2019 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 2019 Old Farmer’s Almanac, available online and in stores.

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

Free 2-Month Weather Forecast

June 2019 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Jun 1-4Showers; hot east, cool west
Jun 5-12A few showers, cool
Jun 13-22Scattered t-storms, cool east; sunny, warm west
Jun 23-30Scattered t-storms, turning hot
Junetemperature 16.5°C (1° below avg.)
precipitation 140mm (60mm above avg.)

July 2019 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Jul 1-4Showers, hot
Jul 5-6Sunny, cool
Jul 7-13Scattered t-storms, hot
Jul 14-20Sunny, warm
Jul 21-31A few showers, cooler
Julytemperature 21°C (avg.)
precipitation 110mm (30mm above avg.)

Annual Weather Summary
November 2018 to October 2019

Winter temperatures will be close to normal, on average, with above-normal precipitation and snowfall. The coldest periods will be in mid- and late December, early and late January, and early February. The snowiest periods will be in early December, mid-February, and early to mid-March. April and May will be cooler than normal, with above-normal precipitation. Summer will be cooler and rainier than normal. The hottest periods will be from late June into early July and in early to mid-July and mid-August. September and October will be cooler and rainier 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 2018 to October 2019

Temperature and Precipitation Chart, November 2018 to October 2019 for Southern Ontario Region

Reader Comments

Leave a Comment

June 27

Hi Nella, June 27th is predicted to be a rain free day. It should be a nice day weather wise for a wedding but I don't control the weather lol, but there's a bigger chance of no rain then rain so that should be good news for you.. hopefully.

Weather forcast for September 14th 2019

Planning a Milestone party for my Spouse
Out doors in port mcnicoll midland Ontario.

July 20th outdoor wedding

Hi, Any idea the weather forecast for July 20th? My daughter is getting married outdoors in Astorville, On. We are hoping for a beautiful day :) thank you!

movie shoot

Planning a feature film shoot that starts either the last week of Sept or first week of Oct in North Bay. Was hoping for a few days of warmer, sunny weather - there are several scenes with a convertible (mainly stationary). How big a difference do you think it would make to start on the 26th vs the 30th of Sept?

Thanks!

Movie shoot

The weather should be fantastic only if you have me as an extra in it!

Dry October

Hi Evan, I'd wait until September 30 as there will most likely be some rain over the 28-29 weekend and then a good chance it'll be dry for a little stretch after that.

October 19, 2019 Wedding

Any predictions for weather on Oct 19, 2019 in the Simcoe region area?

September 14th wedding

planning an outdoor wedding in Midland, ON on September 14th, 2019 in my mother's backyard, what does the forecast say?

Thank you

August 10th wedding

Hi!
What does the weather in Bradford, ON look like on August 10th for an outdoor wedding? Thank-you!

Weather for August 10 in Alliston, Ontario

Checking on prediction of weather for August 10 in Alliston, Ontario. Having a large outdoor 80th birthday party and praying for no rain.

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