Thunder Bay weather live forecast

Today's maximum temperature in Thunder Bay is expected to be 18°F. 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 Monday 2nd 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 Monday 2nd February 2026

Expect clear skies with flurries of snow in Thunder Bay, Ontario with a maximum temperature of 18°F, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0-2 cm of snow expected with 3% chance of some snow and a gentle breeze of 10 mph from the north-west.

  • 18°F maximum temperature18
    °F maximum temperature
  • -0°F minimum temperature0
    °F minimum temperature
  • Clear skies with flurries of snow
    clear skies with flurries of snow
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 3% chance of some snow3
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • 7°F wind chill7
    °F wind chill
  • Gentle breeze of 10 mph from the North-West10
    mph wind from NW

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Thunder Bay weather for Tuesday 3rd February 2026

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of 10°F, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 6 mph from the north-west.

  • 10°F maximum temperature10
    °F maximum temperature
  • -6°F minimum temperature-6
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • 1°F wind chill1
    °F wind chill
  • Light breeze of 6 mph from the North-West6
    mph wind from NW

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Thunder Bay weather for Wednesday 4th February 2026

Expect broken clouds in Thunder Bay, Ontario with a maximum temperature of 19°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and little or no wind of 4 mph from the north-west.

  • 19°F maximum temperature19
    °F maximum temperature
  • -4°F minimum temperature-4
    °F 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
  • 14°F wind chill14
    °F wind chill
  • Little or no wind of 4 mph from the North-West4
    mph wind from NW

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Thunder Bay weather for Thursday 5th February 2026

Expect overcast skies in Thunder Bay, Ontario with a maximum temperature of 30°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 10 mph from the west.

  • 30°F maximum temperature30
    °F maximum temperature
  • 7°F minimum temperature7
    °F minimum temperature
  • Overcast skies
    overcast skies
  • 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
  • 21°F wind chill21
    °F wind chill
  • Gentle breeze of 10 mph from the West10
    mph wind from W

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Thunder Bay weather for Friday 6th February 2026

Expect broken clouds in Thunder Bay, Ontario with a maximum temperature of 19°F, maximum UV of 1 (Low) and 7 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 12 mph from the north.

  • 19°F maximum temperature19
    °F maximum temperature
  • -0°F minimum temperature0
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • 9°F wind chill9
    °F wind chill
  • Gentle breeze of 12 mph from the North12
    mph wind from N

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Metric (°C)  |  Imperial (°F)

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