2020 Long Range Weather Forecast for Windsor, 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 2021 Old Farmer’s Almanac, available online and in stores.

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

Free 2-Month Weather Forecast

September 2020 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Sep 1-4Showers, cool
Sep 5-8T-storms, then sunny, cool
Sep 9-15Rainy periods, cool
Sep 16-25A few showers, cool
Sep 26-30Sunny, turning warm
Septembertemperature 14°C (1°C below avg.)
precipitation 60mm (30mm below avg.)

October 2020 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Oct 1-9Showers, mild
Oct 10-14Showers east, sunny west; cool
Oct 15-19Rainy, mild
Oct 20-25Showers east; sunny, mild west
Oct 26-31Showers, mild
Octobertemperature 12°C (2°C above avg.)
precipitation 85mm (10mm above avg.)

Annual Weather Summary
November 2019 to October 2020

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

Map showing Old Farmer's Almanac long range weather region number 3

About the Southern Ontario Region

The Southern Ontario long range weather region includes all or part of the following provinces: ONTARIO (Alliston, Amherstburg, Barrie, Bolton, Bradford, Brantford, Chatham, Cobourg, Collingwood, Elliot Lake, Fergus, Fort Erie, Georgetown, Guelph, Haileybury, Hamilton, Ingersoll, Kenora, Kitchener, Leamington, Lindsay, London, Midland, Milton, North Bay, Orangeville, Orillia, Oshawa, Owen Sound, Paris, Peterborough, Port Hope, Sarnia, Simcoe, Stouffville, Stratford, Strathroy, Sudbury, Thunder Bay, Tillsonburg, Timmins, Toronto, Uxbridge, Wallaceburg, Windsor, Woodstock).

Southern Ontario Neighboring Regions

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

Temperature and Precipitation November 2019 to October 2020

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

Reader Comments

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no snow

The Editors's picture

We hear you loud and clear. Hang in there: We are predicting a snowstorm in mid-February, with flurries between now and then.

Sor's right

Sor's right. This is not a White Christmas at all. This weather is just like November weather, and its already only a day from Christmas Eve!

Southern Ontario Weather Forecast

How on earth can this even be accurate. Timmins Sudbury Thunderbay lumped in with Southern Ontario? We have totally different climates. We have -20 happening today. Can someone clarify this for me or link me to something more Northern-based?

No cold winter please

I just found out that Environment Canada has predicted a milder than normal winter and I can't survive the cold winter anymore.

Cold Weather IN THE SUMERTIME?!!

On September 9, 2018, it was a high of 13 degrees in Etobicoke. It's still summer that day. I don't understand. I've been told that I couldn't wear just a T-shirt in February because it's not summer. But it currently IS summer and people are still telling me to wear jackets. That doesn't make any sense. Wearing a jacket should depend on what SEASON it is. I am sooo mad!


Weather depends a lot on which direction the prevailing winds are coming from. When we get warm days in the winter, (like in February 2017), the winds are frequently coming from the south, bringing warm air from the Gulf of Mexico. When we get cold days, the wind is frequently coming from Hudson's Bay or the Northwest Territories. I hope that this provides some explanation.

Canada eh

Dress how you like everyone is different, pay no mind to peoples comments and go with the flow, after all we live in Canada and our weather is unpredictable, i love our country and the weather it throws at us


I agree with everyone who comments how lucky we are to live in Canada and enjoy 4 distinct seasons. How boring and uncomfortable it would be to me to live some place where it is always warm or blistering hot and humid all year around.

Cold Weather in the Summertime

Perhaps a thermometer would help - I have coats for each temperature range as I walk my dog 4 times a day - ignore the seasons and watch the thermometer -


I read an article last month about how 2019-23 is going to be the hottest years we’ve had in years. Then I read how it’s going to be cooler in 2019?lmao. You guys better start making sense. Because you even said that this summer was gonna be cooler than normal and here we are living in pure heat (which I enjoy). So if anyone has anything to add to this. Feel free.