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

July 2020 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Jul 1-7A few showers, warm
Jul 8-13Scattered t-storms, hot
Jul 14-18T-storms, warm
Jul 19-24Isolated t-storms, turning hot
Jul 25-28A few t-storms, hot
Jul 29-31Sunny, cool
Julytemperature 22°C (1°C above avg.)
precipitation 100mm (50mm above avg. east, 10mm below west)

August 2020 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Aug 1-6Showers, hot
Aug 7-14T-storms, then sunny, cool
Aug 15-22A few t-storms, warm
Aug 23-31Showers, cool
Augusttemperature 20°C (1°C below avg. east, 1°C above west)
precipitation 95mm (60mm above avg. east, 30mm 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

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October 19, 2019 Wedding

Any predictions for weather on Oct 19, 2019 in the Simcoe region area?

September 14th wedding

planning an outdoor wedding in Midland, ON on September 14th, 2019 in my mother's backyard, what does the forecast say?

Thank you

August 10th wedding

Hi!
What does the weather in Bradford, ON look like on August 10th for an outdoor wedding? Thank-you!

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

The Editors's picture

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

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