | 10 °C | 0.0 mm | 14 % | 2 km/h |
| 03:00 | overcast | 10 °C | 0.0 mm | 15 % | 4 km/h |
| 06:00 | overcast | 9 °C | 0.0 mm | 32 % | 4 km/h |
| 09:00 |  light drizzle | 11 °C | 0.4 mm | 51 % | 2 km/h |
| 12:00 | light drizzle | 11 °C | 0.4 mm | 67 % | 7 km/h |
| 15:00 | drizzle | 10 °C | 0.7 mm | 76 % | 7 km/h |
| 18:00 |  fog | 9 °C | 0.0 mm | 72 % | 6 km/h |
| 21:00 | light drizzle | 8 °C | 0.4 mm | 79 % | 2 km/h |
Frequently asked questions
Will it rain tomorrow in Chertsey?
Yes: 8.9 mm expected, probability 83 %.
How warm will it be tomorrow in Chertsey?
Between 8 and 11 °C.
The weekend
This weekend in Chertsey: Saturday showers, 8 to 11 °C, Sunday overcast, 3 to 8 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Sat 7 Nov |  showers | 8 °C | 11 °C | 12.9 mm | 15 km/h |
| Sun 8 Nov | overcast | 3 °C | 8 °C | 0.0 mm | 17 km/h |
Hour by hour
The next 48 hours in Chertsey, hour by hour: temperature from 8 to 17 °C, 10.1 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 08:00 | overcast | 10 °C | 0.0 mm | 5 % | 3 km/h |
| 09:00 |  mostly sunny | 13 °C | 0.0 mm | 10 % | 14 km/h |
| 10:00 | overcast | 15 °C | 0.0 mm | 8 % | 17 km/h |
| 11:00 |  partly cloudy | 16 °C | 0.0 mm | 10 % | 17 km/h |
| 12:00 | overcast | 17 °C | 0.0 mm | 8 % | 17 km/h |
| 13:00 | overcast | 17 °C | 0.0 mm | 6 % | 14 km/h |
| 14:00 | overcast | 17 °C | 0.0 mm | 4 % | 13 km/h |
| 15:00 | overcast | 17 °C | 0.0 mm | 6 % | 12 km/h |
| 16:00 | overcast | 16 °C | 0.0 mm | 7 % | 6 km/h |
| 17:00 | overcast | 14 °C | 0.0 mm | 9 % | 6 km/h |
| 18:00 | overcast | 14 °C | 0.0 mm | 10 % | 7 km/h |
| 19:00 | overcast | 13 °C | 0.0 mm | 13 % | 4 km/h |
| 20:00 | overcast | 12 °C | 0.0 mm | 11 % | 5 km/h |
| 21:00 | overcast | 12 °C | 0.0 mm | 10 % | 4 km/h |
| 22:00 | overcast | 12 °C | 0.0 mm | 11 % | 4 km/h |
| 23:00 | overcast | 11 °C | 0.0 mm | 13 % | 3 km/h |
| 00:00 | overcast | 10 °C | 0.0 mm | 14 % | 2 km/h |
| 01:00 | overcast | 9 °C | 0.0 mm | 14 % | 5 km/h |
| 02:00 | overcast | 9 °C | 0.0 mm | 14 % | 4 km/h |
| 03:00 | overcast | 10 °C | 0.0 mm | 15 % | 4 km/h |
| 04:00 | overcast | 10 °C | 0.0 mm | 23 % | 3 km/h |
| 05:00 | overcast | 10 °C | 0.0 mm | 26 % | 4 km/h |
| 06:00 | overcast | 9 °C | 0.0 mm | 32 % | 4 km/h |
| 07:00 | overcast | 9 °C | 0.0 mm | 44 % | 7 km/h |
| 08:00 | overcast | 10 °C | 0.0 mm | 46 % | 4 km/h |
| 09:00 | light drizzle | 11 °C | 0.4 mm | 51 % | 2 km/h |
| 10:00 | overcast | 11 °C | 0.0 mm | 57 % | 5 km/h |
| 11:00 | fog | 11 °C | 0.0 mm | 66 % | 5 km/h |
| 12:00 | light drizzle | 11 °C | 0.4 mm | 67 % | 7 km/h |
| 13:00 | light rain | 10 °C | 1.4 mm | 79 % | 8 km/h |
| 14:00 | drizzle | 10 °C | 0.7 mm | 83 % | 8 km/h |
| 15:00 | drizzle | 10 °C | 0.7 mm | 76 % | 7 km/h |
| 16:00 | drizzle | 9 °C | 0.7 mm | 63 % | 6 km/h |
| 17:00 | heavy drizzle | 9 °C | 1.1 mm | 73 % | 7 km/h |
| 18:00 | fog | 9 °C | 0.0 mm | 72 % | 6 km/h |
| 19:00 | heavy drizzle | 8 °C | 1.1 mm | 72 % | 7 km/h |
| 20:00 | heavy drizzle | 8 °C | 1.1 mm | 79 % | 2 km/h |
| 21:00 | light drizzle | 8 °C | 0.4 mm | 79 % | 2 km/h |
| 22:00 | light drizzle | 8 °C | 0.4 mm | 79 % | 2 km/h |
| 23:00 | drizzle | 9 °C | 0.5 mm | 79 % | 3 km/h |
| 00:00 | light rain | 9 °C | 0.9 mm | 79 % | 4 km/h |
| 01:00 | heavy drizzle | 10 °C | 0.3 mm | 79 % | 6 km/h |
