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Weather in Constance Bay
Ontario, 61 m · continuously updated
Ottawa Cda Rcs (32 km) · 10 °C · ECCC 08:00
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Temperature · last 4 and next 28 hours
Constance Bay weather: the next 24 hours
Updated hourly.
Constance Bay 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 Constance Bay
Neighbouring towns, as the crow flies.
Official weather warnings
No active warning for Constance Bay.
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 Constance Bay?
No active warning for Constance Bay.
Latest measurement near Constance Bay
Measured at Ottawa Cda Rcs, 32 km away from Constance Bay, November 2, 08:00 EST. This Environment and Climate Change Canada weather station is at an elevation of 79 m (Ontario). These are measured values, not a forecast.
| Temperature | 10.3 °C |
|---|---|
| Wind | 8 km/h SW |
| Gusts, last hour | — |
| Precipitation, last hour | 0.0 mm |
| Humidity | 66 % |
| Pressure (sea level) | 1024 hPa |
Past 24 hours: low 0.8 °C, high 17.0 °C, 0.0 mm of precipitation.
Constance Bay lies at about 61 m; the station is at 79 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 Constance Bay
The weather station nearest to Constance Bay, Chelsea located 113 m above sea level, is 24 km away; its records cover 1928–2019. In November, the mean temperature there is 1.2 °C over 1991–2020, practically as over 1961–1990 (1.2 °C), with about 80 mm of rain. The warmest month ever measured is July 2020 (24.2 °C), the coldest February 1934 (−20.7 °C). See the full series of Chelsea
Today in Constance Bay
- Best time to air the house: between 8:00 and 10:00. The outdoor dew point drops to 1.7 °C; once warmed to 20 °C, that air holds only 30 % humidity, against 50 % in a typical home: opening the windows dries the house. How it is calculated
- Washing outside: allow about 6 h, hanging it out between 10:00 and 16:00. Air at 52 % humidity, 12.8 °C and wind at 2.9 km/h: it will dry, but not quickly. How it is calculated
- UV index of 3 around 12:00: stay in the shade around 12:00. Fair skin burns in about 67 minutes without protection; wear sunscreen and a hat if you are outdoors. How it is calculated
- Garden: 14 mm of rain expected within 48 h, against a need of 2.2 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 7 km/h, 14 °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 Constance Bay
Today (Monday 2 Nov) in Constance Bay: overcast, 8 to 19 °C, precipitation 0.0 mm (4 %), wind up to 9 km/h. Tomorrow: rain, 11 to 13 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | overcast | 8 °C | 19 °C | 0.0 mm | 9 km/h |
| Tomorrow | rain | 11 °C | 13 °C | 14.0 mm | 13 km/h |
| Wed 4 Nov | overcast | 13 °C | 20 °C | 0.0 mm | 13 km/h |
| Thu 5 Nov | drizzle | 11 °C | 19 °C | 2.4 mm | 23 km/h |
| Fri 6 Nov | light rain | 11 °C | 13 °C | 8.8 mm | 9 km/h |
| Sat 7 Nov | overcast | 5 °C | 11 °C | 0.0 mm | 17 km/h |
| Sun 8 Nov | overcast | 4 °C | 8 °C | 0.0 mm | 17 km/h |
Tomorrow's weather in Constance Bay
Tomorrow, Tuesday 3 Nov, in Constance Bay: rain, from 11 to 13 °C, 14.0 mm of precipitation (probability 79 %), wind up to 13 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  overcast | 13 °C | 0.0 mm | 10 % | 8 km/h |
| 03:00 | overcast | 11 °C | 0.0 mm | 18 % | 3 km/h |
| 06:00 | overcast | 11 °C | 0.0 mm | 59 % | 7 km/h |
| 09:00 |  light rain | 11 °C | 1.8 mm | 68 % | 9 km/h |
| 12:00 |  light drizzle | 12 °C | 0.4 mm | 65 % | 13 km/h |
| 15:00 | light rain | 12 °C | 1.4 mm | 64 % | 13 km/h |
| 18:00 | drizzle | 12 °C | 0.7 mm | 48 % | 9 km/h |
| 21:00 | overcast | 13 °C | 0.0 mm | 21 % | 10 km/h |
Frequently asked questions
Will it rain tomorrow in Constance Bay?
