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 2020 Old Farmer’s Almanac, available online and in stores.

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

Free 2-Month Weather Forecast

February 2020 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Feb 1-7Snow showers, cold
Feb 8-18Periods of rain and snow east, flurries west; mild
Feb 19-20Snowstorm
Feb 21-29Snow showers; cold, then mild
Februarytemperature -4°C (1°C above avg.)
precipitation 80mm (20mm above avg.)

March 2020 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Mar 1-5Snow and ice, then snow showers east; flurries west; cold
Mar 6-9Snow, then flurries, cold
Mar 10-14Showers east, sunny west; mild
Mar 15-22Periods of rain and snow east, snow west; cold
Mar 23-31Flurries, cold
Marchtemperature -3°C (3°C below avg.)
precipitation 70mm (40mm above avg. east, 10mm below 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

Leave a Comment

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.

October 5 wedding

I'm planning on having a backyard wedding October 5th, 2019 in Kitchener, Ontario. Weather forecast?

Fall Leaves

Looking to view the fall leaves in Huntsville either weekend of September 28 or weekend of October 19...which do you think is better? Will the fall colours be early or late this year?

Fall leaves

Hi Monique, if it was up to me I'd go on the October 19th weekend just because it's later in the season and the leaves will have changed colour by then and it might be too early still on the September 28th weekend. Also there's a bigger chance of rain on the September 28th weekend. I think the fall colours will be a little earlier then the past few years but the last weekend in September will most likely be too early to have a good view of the colourful leaves.

Wedding weather..

Wedding planned for August 4th in Cambridge....rain or shine? ...

Not to Worry

Hi, Gillian: Scattered showers and warm, but we wouldn’t worry about it. Have a great time!

Having my wedding on Aug.31

Having my wedding on Aug.31,2019 and its outdoors in Stratford ontario any idea of the weather

Same Thing

Hi, Amanda: See below. Best wishes from all of us here to both of you!

August 31st 2019

Having an outdoor event on August 31, 2019 in North Bay Ontario. Please tell me I wont be needing a winter or raincoat.

Not All Day

Hi: You won’t be needing a winter coat or raincoat. All day, that is. But seriously: Sunny and cool, no prob! Good luck!

Pages