| 02:00 | overcast | 12 °C | 0.0 mm | 29 % | 8 km/h |
| 03:00 | overcast | 12 °C | 0.0 mm | 29 % | 11 km/h |
| 04:00 | overcast | 13 °C | 0.0 mm | 29 % | 12 km/h |
| 05:00 | overcast | 13 °C | 0.0 mm | 29 % | 13 km/h |
| 06:00 | overcast | 13 °C | 0.0 mm | 29 % | 13 km/h |
| 07:00 | overcast | 13 °C | 0.0 mm | 29 % | 13 km/h |
Location of Chertsey
Chertsey lies at 251 m, 150 m above the average of the 301 places we cover in Quebec (101 m). That makes it the 29th highest of the 301. The main town, Montréal, lies 67 km to the south. The nearest places we cover are Rawdon (14 km to the east), Sainte-Marguerite-du-Lac-Masson (14 km to the west), Sainte-Julienne (18 km to the south-east) and Saint-Hippolyte (18 km to the south-west). With about 4,836 inhabitants according to GeoNames, Chertsey is the 199th largest of the 301 places we cover in Quebec. Of the places of interest on this site, the nearest is Mont Saint-Sauveur (ski resort, 29 km to the south-west).
Today is 13.0 °C above the November normal (4.1 °C).
Climate of Chertsey: 1991–2020 normals
In Chertsey, July is typically the warmest month (up to 24.2 °C on average), while January is the coldest at -15.1 °C. July sees the most rain, with around 109 mm.
By season (average highs, 1991–2020 normals): winter -4.4 °C and 235 mm of rain, spring 9.1 °C and 276 mm, summer 23.2 °C and 319 mm, autumn 11.6 °C and 294 mm. The wettest season is summer (28 % of the annual total), the driest winter (21 %).
| Max T (°C) | Min T (°C) | Rainfall (mm) | Rainy days | |
|---|---|---|---|---|
| January | -6.3 | -15.1 | 81 | 12 |
| February | -4.3 | -13.3 | 65 | 9 |
| March | 1.2 | -7.7 | 76 | 10 |
| April | 8.6 | -0.9 | 102 | 12 |
| May | 17.4 | 7.1 | 98 | 13 |
| June | 22.1 | 13.0 | 108 | 13 |
| July | 24.2 | 15.7 | 109 | 13 |
| August | 23.2 | 15.0 | 103 | 12 |
| September | 19.2 | 11.0 | 97 | 11 |
| October | 11.5 | 4.4 | 108 | 12 |
| November | 4.1 | -2.3 | 90 | 11 |
| December | -2.6 | -10.4 | 89 | 12 |
Compared with Montréal, the main town 67 km to the south, highs in the warmest month are 0.5 °C lower here, and the year brings 27 mm more precipitation. In 6 months the average low falls below 0 °C (January, February, March, April, November and December); in 3 months the average high exceeds 20 °C (June, July and August).
Nearby places with normals of their own (from another station or reanalysis grid cell) compare as follows: Rawdon (14 km to the east): summers 0.4 °C warmer and 50 mm drier a year; Sainte-Adèle (23 km to the south-west): summers 0.1 °C cooler and 87 mm wetter a year; Saint-Lin-Laurentides (26 km to the south): summers 1.2 °C warmer and 53 mm drier a year. Among the 301 places we cover in Quebec whose normals come from the ERA5 reanalysis, Chertsey ranks 186th for summer warmth and 98th 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 Chertsey?
The warmest month in Chertsey is typically July, averaging 24.2 °C (1991–2020 normal). The coldest is January, at -15.1 °C.
How many rainy days does Chertsey get per year?
Chertsey sees about 140 rainy days a year, adding up to roughly 1124 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in Chertsey?
Between July and January, the temperature gap in Chertsey runs to about 39.3 °C, based on the 1991–2020 normals.