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

April 2019 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Apr 1-4Sunny, cool
Apr 5-11Rain, then sunny, mild
Apr 12-14Sunny, cool
Apr 15-19Rain, then sunny, cool
Apr 20-24Showers, warm
Apr 25-30Rainy periods, cool
Apriltemperature 6°C (1° below avg.)
precipitation 80mm (10mm below avg. east, 40mm above west)

May 2019 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
May 1-4Rainy east, sunny west; cool
May 5-11Rainy periods, cool
May 12-14Sunny, cool
May 15-23A few showers; warm, then cool
May 24-28Sunny, cool
May 29-31Showers, warm
Maytemperature 10.5°C (2° below avg.)
precipitation 95mm (20mm 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

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June 2 weather

Planning to have an outdoor party on June 2nd. What should I expect for the weather?

Getting Married!

I am having an outdoor wedding on September 28th in horseshoe valley. Any weather predictions that far in advance?

WEDDING - OCTOBER 19, 2019 - BRAMPTON, ON

Our Wedding Date is October 19th of this year in Brampton, Ontario. What is the prediction for the weather on that day, as well as the week leading up to the 19th? I know where I am planning to have pictures will not work if it is raining, or just after a rainfall. I have other places to go have pictures taken, but I am really hoping to have pictures at the outdoor location.

Fishing trip

Going to inverhuron at the end of May camping,I was wondering what to expect weather wise?

Canoe trip

Also meant to ask if you have any suggestions for a better time to go weather wise

Proposed canoe trip

We are thinking of going on our annual 10 day canoe trip in the end of July, into August. Any idea of the weather we may expect in Algonquin park?

Outside wedding aug 24 2019

Hello was wandering if you might have an indication of the weather aug 24 or should we have in September instead? It’s our wedding in our new home backyard!

Hello,

Hello,
We too have planned our outdoor, backyard wedding for Aug 24. I could have wrote that post myself! Not really sure how this works and if the organization will reply to your question, but I’ll be looking for a response as well. We don’t really want tents . Thanks and good luck!!

Garden Party

Further to my inquiry: the date is Sunday July 28 2019 and is in Cambridge Ontario.

Parasol Weather

Hi, Teresa and Edwin: We show a few showers and slightly cooler (not a bad thing) that week, but on and off, nothing to worry about. We hope your mom has a nice party–she sure has nice kids! Have a parasol ready to shade her from showers OR sun! And thanks for asking!

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