Ottawa weather live forecast

Tomorrow's maximum temperature in Ottawa is expected to be 13°C.

  • Wednesday
    30th Apr
    Scattered clouds
  • Thursday
    1st May
    Mostly cloudy with rain (5-10 mm of rainfall expected)
  • Friday
    2nd May
    Mostly cloudy with rain (10-20 mm of rainfall expected)
  • Saturday
    3rd May
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Sunday
    4th May
    Sunshine and showers (0-2 mm of rainfall expected)

5-day weather forecast updated at 04:00 on Wednesday 30th April 2025 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 Wednesday 30th April 2025

Expect scattered clouds in Ottawa, Ontario with a maximum temperature of 13°C, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the north-west.

  • 13°C maximum temperature13
    °C maximum temperature
  • 2°C minimum temperature2
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 13 hours of bright sunshine13
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 27 kph from the North-West27
    kph wind from NW

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Ottawa weather for Thursday 1st May 2025

Expect mostly cloudy with rain in Ottawa, Ontario with a maximum temperature of 14°C, maximum UV of 5 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 96% chance of some rain and a gentle breeze of 16 kph from the east.

  • 14°C maximum temperature14
    °C maximum temperature
  • 4°C minimum temperature4
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 96% chance of some rain96
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 14°C wind chill14
    °C wind chill
  • Gentle breeze of 16 kph from the East16
    kph wind from E

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Ottawa weather for Friday 2nd May 2025

Expect mostly cloudy with rain in Ottawa, Ontario with a maximum temperature of 21°C, maximum UV of 6 (High) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 96% chance of some rain and a moderate breeze of 22 kph from the west.

  • 21°C maximum temperature21
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 2 hours of bright sunshine2
    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
  • 21°C wind chill21
    °C wind chill
  • Moderate breeze of 22 kph from the West22
    kph wind from W

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Ottawa weather for Saturday 3rd May 2025

Expect mostly cloudy with light rain in Ottawa, Ontario with a maximum temperature of 16°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 16% chance of some rain and a light breeze of 12 kph from the west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 16% chance of some rain16
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Light breeze of 12 kph from the West12
    kph wind from W

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Ottawa weather for Sunday 4th May 2025

Expect sunshine and showers in Ottawa, Ontario with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 6% chance of some rain and a gentle breeze of 17 kph from the north-west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 7°C minimum temperature7
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 6% chance of some rain6
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Gentle breeze of 17 kph from the North-West17
    kph wind from NW

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

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