Ottawa weather live forecast

Tomorrow's maximum temperature in Ottawa is expected to be 7°C.

  • Monday
    17th Mar
    Broken clouds
  • Tuesday
    18th Mar
    Broken clouds
  • Wednesday
    19th Mar
    Broken clouds
  • Thursday
    20th Mar
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Friday
    21st Mar
    Cloudy with sleet or snow (0-2 mm of rainfall expected)

5-day weather forecast updated at 04:00 on Monday 17th March 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 Monday 17th March 2025

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 7°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north-west.

  • 7°C maximum temperature7
    °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 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 3°C wind chill3
    °C wind chill
  • Gentle breeze of 18 kph from the North-West18
    kph wind from NW

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Ottawa weather for Tuesday 18th March 2025

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 10°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-east.

  • 10°C maximum temperature10
    °C maximum temperature
  • -1°C minimum temperature-1
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 8°C wind chill8
    °C wind chill
  • Light breeze of 11 kph from the South-East11
    kph wind from SE

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Ottawa weather for Wednesday 19th March 2025

Expect broken clouds in Ottawa, Ontario with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the east.

  • 15°C maximum temperature15
    °C maximum temperature
  • 2°C minimum temperature2
    °C minimum temperature
  • Broken clouds
    broken clouds
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Gentle breeze of 17 kph from the East17
    kph wind from E

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Ottawa weather for Thursday 20th March 2025

Expect mostly cloudy with light rain in Ottawa, Ontario with a maximum temperature of 14°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 63% chance of some rain and a moderate breeze of 23 kph from the south.

  • 14°C maximum temperature14
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 63% chance of some rain63
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 14°C wind chill14
    °C wind chill
  • Moderate breeze of 23 kph from the South23
    kph wind from S

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Ottawa weather for Friday 21st March 2025

Expect cloudy with sleet or snow in Ottawa, Ontario with a maximum temperature of 6°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 14% chance of some sleet or snow and a moderate breeze of 23 kph from the north-west.

  • 6°C maximum temperature6
    °C maximum temperature
  • -1°C minimum temperature-1
    °C minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 14% chance of some sleet or snow14
    % chance of some sleet or snow
  • 0-2 mm of sleet/snow expected<2
    mm of sleet/snow expected
  • 2°C wind chill2
    °C wind chill
  • Moderate breeze of 23 kph from the North-West23
    kph wind from NW

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

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