Thunder Bay weather live forecast

Today's maximum temperature in Thunder Bay is expected to be -12°C. Select a day from the live weather forecast for Thunder Bay, Ontario, Canada for more weather parameters.

5-day weather forecast updated at 04:01 on Saturday 7th February 2026 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 7th February 2026

Expect broken clouds in Thunder Bay, Ontario with a maximum temperature of -12°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 12 kph from the north-west.

  • -12°C maximum temperature-12
    °C maximum temperature
  • -21°C minimum temperature-21
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -18°C wind chill-18
    °C wind chill
  • Light breeze of 12 kph from the North-West12
    kph wind from NW

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Thunder Bay weather for Sunday 8th February 2026

Expect overcast with light snow in Thunder Bay, Ontario with a maximum temperature of -6°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 cm of snow expected with 25% chance of some snow and a light breeze of 12 kph from the south.

  • -6°C maximum temperature-6
    °C maximum temperature
  • -13°C minimum temperature-13
    °C minimum temperature
  • Overcast with light snow
    overcast with light snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 25% chance of some snow25
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -11°C wind chill-11
    °C wind chill
  • Light breeze of 12 kph from the South12
    kph wind from S

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Thunder Bay weather for Monday 9th February 2026

Expect overcast skies in Thunder Bay, Ontario with a maximum temperature of 1°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south.

  • 1°C maximum temperature1
    °C maximum temperature
  • -6°C minimum temperature-6
    °C minimum temperature
  • Overcast skies
    overcast skies
  • No hours of bright sunshine0
    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 14 kph from the South14
    kph wind from S

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Thunder Bay weather for Tuesday 10th February 2026

Expect broken clouds in Thunder Bay, Ontario with a maximum temperature of 0°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 14 kph from the north-west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -6°C minimum temperature-6
    °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
  • -4°C wind chill-4
    °C wind chill
  • Gentle breeze of 14 kph from the North-West14
    kph wind from NW

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Thunder Bay weather for Wednesday 11th February 2026

Expect broken clouds in Thunder Bay, Ontario with a maximum temperature of -3°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 11 kph from the north-west.

  • -3°C maximum temperature-3
    °C maximum temperature
  • -8°C minimum temperature-8
    °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
  • Light breeze of 11 kph from the North-West11
    kph wind from NW

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

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