2020 Long Range Weather Forecast for Southern Ontario

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 Southern Ontario Region

Reader Comments

Leave a Comment

Weather for Manitowaning, ontario

Can never get the weather for Manitoulin Island ! We are Northern upper Great Lakes ! Even on the weather channel we are never talked about ! Not much on the upper Great Lakes at all !

more specific weather region

I would like to see Cochrane district and area which would include Kapuskasing to Timmins!

Forecast for Hamilton

The forecast has been so accurate so far! Just like astrology, how can you believe the rest when what has passed was completely wrong?

weather

Thunder Bay is not Southern it is Northern.

Location

Sudbury is not in southern Ontario. The southern Ontario forecast is not accurate for Sudbury.

"Southern" Ontario

Toronto and Thunder Bay weather temperatures are so wildly different that their agricultural hardiness zones are separated by 6 designations, indicating winter low temperatures about 30 deg higher in Toronto than in Thunder Bay. Their spring is a long time after theirs: and ours is as much as 2 weeks later than the area of Ontario S of us, in the Niagara peninsula.

Thunder Bay weather

I too live in Thunder Bay. As far as averages and precipitation go, almanac has been spot on this year. Consider The Weather Networks November prediction for this winter of hellish polar vortex episodes and a cold miserable winter. Then they retracted three weeks later. Almanac constructed their projections last spring. Yes, it’s the north and yes we have had a collection of maybe 8 very cold days... however, it’s been a blissfully decent winter as almanac said it would be.
They also said more snow. Which happened lol

Weather

Thunder Bay is considered Northwestern Ontario. It is not -6 as you guys are suggesting, but rather currently -27 as of Jan 7th 2020. Please change this

How the Almanac predicts weather

The Editors's picture

Hi, Aryanna, The weather temperature you reference is an average for the entire month. The Almanac weather isn’t meant to be viewed on a daily basis. Long-range weather is calculated over a year in advance, with predictions versus historical averages so you get a sense of what is typical (colder or warmer than average). Here is more information about how the Almanac predicts: https://www.almanac.com/content/how-old-farmers-almanac-predicts-weather For daily weather, we’d direct you to our short-range weather forecasts. We hope this is helpful.

Long range weather forecast

I was delighted to see the long range weather forecast on your page until I realised that it is for
Southern Ontario only. I do not live in Southern Ontario. I live in Thunder Bay, Northwestern Ontario. It is
1399 km from Toronto, Ontario or a 14 hr. 52 minute drive and 1006.8 km from Sudbury or a 10 hour and 53 minutes drive.
Would you please send me the long range weather forecast for January and, if possible, February for my area.
Thank you for your assistance in this regard.

Pages