Ottawa weather live forecast

Today's maximum temperature in Ottawa is expected to be -9°C. Select a day from the live weather forecast for Ottawa, Ontario, Canada for more weather parameters.

5-day weather forecast updated at 04:00 on Monday 15th December 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 15th December 2025

Expect broken clouds in Ottawa, Ontario with a maximum temperature of -9°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 13 kph from the west.

  • -9°C maximum temperature-9
    °C maximum temperature
  • -15°C minimum temperature-15
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -15°C wind chill-15
    °C wind chill
  • Gentle breeze of 13 kph from the West13
    kph wind from W

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Ottawa weather for Tuesday 16th December 2025

Expect broken clouds in Ottawa, Ontario with a maximum temperature of -2°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and a moderate breeze of 21 kph from the south.

  • -2°C maximum temperature-2
    °C maximum temperature
  • -12°C minimum temperature-12
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -8°C wind chill-8
    °C wind chill
  • Moderate breeze of 21 kph from the South21
    kph wind from S

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Ottawa weather for Wednesday 17th December 2025

Expect cloudy with sleet or snow in Ottawa, Ontario with a maximum temperature of 1°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of sleet/snow expected with 37% chance of some sleet or snow and a moderate breeze of 23 kph from the south-west.

  • 1°C maximum temperature1
    °C maximum temperature
  • -8°C minimum temperature-8
    °C minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 37% chance of some sleet or snow37
    % chance of some sleet or snow
  • 0-2 mm of sleet/snow expected<2
    mm of sleet/snow expected
  • -4°C wind chill-4
    °C wind chill
  • Moderate breeze of 23 kph from the South-West23
    kph wind from SW

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Ottawa weather for Thursday 18th December 2025

Expect mostly cloudy with light rain in Ottawa, Ontario with a maximum temperature of 4°C and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 73% chance of some rain and a moderate breeze of 22 kph from the south.

  • 4°C maximum temperature4
    °C maximum temperature
  • -8°C minimum temperature-8
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 73% chance of some rain73
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 0°C wind chill0
    °C wind chill
  • Moderate breeze of 22 kph from the South22
    kph wind from S

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Ottawa weather for Friday 19th December 2025

Expect cloudy with sleet or snow in Ottawa, Ontario with a maximum temperature of 2°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of sleet/snow expected with 49% chance of some sleet or snow and a moderate breeze of 24 kph from the west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -14°C minimum temperature-14
    °C minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 49% chance of some sleet or snow49
    % chance of some sleet or snow
  • 10-20 mm of sleet/snow expected<20
    mm of sleet/snow expected
  • -3°C wind chill-3
    °C wind chill
  • Moderate breeze of 24 kph from the West24
    kph wind from W

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

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