Current Conditions

Thunder Bay, Ontario

73°F23°C
Showers

Wind

WSW 12 mph19 km/h

Humidity

54%

Cloud Cover

49%

As of Thursday, July 23, 2026 at 4:50 PM EDT

Today's Outlook

Day

Partly cloudy and warm, with a high of 73°F23°C. Breezy from the WSW at 12 mph19 km/h. 24% chance of drizzle in the afternoon.

Night

Partly cloudy, with a low around 64°F18°C. Breezy from the WSW at 7 to 8 mph12 to 12 km/h. 57% chance of showers throughout the night.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ThursdayJul 23ShowersHigh 73°F23°CLow 64°F18°CPrecip 0.05 in1.2 mm57%Cloud 40%Wind WSW 10 mph15 km/hThursday: Partly cloudy and warm, with a high of 73°F23°C. Breezy from the WSW at 12 mph19 km/h. 24% chance of drizzle in the afternoon. Thursday Night: Partly cloudy, with a low around 64°F18°C. Breezy from the WSW at 7 to 8 mph12 to 12 km/h. 57% chance of showers throughout the night.
FridayJul 24DrizzleHigh 71°F22°CLow 60°F16°CPrecip 0.01 in0.2 mm17%Cloud 43%Wind SW 12 mph19 km/hFriday: Partly cloudy and warm, with a high of 71°F22°C and morning low of 61°F16°C. Breezy from the SSW at 13 to 15 mph20 to 24 km/h. Friday Night: Partly cloudy, with a low around 60°F16°C. Breezy from the SW at 11 to 13 mph17 to 20 km/h. 17% chance of drizzle overnight.
SaturdayJul 25RainHigh 77°F25°CLow 64°F18°CPrecip 0.26 in6.6 mm85%Cloud 49%Wind WSW 8 mph13 km/hSaturday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 64°F18°C. Breezy from the W at 8 to 9 mph13 to 15 km/h. 39% chance of showers in the morning. Saturday Night: Mostly cloudy, with a low around 64°F18°C. Breezy from the SW at 8 to 12 mph14 to 20 km/h. 85% chance of rain overnight.
SundayJul 26DrizzleHigh 68°F20°CLow 58°F14°CPrecip 0.06 in1.6 mm18%Cloud 63%Wind ESE 5 mph8 km/hSunday: Mostly cloudy and warm, with a high of 68°F20°C and morning low of 58°F15°C. Light wind from the SE around 5 mph8 km/h. 17% chance of drizzle throughout the day. Sunday Night: Mostly cloudy, with a low around 58°F14°C. Light wind from the E around 5 mph7 km/h. 18% chance of drizzle in the evening.
MondayJul 27ShowersHigh 70°F21°CLow 59°F15°CPrecip 0.21 in5.3 mm41%Cloud 61%Wind NE 6 mph9 km/hMonday: Mostly cloudy and warm, with a high of 70°F21°C and morning low of 60°F15°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h. 41% chance of showers throughout the day. Monday Night: Mostly cloudy, with a low around 59°F15°C. Light wind from the NNE around 5 mph8 km/h. 26% chance of showers throughout the night.
TuesdayJul 28ClearHigh 70°F21°CLow 58°F15°CPrecip 0.02 in0.6 mm7%Cloud 34%Wind NNW 6 mph9 km/hTuesday: Partly cloudy and warm, with a high of 70°F21°C and morning low of 59°F15°C. Light wind from the ENE around 6 mph9 km/h. Tuesday Night: Partly cloudy, with a low around 58°F15°C. Light wind from the NW around 6 mph9 km/h.
WednesdayJul 29DrizzleHigh 72°F22°CLow 57°F14°CPrecip 0.05 in1.2 mm11%Cloud 33%Wind SW 6 mph9 km/hWednesday: Partly cloudy and warm, with a high of 72°F22°C and morning low of 59°F15°C. Breezy from the SSW at 6 to 7 mph9 to 11 km/h. Wednesday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the SW around 5 mph8 km/h. 11% chance of drizzle throughout the night.

15-Day Forecast

Day High (°F) Low (°F) Precip (mm) Cloud Cover (%) Condition Wind (mph)

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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