Thunder Bay weather live forecast

Today's maximum temperature in Thunder Bay is expected to be 7°C. Select a day from the live weather forecast for Thunder Bay, Ontario, Canada for more weather parameters.

  • Saturday
    15th Nov
    Sunshine and showers (2-5 mm of rainfall expected)
  • Sunday
    16th Nov
    Scattered clouds
  • Monday
    17th Nov
    Clear skies
  • Tuesday
    18th Nov
    Scattered clouds
  • Wednesday
    19th Nov
    Cloudy with sleet or snow (0-2 mm of rainfall expected)

5-day weather forecast updated at 04:00 on Saturday 15th November 2025 GMT

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

Thunder Bay weather forecast by day

Below are the detailed weather forecasts for Thunder Bay for the next 5 days.

Thunder Bay weather for Saturday 15th November 2025

Expect sunshine and showers in Thunder Bay, Ontario with a maximum temperature of 7°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 10% chance of some rain and a moderate breeze of 25 kph from the north-west.

  • 7°C maximum temperature7
    °C maximum temperature
  • -1°C minimum temperature-1
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 10% chance of some rain10
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 3°C wind chill3
    °C wind chill
  • Moderate breeze of 25 kph from the North-West25
    kph wind from NW

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Thunder Bay weather for Sunday 16th November 2025

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of 2°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the north-west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -4°C minimum temperature-4
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • -3°C wind chill-3
    °C wind chill
  • Moderate breeze of 23 kph from the North-West23
    kph wind from NW

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Thunder Bay weather for Monday 17th November 2025

Expect clear skies in Thunder Bay, Ontario with a maximum temperature of 1°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north-west.

  • 1°C maximum temperature1
    °C maximum temperature
  • -6°C minimum temperature-6
    °C minimum temperature
  • Clear skies
    clear skies
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • -3°C wind chill-3
    °C wind chill
  • Gentle breeze of 15 kph from the North-West15
    kph wind from NW

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Thunder Bay weather for Tuesday 18th November 2025

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of 2°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north.

  • 2°C maximum temperature2
    °C maximum temperature
  • -8°C minimum temperature-8
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • -1°C wind chill-1
    °C wind chill
  • Light breeze of 10 kph from the North10
    kph wind from N

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Thunder Bay weather for Wednesday 19th November 2025

Expect cloudy with sleet or snow in Thunder Bay, Ontario with a maximum temperature of 4°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of sleet/snow expected with 25% chance of some sleet or snow and a light breeze of 10 kph from the south.

  • 4°C maximum temperature4
    °C maximum temperature
  • -4°C minimum temperature-4
    °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)
  • 25% chance of some sleet or snow25
    % chance of some sleet or snow
  • 0-2 mm of sleet/snow expected<2
    mm of sleet/snow expected
  • 1°C wind chill1
    °C wind chill
  • Light breeze of 10 kph from the South10
    kph wind from S

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

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