Current Conditions
Thunder Bay, Ontario
Wind
W 3 mph6 km/h
Humidity
71%
Cloud Cover
70%
As of Wednesday, September 2, 2026 at 8:20 PM EDT
Today's Outlook
Night
Mostly cloudy, with a low around 63°F17°C. Light wind from the NW around 4 mph6 km/h.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Partly Cloudy | High 70°F21°C | Low 63°F17°C | Precip 0 in0.1 mm3% | Cloud 76% | Wind W 5 mph7 km/h | Wednesday: Overcast and warm, with a high of 70°F21°C. Light wind from the W around 5 mph9 km/h. Wednesday Night: Mostly cloudy, with a low around 63°F17°C. Light wind from the NW around 4 mph6 km/h. | |
| Partly Cloudy | High 69°F20°C | Low 58°F14°C | Precip 0 in0.1 mm3% | Cloud 53% | Wind ENE 5 mph8 km/h | Thursday: Mostly cloudy and warm, with a high of 69°F20°C and morning low of 58°F14°C. Light wind from the E around 5 mph8 km/h. Thursday Night: Partly cloudy, with a low around 58°F14°C. Light wind from the NE around 4 mph7 km/h. | |
| Showers | High 67°F19°C | Low 59°F15°C | Precip 0.08 in2.1 mm35% | Cloud 55% | Wind E 8 mph12 km/h | Friday: Mostly cloudy and mild, with a high of 67°F19°C and morning low of 60°F15°C. Breezy from the E at 9 to 10 mph15 to 16 km/h. 35% chance of showers throughout the day. Friday Night: Mostly cloudy, with a low around 59°F15°C. Breezy from the E at 6 to 7 mph9 to 12 km/h. 12% chance of drizzle before dawn. | |
| Clear | High 69°F20°C | Low 59°F15°C | Precip 0 in0.1 mm3% | Cloud 40% | Wind E 5 mph9 km/h | Saturday: Partly cloudy and warm, with a high of 69°F20°C and morning low of 59°F15°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. Saturday Night: Partly cloudy, with a low around 59°F15°C. Light wind from the E around 5 mph8 km/h. | |
| Drizzle | High 69°F21°C | Low 59°F15°C | Precip 0.05 in1.2 mm17% | Cloud 72% | Wind ESE 5 mph8 km/h | Sunday: Overcast and warm, with a high of 69°F21°C and morning low of 59°F15°C. Light wind from the ESE around 5 mph8 km/h. 11% chance of drizzle in the afternoon. Sunday Night: Mostly cloudy, with a low around 59°F15°C. Light wind from the E around 4 mph7 km/h. 17% chance of drizzle in the evening. | |
| Light Rain | High 65°F18°C | Low 60°F16°C | Precip 0.12 in3 mm30% | Cloud 91% | Wind E 9 mph14 km/h | Monday: Overcast and mild, with a high of 65°F18°C. Breezy from the E at 9 to 10 mph15 to 17 km/h. 25% chance of drizzle throughout the day. Monday Night: Overcast, with a low around 61°F16°C. Breezy from the E at 8 to 11 mph13 to 17 km/h. 30% chance of light rain throughout the night. | |
| Rain | High 68°F20°C | Low 62°F17°C | Precip 0.58 in14.7 mm74% | Cloud 89% | Wind S 11 mph18 km/h | Tuesday: Overcast and warm, with a high of 68°F20°C and morning low of 63°F17°C. Breezy from the S at 12 mph19 km/h. 74% chance of rain throughout the day. Tuesday Night: Overcast, with a low around 62°F17°C. Breezy from the S at 11 to 12 mph17 to 19 km/h. 60% chance of rain throughout the night. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| WednesdaySep 2 | 70°F21°C | 63°F17°C | 0 in0.1 mm· 3% | 76% | Partly Cloudy | W 5 mph7 km/h | |
DayOvercast and warm, with a high of 70°F21°C. Light wind from the W around 5 mph9 km/h. NightMostly cloudy, with a low around 63°F17°C. Light wind from the NW around 4 mph6 km/h. | |||||||
| ThursdaySep 3 | 69°F20°C | 58°F14°C | 0 in0.1 mm· 3% | 53% | Partly Cloudy | ENE 5 mph8 km/h | |
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 58°F14°C. Light wind from the E around 5 mph8 km/h. NightPartly cloudy, with a low around 58°F14°C. Light wind from the NE around 4 mph7 km/h. | |||||||
| FridaySep 4 | 67°F19°C | 59°F15°C | 0.08 in2.1 mm· 35% | 55% | Showers | E 8 mph12 km/h | |
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 60°F15°C. Breezy from the E at 9 to 10 mph15 to 16 km/h. 35% chance of showers throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the E at 6 to 7 mph9 to 12 km/h. 12% chance of drizzle before dawn. | |||||||
| SaturdaySep 5 | 69°F20°C | 59°F15°C | 0 in0.1 mm· 3% | 40% | Clear | E 5 mph9 km/h | |
DayPartly cloudy and warm, with a high of 69°F20°C and morning low of 59°F15°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the E around 5 mph8 km/h. | |||||||
