2019-2020 Long Range Weather Forecast for London, 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 Ontario
DatesWeather Conditions
Sep 1-3Showers, cool
Sep 4-6T-storms, warm
Sep 7-20A few showers, cool
Sep 21-28Rain, then sunny, cool
Sep 29-30Rain east, snow west
Septembertemperature 13°C (2° below avg.)
precipitation 110mm (20mm above avg.)

October 2019 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Oct 1-7Showers, cool
Oct 8-12Rain, then flurries, cold
Oct 13-21Sunny, turning mild
Oct 22-25Showers, mild
Oct 26-31Showers, cool
Octobertemperature 10°C (avg.)
precipitation 75mm (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 London, ON

Reader Comments

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June 2

Well, it so happens that if a shower is what you’re having, showers is what you’re likely to get on that day, with hot temps. Best wishes!

Weather in Parry Sound October 12 2019

My daughter is having an outdoor wedding will we need warm clothing and rain gear

wet weather october

Terry best to be prepared with a tent and other wet weather activities. October could bring early North westerly winds which sweep moisture of the water causing rain.

Thanksgiving weekend in St. Catharines

Can you tell me what the weather is predicted to be on Sunday October 13 2019 our son is getting married at a winery in St CATHARINES Ontario. Thanks .

October 13

We are predicting a sunny day, with mild temps, following a period of flurries and a chill.

Weather

Are we getting a white Christmas in 2019 2020

White Christmas!

Hi Sean, we'll have to wait and see but it'll most likely be a white Christmas this year.

Wedding

Our wedding date is Oct. 5th 2019 in the Torrance area of Muskoka. Any weather predictions? Praying the rain will stay away!

weather on July 12 to Huly 20

what is the weather like in July 12th to 20 th

I pray that you will have

I pray that you will have beautiful weather for your wedding day.

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