2020 Long Range Weather Forecast for Barrie, 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

April 2020 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Apr 1-10Sunny, cool
Apr Rain,then sunny, mild
Apr 11-16Rain, then sunny, cool
Apr 17-19Rain, then sunny, cool
Apr 20-23A few showers, cool
Apr 24-30Rainy periods, turning warmer
Apriltemperature 6°C (1°C below avg.)
precipitation 75mm (10mm above avg.)

May 2020 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
May 1-4Sunny, warm
May 5-10A few showers, seasonable
May 11-21Scattered t-storms, turning hot
May 22-31A few showers, cool
Maytemperature 15.5°C (3°C above avg.)
precipitation 70mm (30mm above avg. east, 40mm 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 Barrie, ON

Reader Comments

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September 7 Outdoor Festival

Looking to throw an outdoor neighbourhood festival on Saturday, September 7. Are we looking at a sunny day, or rainy and cool? Thx!

September 7 Outdoor Festival

and sorry - the festival would be in TORONTO, ON.

The Latter

Hi, Sara: We’re actually showing a little wet and a little cool, but no prob! Just means more hot food and more hot dancin’! Good luck to all and thanks for asking!

Oct 12 2019 Wedding

Getting married Thanksgiving weekend in Milton, ON. Hoping for an outdoor ceremony! What's our chances?

Congratulations!

Hi, Kimberly: Your chances for a happy marriage are 100%, take it from us! And your chances for an outdoor ceremony are great, too, although we would suggest considering seat warmers, as it might be cooler, even with a few of those F-words (uh, flurries). That’s the bad news. The great news is that this is right before a beautiful sunny spell, so if our forecast slides back in time just a little, you are into the clear in all senses of the word. Either way, it will be a wedding to remember, we’re sure!

Pig & Corn Roast

I’m having a Pig & Corn Roast with live entertainment in Rodney, Ontario on August 10th. Can you please let me know if I need tents or are we looking for a fabulous day and evening ☀️
Thank you!

Tents Subject

Hi, Margie: You are looking at a fabulous day and evening for sure! But maybe with a tent or two, as we are looking at some T-storms and maybe it not being really super hot. Plus heavy drool. Plus blizzards of napkins. Have fun and thanks for asking!

Really worried for June 27th outdoor wedding!!!

Looks like my wedding day is the one day their might be thunderstorms... any more accurate predictions than weather network and accuweather?? It's in Windsor, ON!

June 27

Hi Nella, June 27th is predicted to be a rain free day. It should be a nice day weather wise for a wedding but I don't control the weather lol, but there's a bigger chance of no rain then rain so that should be good news for you.. hopefully.

Weather forcast for September 14th 2019

Planning a Milestone party for my Spouse
Out doors in port mcnicoll midland Ontario.

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