• Today

    Sep 1

    28°Lo 11°

    Warm; cloudy, then some sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      30°
    • UV
      4 - Moderate
    • Air Qual.
      Good
    more
  • Wed

    Sep 2

    25°Lo 12°

    A thunderstorm in spots

    Beneficial weather for asthma
    • Hi
      RealFeel
      28°
    • UV
      4 - Moderate
    • Air Qual.
      Good
    more
  • Thu

    Sep 3

    24°Lo 13°

    Sunshine and a few clouds

    Beneficial weather for asthma
    • Hi
      RealFeel
      25°
    • UV
      4 - Moderate
    • Air Qual.
      Good
  • Fri

    Sep 4

    25°Lo 15°

    A t-storm in the afternoon

    Neutral weather for asthma
    • Hi
      RealFeel
      27°
    • UV
      4 - Moderate
    • Air Qual.
      Good
    more
  • Sat

    Sep 5

    26°Lo 16°

    Partly sunny, warm and humid

    Neutral weather for asthma
    • Hi
      RealFeel
      28°
    • UV
      4 - Moderate
    • Air Qual.
      Good
    more
Next Previous
Hi 24° RealFeel® 25° Precipitation 0%

Day

N

E

S

W

  • ESE 9 km/h
  • Gusts: 17 km/h

Sunshine and a few clouds

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 0%
  • Precipitation: 0 mm
  • Rain: 0 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 13° RealFeel® 14° Precipitation 1%

Night

N

E

S

W

  • ESE 6 km/h
  • Gusts: 13 km/h

Mostly cloudy and mild

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 mm
  • Rain: 0 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Sep 3

more Historical Weather Data >
  Today Normal Record 9/3/2014
High 24° 19° 30° (2012) 22°
Low 13° -1° (1997)

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:17 AM with 13:18 of sunlight, then sets at 8:35 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:32 PM with 14:58 of moolight, then sets at 2:30 PM

Thunder Bay Weather Report

Oppressive Heat Adds Stress to Physical, Mental Health of Homeless People From US to Canada This Summer

September 1, 2015; 1:07 PM ET

Hot weather this summer from the central United States into Canada has put extra stress on some of the most vulnerable residents: the homeless. more >