Ontario Weather Forecast

Check the Ontario weather forecast for the next 5 days before you head off on holiday. The 5-day forecast shows the prevailing weather conditions, maximum & minimum temperatures, hours of sunshine per day, wind speed & direction and more. Tomorrow's maximum temperature in Ontario is expected to be 25°C. The weather forecast shown below is for Toronto.

Ontario: 5-day weather forecast

Click on a symbol below to see the daily forecast in detail.

Last updated at 04:03 on Wednesday 16th August 2017 GMT

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All months

Metric (°C / mm)  |  Imperial (°F / inches)

  • Browse the top offers on holidays to Ontario
  • Browse the latest Destinology sale offers & online deals
  • Filter deals by departure airport, star rating & more

More about Ontario

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All months

Ontario weather forecast by day

Below are the detailed weather forecasts for Ontario for the next 5 days. The forecasts shown are for Toronto and may not represent the whole of Ontario. Browse more destinations in Ontario to view more weather forecasts.

Ontario weather for Wednesday 16th August 2017

Below is the Ontario weather forecast for Wednesday 16th August 2017. Expect scattered clouds in Ontario with a maximum temperature of 25°C and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-east.

  • 25
    °C maximum temperature
  • 17
    °C minimum temperature
  • scattered clouds
  • 8
    hours of sunshine
  • 0
    mm of rainfall expected
  • 0
    no heat & humidity
  • 12
    kph wind from SE

Back to top

Ontario weather for Thursday 17th August 2017

Below is the Ontario weather forecast for Thursday 17th August 2017. Expect isolated thunderstorms in Ontario with a maximum temperature of 25°C and 8 hours of bright sunshine. There are 5-10 mm of rainfall expected with 71% chance of some rain and a moderate breeze of 24 kph from the east.

  • 25
    °C maximum temperature
  • 20
    °C minimum temperature
  • isolated thunderstorms
  • 8
    hours of sunshine
  • 71
    % chance of some rain
  • <10
    mm of rainfall expected
  • 0
    no heat & humidity
  • 24
    kph wind from E

Back to top

Ontario weather for Friday 18th August 2017

Below is the Ontario weather forecast for Friday 18th August 2017. Expect isolated thunderstorms in Ontario with a maximum temperature of 28°C, low levels of heat & humidity and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 78% chance of some rain and a moderate breeze of 28 kph from the south-west.

  • 28
    °C maximum temperature
  • 20
    °C minimum temperature
  • isolated thunderstorms
  • 5
    hours of sunshine
  • 78
    % chance of some rain
  • <20
    mm of rainfall expected
  • L
    low heat & humidity
  • 28
    kph wind from SW

Back to top

Ontario weather for Saturday 19th August 2017

Below is the Ontario weather forecast for Saturday 19th August 2017. Expect broken clouds in Ontario with a maximum temperature of 27°C, low levels of heat & humidity and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the west.

  • 27
    °C maximum temperature
  • 18
    °C minimum temperature
  • broken clouds
  • 4
    hours of sunshine
  • 0
    mm of rainfall expected
  • L
    low heat & humidity
  • 17
    kph wind from W

Back to top

Ontario weather for Sunday 20th August 2017

Below is the Ontario weather forecast for Sunday 20th August 2017. Expect sunshine and showers in Ontario with a maximum temperature of 27°C, low levels of heat & humidity and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and a light breeze of 12 kph from the west.

  • 27
    °C maximum temperature
  • 21
    °C minimum temperature
  • sunshine and showers
  • 8
    hours of sunshine
  • 34
    % chance of some rain
  • <2
    mm of rainfall expected
  • L
    low heat & humidity
  • 12
    kph wind from W

Back to top

  • Pay now online & save up to 20% on Budget car hire
  • Discounts vary by selected locations worldwide
  • Including mainland France, Germany, Italy, Spain & UK

Back to top

Ontario weather by month

Check Ontario weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

Back to top

Popular Ontario destinations

More Ontario destinations

All destinations (A to Z)

Can't see your chosen destination? Use our A to Z search to find your required the holiday weather guide:

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  

More destinations

Related posts

Popular travel offers

Top ^