• Today

    Sep 1

    26°Lo 11°

    Mostly sunny and very warm

    Excellent for an outdoor bbq
    • Precip
      3%
    • Hi
      RealFeel
      30°
    • Wind
      Speed
      7 k/h
    more
  • Wed

    Sep 2

    25°Lo 12°

    A thunderstorm in spots

    Very Good for an outdoor bbq
    • Precip
      40%
    • Hi
      RealFeel
      28°
    • Wind
      Speed
      6 k/h
    more
  • Thu

    Sep 3

    23°Lo 15°

    Periods of sun

    Excellent for an outdoor bbq
    • Precip
      2%
    • Hi
      RealFeel
      24°
    • Wind
      Speed
      9 k/h
  • Fri

    Sep 4

    26°Lo 16°

    A t-storm in the afternoon

    Very Good for an outdoor bbq
    • Precip
      55%
    • Hi
      RealFeel
      28°
    • Wind
      Speed
      11 k/h
    more
  • Sat

    Sep 5

    26°Lo 16°

    Cloudy and humid

    Poor for an outdoor bbq
    • Precip
      25%
    • Hi
      RealFeel
      28°
    • Wind
      Speed
      11 k/h
    more
Next Previous
Hi 23° RealFeel® 24° Precipitation 2%

Day

N

E

S

W

  • ESE 9 km/h
  • Gusts: 17 km/h

Warm and humid with intervals of clouds and sun

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 24%
  • Precipitation: 0 mm
  • Rain: 0 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 15° RealFeel® 15° Precipitation 5%

Night

N

E

S

W

  • ESE 4 km/h
  • Gusts: 11 km/h

Partly cloudy and mild

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • 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 23° 19° 30° (2012) 22°
Low 15° -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; 4:57 AM 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 >