Yes: 14.0 mm expected, probability 79 %.
How warm will it be tomorrow in Constance Bay?
Between 11 and 13 °C.
The weekend
This weekend in Constance Bay: Saturday overcast, 5 to 11 °C, Sunday overcast, 4 to 8 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Sat 7 Nov | overcast | 5 °C | 11 °C | 0.0 mm | 17 km/h |
| Sun 8 Nov | overcast | 4 °C | 8 °C | 0.0 mm | 17 km/h |
Hour by hour
The next 48 hours in Constance Bay, hour by hour: temperature from 9 to 19 °C, 14.0 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 08:00 |  sunny | 9 °C | 0.0 mm | 2 % | 4 km/h |
| 09:00 | sunny | 11 °C | 0.0 mm | 2 % | 4 km/h |
| 10:00 | sunny | 13 °C | 0.0 mm | 2 % | 3 km/h |
| 11:00 | sunny | 14 °C | 0.0 mm | 2 % | 4 km/h |
| 12:00 | overcast | 16 °C | 0.0 mm | 2 % | 6 km/h |
| 13:00 | overcast | 18 °C | 0.0 mm | 2 % | 7 km/h |
| 14:00 | overcast | 19 °C | 0.0 mm | 2 % | 8 km/h |
| 15:00 | overcast | 19 °C | 0.0 mm | 2 % | 6 km/h |
| 16:00 | overcast | 18 °C | 0.0 mm | 2 % | 2 km/h |
| 17:00 | overcast | 16 °C | 0.0 mm | 2 % | 4 km/h |
| 18:00 | overcast | 15 °C | 0.0 mm | 2 % | 4 km/h |
| 19:00 | overcast | 14 °C | 0.0 mm | 2 % | 7 km/h |
| 20:00 | overcast | 14 °C | 0.0 mm | 2 % | 8 km/h |
| 21:00 | overcast | 14 °C | 0.0 mm | 3 % | 9 km/h |
| 22:00 | overcast | 14 °C | 0.0 mm | 3 % | 8 km/h |
| 23:00 | overcast | 13 °C | 0.0 mm | 4 % | 7 km/h |
| 00:00 | overcast | 13 °C | 0.0 mm | 10 % | 8 km/h |
| 01:00 | overcast | 13 °C | 0.0 mm | 11 % | 2 km/h |
| 02:00 | overcast | 12 °C | 0.0 mm | 11 % | 5 km/h |
| 03:00 | overcast | 11 °C | 0.0 mm | 18 % | 3 km/h |
| 04:00 | overcast | 11 °C | 0.0 mm | 30 % | 8 km/h |
| 05:00 | drizzle | 12 °C | 0.7 mm | 38 % | 2 km/h |
| 06:00 | overcast | 11 °C | 0.0 mm | 59 % | 7 km/h |
| 07:00 | light rain | 11 °C | 1.4 mm | 46 % | 8 km/h |
| 08:00 | light drizzle | 11 °C | 0.4 mm | 58 % | 9 km/h |
| 09:00 | light rain | 11 °C | 1.8 mm | 68 % | 9 km/h |
| 10:00 | light drizzle | 12 °C | 0.4 mm | 63 % | 10 km/h |
| 11:00 | overcast | 12 °C | 0.0 mm | 70 % | 12 km/h |
| 12:00 | light drizzle | 12 °C | 0.4 mm | 65 % | 13 km/h |
| 13:00 | light rain | 12 °C | 1.4 mm | 79 % | 11 km/h |
| 14:00 | heavy drizzle | 12 °C | 1.1 mm | 70 % | 13 km/h |
| 15:00 | light rain | 12 °C | 1.4 mm | 64 % | 13 km/h |
| 16:00 | light rain | 12 °C | 1.4 mm | 69 % | 9 km/h |
| 17:00 | rain | 12 °C | 2.5 mm | 58 % | 8 km/h |
| 18:00 | drizzle | 12 °C | 0.7 mm | 48 % | 9 km/h |
| 19:00 | light drizzle | 13 °C | 0.4 mm | 35 % | 9 km/h |
| 20:00 | overcast | 13 °C | 0.0 mm | 21 % | 9 km/h |
| 21:00 | overcast | 13 °C | 0.0 mm | 21 % | 10 km/h |
| 22:00 | overcast | 13 °C | 0.0 mm | 21 % | 9 km/h |
| 23:00 | overcast | 13 °C | 0.0 mm | 21 % | 9 km/h |
| 00:00 | overcast | 13 °C | 0.0 mm | 21 % | 8 km/h |
| 01:00 | overcast | 14 °C | 0.0 mm | 21 % | 9 km/h |
| 02:00 | overcast | 14 °C | 0.0 mm | 7 % | 9 km/h |
| 03:00 | overcast | 14 °C | 0.0 mm | 7 % | 8 km/h |
| 04:00 | overcast | 14 °C | 0.0 mm | 7 % | 8 km/h |
