2020 Long Range Weather Forecast for Hamilton, 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

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.)

November 2020 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Nov 1-3Showers, mild
Nov 4-9Rain east, snow west, then sunny, cold
Nov 10-14Sunny, mild east; snow west
Nov 15-19Sunny, cold
Nov 20-27Snow showers, cold
Nov 28-30Showers, mild
Novembertemperature 2.5°C (1°C below avg. east, 2°C above west)
precipitation 100mm (avg. east, 50mm above west)

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 Hamilton, ON

Reader Comments

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More Cold Snaps

So the middle to the end of January made up for the milder start. We got our cold snap ... and snow, freezing rain, and winds. And they say there's more to come. Great! Get this winter weather over with now so we don't have a freezing rain storm in April like we did in Southern Ontario last April. Ain't winter just so much fun? It's a matter whether you like winter or not. I don't like it.

Cold Enough?

You got your wish. We're all in a winter deep freeze. It's so cold out, we can't go outside. Hope you're happy!

Northern Ontario

I beg almanac for the sake of southern Ontario, that the north and south should be separate regions. For us in the north (400km from James Bay) almanac has been bang on. There is absolutely no comparison in the south. Never has been! Given their population density, I can understand how so many people down there gat annoyed with false predictions below the snow belt

Ontariio weather.

Have always felt that EC did a pretty good job of predicting the weather. So far,,, they're quite off the mark here in S. Ontario,,, and no snow to speak of, January 05 '19.

Winter weather

Can we have 8 more snowfalls in 2019 and each time can we get 11 inches of snow and can we start the first snowfall tonight and tomorrow

Missed the snow this Christmas.

I missed the snow this Christmas. I hope there is still some coming. Otherwise the El Nino is having a great effect on this warm temps. Do you take into account the El Nino or La Nina effects?

No snow at all, none looking forward.

Clearly, these predictions are not accurate. No snow of any sort in Peterborough area, and if so, it is melted the next day with above average temperatures. No snow of any significance in the next week before Christmas it seems. So far, these long-range forecasts have fallen very short of accurate, and that's just being nice about it. Doesn't look like they're going to come true at all.


heres the real weather: no snow, mild to warm temperatures

rel weather

The Editors's picture

Oh, dear. Yes, conditions have not always gone according to plan. But hang on. Winter will arrive on December 21 and we hope more typical conditions will prevail. Thanks for letting us know.

Yeah, right!

It's DECEMBER 23RD already!!!

No signs of snow!!!