Current Conditions

Thunder Bay, Ontario

64°F18°C
Light Rain

Wind

S 12 mph19 km/h

Humidity

92%

Cloud Cover

99%

As of Tuesday, September 8, 2026 at 4:33 PM EDT

Today's Outlook

Day

Overcast and mild, with a high of 64°F18°C. Breezy from the S at 12 to 13 mph20 to 22 km/h. 88% chance of light rain throughout the day.

Night

Mostly cloudy, with a low around 66°F19°C. Breezy from the SSW at 12 to 13 mph20 to 21 km/h. 48% chance of drizzle throughout the night.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Light RainHigh 67°F19°CLow 63°F17°CPrecip 0.11 in2.8 mm88%Cloud 80%Wind SSW 12 mph20 km/hTuesday: Overcast and mild, with a high of 64°F18°C. Breezy from the S at 12 to 13 mph20 to 22 km/h. 88% chance of light rain throughout the day. Tuesday Night: Mostly cloudy, with a low around 66°F19°C. Breezy from the SSW at 12 to 13 mph20 to 21 km/h. 48% chance of drizzle throughout the night.
ClearHigh 66°F19°CLow 59°F15°CPrecip 0 in0.1 mm2%Cloud 39%Wind W 14 mph23 km/hWednesday: Mostly cloudy and mild, with a high of 66°F19°C. Windy from the W at 17 to 19 mph27 to 30 km/h. Wednesday Night: Mostly clear, with a low around 59°F15°C. Breezy from the W at 12 to 13 mph19 to 21 km/h.
ClearHigh 67°F20°CLow 51°F11°CPrecip 0 in0.1 mm2%Cloud 37%Wind WSW 7 mph12 km/hThursday: Partly cloudy and mild, with a high of 67°F20°C and morning low of 51°F11°C. Breezy from the WSW at 7 to 10 mph11 to 16 km/h. Dry air. Thursday Night: Partly cloudy, with a low around 53°F12°C. Breezy from the WSW at 8 to 9 mph13 to 15 km/h.
ShowersHigh 74°F23°CLow 61°F16°CPrecip 0.12 in3.1 mm55%Cloud 63%Wind SSW 13 mph20 km/hFriday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 62°F17°C. Breezy from the SSW at 14 to 15 mph23 to 24 km/h. Friday Night: Mostly cloudy, with a low around 61°F16°C. Breezy from the SSW at 11 to 12 mph18 to 20 km/h. 55% chance of light rain in the evening.
RainHigh 67°F19°CLow 58°F14°CPrecip 0.27 in6.9 mm79%Cloud 58%Wind W 12 mph19 km/hSaturday: Partly cloudy and mild, with a high of 67°F19°C and morning low of 60°F16°C. Breezy from the WNW at 12 to 14 mph20 to 23 km/h. 46% chance of showers in the morning. Saturday Night: Mostly cloudy, with a low around 58°F14°C. Breezy from the W at 12 to 13 mph19 to 20 km/h. 79% chance of rain overnight.
Partly CloudyHigh 62°F16°CLow 51°F11°CPrecip 0.01 in0.2 mm4%Cloud 47%Wind WNW 10 mph17 km/hSunday: Mostly cloudy and mild, with a high of 62°F16°C and morning low of 51°F11°C. Breezy from the WNW at 12 mph19 km/h. Dry air. Sunday Night: Partly cloudy, with a low around 52°F11°C. Breezy from the WNW at 9 to 11 mph15 to 18 km/h.
ShowersHigh 60°F16°CLow 49°F9°CFeels 46°F8°CPrecip 0.25 in6.3 mm64%Cloud 64%Wind SSE 10 mph16 km/hMonday: Mostly cloudy and mild, with a high of 60°F16°C and morning low of 49°F9°C. Breezy from the SSE at 10 to 13 mph16 to 21 km/h. 37% chance of light rain throughout the day. Dry air. Monday Night: Mostly cloudy, with a low around 49°F9°C. Breezy from the S at 9 to 13 mph15 to 20 km/h. 64% chance of showers in the evening.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
TuesdaySep 867°F19°C63°F17°C0.11 in2.8 mm· 88%80%Light RainSSW 12 mph20 km/h
WednesdaySep 966°F19°C59°F15°C0 in0.1 mm· 2%39%ClearW 14 mph23 km/h
ThursdaySep 1067°F20°C51°F11°C0 in0.1 mm· 2%37%ClearWSW 7 mph12 km/h
FridaySep 1174°F23°C61°F16°C0.12 in3.1 mm· 55%63%ShowersSSW 13 mph20 km/h
SaturdaySep 1267°F19°C58°F14°C0.27 in6.9 mm· 79%58%RainW 12 mph19 km/h
SundaySep 1362°F16°C51°F11°C0.01 in0.2 mm· 4%47%Partly CloudyWNW 10 mph17 km/h
MondaySep 1460°F16°C49°F9°C
Feels 46°F8°C
0.25 in6.3 mm· 64%64%ShowersSSE 10 mph16 km/h
TuesdaySep 1564°F18°C57°F14°C0.28 in7.1 mm· 63%65%ShowersWSW 13 mph20 km/h
WednesdaySep 1661°F16°C52°F11°C0.05 in1.3 mm· 19%58%DrizzleWSW 9 mph14 km/h
ThursdaySep 1760°F16°C55°F13°C0.3 in7.6 mm· 37%77%Light RainWSW 10 mph16 km/h
FridaySep 1858°F15°C51°F10°C0.2 in5.1 mm· 27%65%ShowersNW 11 mph17 km/h
SaturdaySep 1958°F15°C50°F10°C
Feels 46°F8°C
0.09 in2.4 mm· 17%59%DrizzleNW 10 mph16 km/h
SundaySep 2058°F14°C47°F9°C
Feels 43°F6°C
0.06 in1.5 mm· 20%55%DrizzleNW 9 mph15 km/h
MondaySep 2158°F14°C46°F8°C
Feels 42°F6°C
0.06 in1.5 mm· 19%49%DrizzleWNW 9 mph14 km/h
TuesdaySep 2259°F15°C47°F9°C
Feels 43°F6°C
0.04 in1.1 mm· 10%50%DrizzleWSW 9 mph15 km/h

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About This Forecast

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Coordinates: 48.3820°N, 89.2502°W·Elevation: 188m·Timezone: America/Toronto·Population: 108,843