Ottawa weather live forecast

Today's maximum temperature in Ottawa is expected to be 22°C. Select a day from the live weather forecast for Ottawa, Ontario, Canada for more weather parameters.

  • Saturday
    18th Apr
    Mostly cloudy with rain (10-20 mm of rainfall expected)
  • Sunday
    19th Apr
    Mostly cloudy with light rain (2-5 mm of rainfall expected)
  • Monday
    20th Apr
    Scattered clouds
  • Tuesday
    21st Apr
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Wednesday
    22nd Apr
    Broken clouds

5-day weather forecast updated at 04:00 on Saturday 18th April 2026 GMT

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

Ottawa weather forecast by day

Below are the detailed weather forecasts for Ottawa for the next 5 days.

Ottawa weather for Saturday 18th April 2026

Expect mostly cloudy with rain in Ottawa, Ontario with a maximum temperature of 22°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 96% chance of some rain and a moderate breeze of 26 kph from the south.

  • 22°C maximum temperature22
    °C maximum temperature
  • 8°C minimum temperature8
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 96% chance of some rain96
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 26 kph from the South26
    kph wind from S

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Ottawa weather for Sunday 19th April 2026

Expect mostly cloudy with light rain in Ottawa, Ontario with a maximum temperature of 10°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 23% chance of some rain and a moderate breeze of 22 kph from the west.

  • 10°C maximum temperature10
    °C maximum temperature
  • 1°C minimum temperature1
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 23% chance of some rain23
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 7°C wind chill7
    °C wind chill
  • Moderate breeze of 22 kph from the West22
    kph wind from W

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Ottawa weather for Monday 20th April 2026

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 2°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • -2°C wind chill-2
    °C wind chill
  • Gentle breeze of 16 kph from the North-West16
    kph wind from NW

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Ottawa weather for Tuesday 21st April 2026

Expect mostly cloudy with light rain in Ottawa, Ontario with a maximum temperature of 7°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 61% chance of some rain and a moderate breeze of 21 kph from the south.

  • 7°C maximum temperature7
    °C maximum temperature
  • -3°C minimum temperature-3
    °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)
  • 61% chance of some rain61
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 3°C wind chill3
    °C wind chill
  • Moderate breeze of 21 kph from the South21
    kph wind from S

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Ottawa weather for Wednesday 22nd April 2026

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 11°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north-west.

  • 11°C maximum temperature11
    °C maximum temperature
  • 0°C minimum temperature0
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 11°C wind chill11
    °C wind chill
  • Gentle breeze of 13 kph from the North-West13
    kph wind from NW

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