Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™

Thunder Bay, Ontario

51°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Thunder Bay

Ontario

51°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Thunder Bay, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today Hourly

10-Day

Radar MinuteCast® Monthly Air Quality Health & Activities

Unlock extended 90-day forecasts

Activate Your Premium+ Subscription

Chevron right

August 6 - August 20

Thu 8/6

80° /58°
25%
Warm with periods of clouds and sunshine; breezy this afternoon

RealFeel®80°

RealFeel Shade™76°

Max UV Index6.0 (High)

WindS 12 mph

Fri 8/7

74° /55°
55%
Sun and some clouds with a thunderstorm around in the afternoon

RealFeel®79°

RealFeel Shade™71°

Max UV Index7.0 (High)

WindSSW 9 mph

Total Hours of Precipitation0.5

Total Hours of Rain0.5

Sat 8/8

74° /54°
55%
Sun giving way to increasing clouds with a thunderstorm in spots in the afternoon

RealFeel®77°

RealFeel Shade™71°

Max UV Index7.0 (High)

WindWNW 8 mph

Total Hours of Precipitation0.5

Total Hours of Rain0.5

Sun 8/9

75° /52°
2%
Turning cloudy

RealFeel®80°

RealFeel Shade™73°

Max UV Index7.0 (High)

WindW 6 mph

Mon 8/10

73° /52°
55%
Breezy in the morning with a shower in spots; otherwise, cloudy

RealFeel®71°

RealFeel Shade™70°

Max UV Index2.0 (Low)

WindNE 12 mph

Total Hours of Precipitation1

Total Hours of Rain1

Tue 8/11

76° /52°
55%
Partly sunny with a couple of showers

RealFeel®78°

RealFeel Shade™72°

Max UV Index5.0 (Moderate)

WindWNW 7 mph

Total Hours of Precipitation1.5

Total Hours of Rain1.5

Wed 8/12

73° /51°
55%
Partly sunny with a shower in spots

RealFeel®78°

RealFeel Shade™71°

Max UV Index6.0 (High)

WindWSW 5 mph

Total Hours of Precipitation1

Total Hours of Rain1

Thu 8/13

70° /54°
76%
Variably cloudy with showers

RealFeel®75°

RealFeel Shade™68°

Max UV Index4.0 (Moderate)

WindE 4 mph

Total Hours of Precipitation3.5

Total Hours of Rain3.5

Fri 8/14

72° /52°
1%
Intervals of clouds and sunshine

RealFeel®72°

RealFeel Shade™70°

Max UV Index4.0 (Moderate)

WindN 7 mph

Sat 8/15

70° /54°
2%
Mostly cloudy

RealFeel®75°

RealFeel Shade™69°

Max UV Index6.0 (High)

WindESE 5 mph

Sun 8/16

70° /52°
3%
Sun and some clouds

RealFeel®72°

RealFeel Shade™68°

Max UV Index3.0 (Moderate)

WindESE 6 mph

Mon 8/17

72° /54°
49%
Peeks of sunshine with a shower in spots in the afternoon

RealFeel®74°

RealFeel Shade™70°

Max UV Index6.0 (High)

WindWSW 5 mph

Total Hours of Precipitation1

Total Hours of Rain1

Tue 8/18

73° /53°
2%
Mostly sunny

RealFeel®74°

RealFeel Shade™70°

Max UV Index6.0 (High)

WindWNW 8 mph

Wed 8/19

72° /50°
60%
Partly sunny with a passing shower in the afternoon

RealFeel®72°

RealFeel Shade™70°

Max UV Index6.0 (High)

WindNNE 6 mph

Total Hours of Precipitation0.5

Total Hours of Rain0.5

Thu 8/20

68° /55°
25%
Cloudy

RealFeel®68°

RealFeel Shade™67°

Max UV Index2.0 (Low)

WindSSW 6 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather News

Spokane wildfires destroy more than 700 structures

13 hours ago

Severe Weather

A tornado hit the same house twice, and it's not unprecedented

11 hours ago

Weather Forecasts

Flash flood threat returns as storms drench central, eastern U.S.

11 hours ago

Hurricane

Will there be any Atlantic tropical storms in August?

1 day ago

Weather News

Man charged with arson in Spokane wildfire

1 day ago

More Stories

Featured Stories

Weather News

Dangerous wildfire smoke causes poor air quality in Northwest

16 hours ago

Weather News

Southwest cities prepare for looming Colorado River cuts

1 day ago

Recreation

This newly discovered spider looks like it's smiling

12 hours ago

Weather News

Volcano reaches ‘critical explosive phase’ as hundreds evacuated

16 hours ago

Health

Cases of rare tick-borne disease ‘rabbit fever’ suspected in New York

1 day ago

World North America Canada Ontario Thunder Bay

Weather Near Thunder Bay:

  • Duluth, MN
  • Marquette, MI
  • Superior, WI
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...