| SundaySep 6 | 69°F21°C | 59°F15°C | 0.05 in1.2 mm· 17% | 72% | Drizzle | ESE 5 mph8 km/h | |
DayOvercast and warm, with a high of 69°F21°C and morning low of 59°F15°C. Light wind from the ESE around 5 mph8 km/h. 11% chance of drizzle in the afternoon. NightMostly cloudy, with a low around 59°F15°C. Light wind from the E around 4 mph7 km/h. 17% chance of drizzle in the evening. | |||||||
| MondaySep 7 | 65°F18°C | 60°F16°C | 0.12 in3 mm· 30% | 91% | Light Rain | E 9 mph14 km/h | |
DayOvercast and mild, with a high of 65°F18°C. Breezy from the E at 9 to 10 mph15 to 17 km/h. 25% chance of drizzle throughout the day. NightOvercast, with a low around 61°F16°C. Breezy from the E at 8 to 11 mph13 to 17 km/h. 30% chance of light rain throughout the night. | |||||||
| TuesdaySep 8 | 68°F20°C | 62°F17°C | 0.58 in14.7 mm· 74% | 89% | Rain | S 11 mph18 km/h | |
DayOvercast and warm, with a high of 68°F20°C and morning low of 63°F17°C. Breezy from the S at 12 mph19 km/h. 74% chance of rain throughout the day. NightOvercast, with a low around 62°F17°C. Breezy from the S at 11 to 12 mph17 to 19 km/h. 60% chance of rain throughout the night. | |||||||
| WednesdaySep 9 | 71°F22°C | 63°F17°C | 0.1 in2.6 mm· 28% | 57% | Showers | W 11 mph18 km/h | |
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 63°F17°C. Breezy from the W at 12 to 13 mph19 to 21 km/h. 14% chance of drizzle throughout the day. NightMostly cloudy, with a low around 63°F17°C. Breezy from the W at 10 to 11 mph16 to 17 km/h. 28% chance of showers throughout the night. | |||||||
| ThursdaySep 10 | 67°F19°C | 58°F14°C | 0.09 in2.3 mm· 14% | 59% | Drizzle | WNW 9 mph15 km/h | |
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 58°F14°C. Breezy from the WNW at 9 to 10 mph15 to 15 km/h. 14% chance of drizzle throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the WNW at 9 to 10 mph14 to 15 km/h. 11% chance of drizzle throughout the night. | |||||||
| FridaySep 11 | 66°F19°C | 56°F13°C | 0.17 in4.4 mm· 21% | 62% | Showers | SSW 9 mph15 km/h | |
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 56°F13°C. Breezy from the SSW at 10 to 11 mph16 to 17 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 21% chance of showers throughout the night. | |||||||
| SaturdaySep 12 | 66°F19°C | 58°F14°C | 0.18 in4.5 mm· 26% | 69% | Showers | SW 10 mph16 km/h | |
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 58°F14°C. Breezy from the SW at 11 mph17 km/h. 24% chance of light rain throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the SW at 10 mph15 km/h. 26% chance of showers throughout the night. | |||||||
| SundaySep 13 | 66°F19°C | 57°F14°C | 0.14 in3.5 mm· 27% | 62% | Showers | SW 10 mph16 km/h | |
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 57°F14°C. Breezy from the SW at 10 to 11 mph17 to 18 km/h. 27% chance of showers throughout the day. NightMostly cloudy, with a low around 58°F15°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 22% chance of showers throughout the night. | |||||||
| MondaySep 14 | 66°F19°C | 56°F13°C | 0.16 in4 mm· 23% | 58% | Showers | WSW 10 mph16 km/h | |
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 56°F13°C. Breezy from the WSW at 11 mph17 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the WSW at 9 to 10 mph15 to 15 km/h. 23% chance of showers throughout the night. | |||||||
| TuesdaySep 15 | 65°F18°C | 55°F13°C | 0.15 in3.7 mm· 21% | 56% | Showers | WSW 10 mph16 km/h | |
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 55°F13°C. Breezy from the WSW at 10 to 11 mph17 to 18 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 56°F13°C. Breezy from the WSW at 10 mph15 km/h. 20% chance of showers throughout the night. | |||||||
| WednesdaySep 16 | 64°F18°C | 55°F13°C | 0.15 in3.8 mm· 22% | 56% | Showers | W 11 mph17 km/h | |
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 55°F13°C. Breezy from the W at 11 to 12 mph18 to 20 km/h. 22% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 56°F13°C. Breezy from the W at 10 mph16 km/h. 18% chance of showers throughout the night. | |||||||
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Coordinates: 48.3820°N, 89.2502°W·Elevation: 188m·Timezone: America/Toronto·Population: 108,843