Ontario weather live forecast

Tomorrow's maximum temperature in Ontario is expected to be 10°C.

  • Tuesday
    15th Apr
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Wednesday
    16th Apr
    Broken clouds
  • Thursday
    17th Apr
    Clear skies
  • Friday
    18th Apr
    Mostly cloudy with rain (5-10 mm of rainfall expected)
  • Saturday
    19th Apr
    Mostly cloudy with rain (10-20 mm of rainfall expected)

5-day weather forecast updated at 04:00 on Tuesday 15th April 2025 GMT

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The 5-day weather forecast for Ontario (Toronto) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

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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 Tuesday 15th April 2025

Expect mostly cloudy with light rain in Ontario with a maximum temperature of 10°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 41% chance of some rain and a fresh breeze of 34 kph from the west.

  • 10°C maximum temperature10
    °C maximum temperature
  • 0°C minimum temperature0
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 41% chance of some rain41
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 6°C wind chill6
    °C wind chill
  • Fresh breeze of 34 kph from the West34
    kph wind from W

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Ontario weather for Wednesday 16th April 2025

Expect broken clouds in Ontario with a maximum temperature of 5°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 32 kph from the north-west.

  • 5°C maximum temperature5
    °C maximum temperature
  • -1°C minimum temperature-1
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 0°C wind chill0
    °C wind chill
  • Fresh breeze of 32 kph from the North-West32
    kph wind from NW

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Ontario weather for Thursday 17th April 2025

Expect clear skies in Ontario with a maximum temperature of 10°C, maximum UV of 6 (High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the west.

  • 10°C maximum temperature10
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Clear skies
    clear skies
  • 14 hours of bright sunshine14
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 18 kph from the West18
    kph wind from W

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Ontario weather for Friday 18th April 2025

Expect mostly cloudy with rain in Ontario with a maximum temperature of 15°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 81% chance of some rain and a moderate breeze of 20 kph from the south-east.

  • 15°C maximum temperature15
    °C maximum temperature
  • 1°C minimum temperature1
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 81% chance of some rain81
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Moderate breeze of 20 kph from the South-East20
    kph wind from SE

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Ontario weather for Saturday 19th April 2025

Expect mostly cloudy with rain in Ontario with a maximum temperature of 11°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 50% chance of some rain and a fresh breeze of 30 kph from the north-west.

  • 11°C maximum temperature11
    °C maximum temperature
  • 1°C minimum temperature1
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 50% chance of some rain50
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 11°C wind chill11
    °C wind chill
  • Fresh breeze of 30 kph from the North-West30
    kph wind from NW

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

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