2019-2020 Long Range Weather Forecast for Cornwall, ON

Get the Long Range Weather for Your Location

See long range weather forecasts for the next 60 days from The Old Farmer’s Almanac! Our long range forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to sporting events and outdoor activities.

To see long term forecasts for the entire year, pick up a copy of The 2020 Old Farmer’s Almanac, available online and in stores.

Note: Long range forecasts are regional, not city-specific.

Free 2-Month Weather Forecast

September 2019 Long Range Weather Forecast for Southern Quebec
DatesWeather Conditions
Sep 1-7Scattered t-storms, warm
Sep 8-20A few showers, cool
Sep 21-23Showers, warm
Sep 24-30Periods of rain and wet snow, cold
Septembertemperature 13°C (1° below avg.)
precipitation 105mm (50mm above avg. east, 20mm below west)

October 2019 Long Range Weather Forecast for Southern Quebec
DatesWeather Conditions
Oct 1-12A few showers, mild
Oct 13-18Sunny, cool
Oct 19-22Snow showers, cold
Oct 23-31Showers, mild
Octobertemperature 7°C (1° below avg.)
precipitation 60mm (20mm below avg.)

Annual Weather Summary
November 2019 to October 2020

Winter temperatures will be near normal in the east and above normal in the west, with the coldest periods in early to mid- and late December, early to mid- and late January, and early and late February. Precipitation will be above normal, with snowfall generally below normal. The snowiest periods will be in late November, early and mid-December, mid-January, mid- to late February, and late March. April and May will have temperatures below normal in the east and above normal in the west and be drier than normal. Summer will be hotter and rainier than normal, with the hottest periods in mid-June; early, mid-, and late July; and early August. September and October will be slightly warmer and rainier than normal.

Map showing Old Farmer's Almanac long range weather region number 2

About the Southern Quebec Region

The Southern Quebec long range weather region includes all or part of the following provinces: ONTARIO (Belleville, Brockville, Cornwall, Kanata, Kingston, Ottawa, Pembroke, Petawawa), QUEBEC (Alma, Amos, Buckingham, Cowansville, Dolbeau, Drummondville, Joliette, Lachute, Magog, Montreal, Quebec, Saint-Georges, Saint-Hyacinthe, Shawinigan, Sherbrooke, Sorel, Thetford Mines, Val-d'Or, Victoriaville).

Southern Quebec Neighboring Regions

Here are the regions that neighbor the Southern Quebec long range weather region:

Temperature and Precipitation November 2019 to October 2020

Temperature and Precipitation Chart, November 2019 to October 2020 for Cornwall, ON

Reader Comments

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Snowstorms

Hi I was just wondering if we would get many snowstorms this winter. Thanks

October 2019

Hello, where is the prediction for October 2019?? It shows August, September, and then skips right to November!

what did it say for November?

what did it say for November? its gone now, a lot of snow?

Hello Farmer Almanac,

Hello Farmer Almanac,

I'm curious what the predicted weather will be for September 6th-8th, 2019 for the Ottawa region. Planning for an outdoor wedding!!!

Thank you :)

Changing colors Quebec 2019

When will peak leaf changing season be in 2019?

I was wondering the same

I was wondering the same exact thing.

End of July 2019

Does the Farmer's Almanac have a prediction on the weather for the end of the July. I'm hoping to host a large outdoor party but I need the weather to co-operate :)

Été 2019

Bonjour

J'aimerais savoir si l'été sera plus chaud que 1992 et 2017 je déteste les été frais un été normal pour mois est les 30 degré et plus.Ont va tu avoir des 30 degré cette été ou sa risque de ressemblé a 1992 et 2017 ?.

Pour la Montérégie Saint-Jean-Sur-Richelieu.

Merci je me fit plus a vos prévisions que celle de la météo a tv qui sont dans champs souvent.Et bonne été a tous.

Ca sera un été sec avec des

Ca sera un été sec avec des températures autour des normales de saison . Ca sera pas une mauvaise été.

Été 2019

Ok merci mes a date ces mal partie il mouille au 2 jours et fais froid pour un 2 Juin 11 degré.Quand pense que l'année passée ont avais déja eu une canicule a fin Mai début Juin.Ont est souvent prit avec ce blocage d'air froid au Québec chaud partout sauf au Québec.

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