2018 Long Range Weather Forecast for Orillia, ON

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

Note: Long range forecasts are regional, not city-specific. If your city is located inside a region, the region's forecast will apply to you.

Free 2-Month Weather Forecast

April 2018 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
Apr 1-6Snow showers, cold
Apr 7-12Sunny, turning mild
Apr 13-16A few showers, warm
Apr 17-20Sunny, cool
Apr 21-24Rainy east, sunny west; cool
Apr 25-30Rainy periods, cool
Apriltemperature 5°C (avg.)
precipitation 40mm (20mm below avg. east, avg. west)

May 2018 Long Range Weather Forecast for Southern Ontario
DatesWeather Conditions
May 1-5Rainy periods, mild
May 6-13A few showers, cool
May 14-19Scattered showers, warm
May 20-27A few showers, turning cool
May 28-31Showers, warm
Maytemperature 11.5°C (1° below avg.)
precipitation 75mm (10mm above avg.)

Annual Weather Summary: November 2017 to October 2018

Winter temperatures will be above normal, with the coldest periods in mid-November, early and late December, early January, and early and mid-February. Precipitation and snowfall will be above normal in the east and below normal in the west, with the snowiest periods in late November, mid- and late December, and early to mid-March. April and May will be a bit cooler than normal, with near-normal precipitation. Summer will be hotter than normal, with rainfall below normal in Southwest Ontario and above normal elsewhere. The hottest periods will be in early and late June, early July, and mid- to late August. September and October will be warmer and slightly 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, 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 2017 to October 2018

Temperature and Precipitation Graph

Reader Comments

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Be Postive

Enjoy any weather we get . Can't control it ,hot ,cold, warm make the best of it . Remember Wynne says the carbon tax we pay help climate control. No that's smog at its best.Enjoy the weather .no tax can help it.lol

Ice storm not mentioned

Didnt see anything in April about an ice storm! Going on 2nd day now...so far have not lost power..touch wood....got lots of food, plenty of candles and the firewood is dry....bring it on Mother Nature....

lets see predictions so far of farmers almanac

So judging by information you posted for Ontario, November was a lot warmer, you said it would be a lot cooler. December was very cold you posted it would be average. January was extremely cold, coldest in decades, many broken records for consecutive -10 degrees days were broken you predicted january being extremely warm. February was very warm, you predicted it will be cold. March was 1-2 degrees colder than average, you predicted extremely warm march. April so far extremely cold, you predicted neutral. So far this year you are 0/6. and you are not just wrong...no. you are completely wrong by complete opposite extremes. are you not ashamed to call yourself a professional?

this is by far the worst prediction i ever witness in my life

For as long as I lived I have never seen less accurate weather than this. this should be criminal to post lies like this. I am in ontario and we had cold cloudy/rainy/snowy days the first 2 weeks. maybe 3 half days of sun and next 9/10 days supposed to be more rain 0 hours of sun.
. farmer predicted less than average precipitation and average temperature. well it looks like it will be the rainiest/snowiest April on record and 5 degrees cooler than normal. You lost all my credibility. If i knew I could of booked a vacation south. I need sun I have a very bad case of SAD.

WHY COMPLAIN??

Logically, the weather is "GOING TO DO WHAT IT'S GOING TO DO!"..... Enjoy it for what it is!! If it's sunny and cool or sunny and hot...it sure as heck beats the Winter and it's cloudy, dreary days. I have had S.A.D.S since childhood and ANY SUNNY DAY in Spring or Summer or Autumn - warm or cool or blistering hot beats the depressing days of Winter! BUT..... this IS CANADA and I still love this country despite it's dull, gray Winters!

I absolutely can't stand when

I absolutely can't stand when people whine and complain about the weather not being boiling hot!! Stop blaming the weather person!! They aren't Mother Nature!!!! Who wants boiling hot weather just to spend all day trying to cool off in ac???!! I hate boiling hot weather and every month should feel like autumn!!!!!! Boo hoo I hope the summer is cool as possible!!!!

You obviously don’t spend time outdoors

Spending time out in the hot sun will always be better than a cool summer .. Whether you’re at the beach or out in your backyard, nothing beats a summer’s day in the sun. I’d sacrifice a bit of cash for the AC to have warm summers any day.

I hear ya sista!!! I can't

I hear ya sista!!! I can't stand the hot, humid weather.

Hot weather

We lived 50 years ago with no Ac in the summer and had wood stoves too heat the homes. Suck it up butter cups .. I want summers at 35 and winters at -35. We are Canadians.

HOT

I LOVE HOT WEATHER , IS MAKE ME HAPPY , COLD WEATHER MAKE ME SAD .. HOT WEATHER BRING OUT PPL OUT AND LOTS OF VITAMIN D TO PPL .. :D

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