| 05:00 | overcast | 14 °C | 0.0 mm | 7 % | 8 km/h |
| 06:00 | overcast | 13 °C | 0.0 mm | 7 % | 8 km/h |
| 07:00 | overcast | 13 °C | 0.0 mm | 7 % | 9 km/h |
Location of Constance Bay
Constance Bay lies at 61 m, 146 m below the average of the 265 places we cover in Ontario (207 m). That makes it the 10th lowest of the 265. The main town, Toronto, lies 330 km to the south-west. The nearest places we cover are Arnprior (22 km to the west), Chelsea (23 km to the east), Aylmer, Quebec (24 km to the south-east) and Cantley (25 km to the east). With about 2,314 inhabitants according to GeoNames, Constance Bay is the 258th largest of the 265 places we cover in Ontario.
Today is 13.4 °C above the November normal (5.7 °C).
Climate of Constance Bay: 1991–2020 normals
In Constance Bay, July is typically the warmest month (up to 25.7 °C on average), while January is the coldest at -13.3 °C. June sees the most rain, with around 101 mm.
By season (average highs, 1991–2020 normals): winter -2.9 °C and 204 mm of rain, spring 10.5 °C and 244 mm, summer 24.6 °C and 290 mm, autumn 13.0 °C and 272 mm. The wettest season is summer (29 % of the annual total), the driest winter (20 %).
| Max T (°C) | Min T (°C) | Rainfall (mm) | Rainy days | |
|---|---|---|---|---|
| January | -4.7 | -13.3 | 71 | 11 |
| February | -3.2 | -11.9 | 56 | 9 |
| March | 2.3 | -6.4 | 70 | 10 |
| April | 10.5 | 0.7 | 87 | 11 |
| May | 18.7 | 8.0 | 87 | 12 |
| June | 23.4 | 13.6 | 101 | 11 |
| July | 25.7 | 16.6 | 98 | 12 |
| August | 24.6 | 16.1 | 90 | 11 |
| September | 20.5 | 12.3 | 93 | 10 |
| October | 12.9 | 5.9 | 96 | 12 |
| November | 5.7 | -0.3 | 83 | 11 |
| December | -0.7 | -7.3 | 77 | 11 |
Compared with Toronto, the main town 330 km to the south-west, highs in the warmest month are 0.7 °C lower here, and the year brings 200 mm more 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: Arnprior (22 km to the west): equally warm summers and 38 mm drier a year; Chelsea (23 km to the east): summers 0.3 °C cooler and 19 mm wetter a year; Kanata (26 km to the south-east): summers 0.2 °C warmer and 41 mm drier a year. Among the 265 places we cover in Ontario whose normals come from the ERA5 reanalysis, Constance Bay ranks 122nd for summer warmth and 69th for annual precipitation. The warmest summers are in LaSalle and Tecumseh and the coolest in Shuniah Township; the wettest year is in Crystal Beach and the driest in Kashechewan.
What is the warmest month in Constance Bay?
The warmest month in Constance Bay is typically July, averaging 25.7 °C (1991–2020 normal). The coldest is January, at -13.3 °C.
How many rainy days does Constance Bay get per year?
Constance Bay sees about 133 rainy days a year, adding up to roughly 1009 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in Constance Bay?
Between July and January, the temperature gap in Constance Bay runs to about 39.0 °C, based on the 1991–2020 normals.