2021 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

January 2021 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Jan 1-5Flurries, cold
Jan 6-12Snow, then flurries; cold
Jan 13-19Snow showers, cold
Jan 20-25Flurries, cold
Jan 26-31Lake snows, cold
Januarytemperature -10°C (3°C below avg.)
precipitation 75mm (15mm above avg.)

February 2021 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Feb 1-7A few showers, quite mild
Feb 8-15Periods of rain and snow east, snow west; mild
Feb 16-20Sunny, mild
Feb 21-28Rain and snow showers east, flurries west; turning cold
Februarytemperature -2°C (3°C above avg.)
precipitation 85mm (25mm above avg.)

Annual Weather Summary
November 2020 to October 2021

Winter temperatures will be slightly below normal in the east and slightly above normal in the west, with the coldest periods in early to mid-December, from late December into early January, and in mid- and late January. Precipitation and snowfall will be much above normal, with the snowiest periods in mid-December, early to mid-January, and early to mid-March. April and May will be cooler and rainier than normal in the east and warmer and drier in the west. Summer will be slightly cooler and rainier than normal in the east and hotter with near-normal rainfall in the west. The hottest periods will be in early June and mid-August. September and October will be cooler than normal, with near-normal precipitation.

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 2020 to October 2021

Temperature and Precipitation Chart, November 2020 to October 2021 for Hamilton, ON

Reader Comments

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Northern & Southern Ontario

Here in Ontario the north starts as you enter the Nipissing Parry Sound District which is south of Sudbury not north of Thunder Bay. Anything in Southern Ontario is one to two weeks ahead of Northern Ontario (north of Parry Sound) in terms of warming up in the Spring. You really need to get your calendar fixed!

Temp

I have to be honest you guys were way off about this month of March. Most of the month is foretasted to be above normal and you have it several degrees below normal.

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

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