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Forecast - Environment Canada
Observed at: Thunder Bay Airport
Date: Thursday February 21, 2019 at 09:00 EST
Mostly Cloudy
Mostly Cloudy 		Temp.: -8.4 °C
Wind Chill: -13
Wind: SW 8 km/h
Humidity: 87 %
Dew point: -10.2 °C
Pressure: 101.4 kPa
Tendency: rising
Visibility: 32.2 km 		Sunrise: 07:54
Sunset: 18:27
Normals:
Max -4°C Min -15°C
Yesterday
  Max: -4.8 °C
  Min: -24.1 °C
  Rainfall: 3.9 mm
 Extended Forecast - Environment Canada
Thursday
A few flurries
A few flurries
Max: -2°C
 Friday
A mix of sun and cloud
A mix of sun and cloud
Max: -1°C
 Saturday
Periods of snow
Periods of snow
Max: -2°C
 Sunday
Periods of snow
Periods of snow
Max: -3°C
 Monday
Sunny
Sunny
Max: -12°C
 Tuesday
Sunny
Sunny
Max: -11°C
 Wednesday
Sunny
Sunny
Max: -9°C
Thursday night
Chance of flurries (40%)
Chance of flurries
Min: -12°C
 Friday night
Chance of flurries (60%)
Chance of flurries
Min: -10°C
 Saturday night
Periods of snow
Periods of snow
Min: -6°C
 Sunday night
Clear
Clear
Min: -24°C
 Monday night
Clear
Clear
Min: -26°C
 Tuesday night
Clear
Clear
Min: -23°C
  

Forecast

Thunder Bay, ON (Issued: Thursday February 21, 2019 at 05:30 EST)

Today
Flurries. Wind up to 15 km/h. High minus 2. Wind chill minus 13 in the morning and minus 7 in the afternoon. UV index 1 or low.
Tonight
Partly cloudy with 40 percent chance of flurries. Wind up to 15 km/h. Low minus 12. Wind chill minus 7 in the evening and minus 15 overnight.
Friday
A mix of sun and cloud. Becoming cloudy late in the afternoon. Wind up to 15 km/h. High minus 1. Wind chill minus 15 in the morning and minus 3 in the afternoon. UV index 2 or low.
Friday night
Cloudy with 60 percent chance of flurries. Low minus 10.
Saturday
Periods of snow. High minus 2.
Saturday night
Periods of snow. Low minus 6.
Sunday
Periods of snow. High minus 3.
Sunday night
Clear. Low minus 24.
Monday
Sunny. High minus 12.
Monday night
Clear. Low minus 26.
Tuesday
Sunny. High minus 11.
Tuesday night
Clear. Low minus 23.
Wednesday
Sunny. High minus 9.
Averages and extremes
Highest temperature(1942-2004)7.2 °C1943
Lowest temperature(1942-2004)-31.9 °C1986
Average high-4.6 °C 
Average low-17.3 °C 
Average-11.0 °C 
Greatest rainfall(1942-2003)1.3 mm1975
Greatest snowfall(1942-2003)11.9 cm1979
Greatest precipitation(1942-2004)10.9 mm1979
Most snow on the ground(1955-2003)107.0 cm1956
Monthly frequency of precipitationn/a 

24 Hour Forecast - Thunder Bay, ON

Date/Time
(EST)		 Temp.
(°C)
Weather Conditions
LOP †		 Wind
(km/h)		 Wind
Chill
21 February 2019
10:00 -7 A few flurries (80%)  A few flurries High NW 15 -13
11:00 -6 A few flurries (80%)  A few flurries High NW 15 -12
12:00 -6 A few flurries (80%)  A few flurries High NW 15 -11
13:00 -5 A few flurries (80%)  A few flurries High NW 15 -11
14:00 -4 A few flurries (80%)  A few flurries High NW 15 -9
15:00 -3 A few flurries (80%)  A few flurries High NW 15 -8
16:00 -2 A few flurries (80%)  A few flurries High NW 15 -7
17:00 -2 A few flurries (80%)  A few flurries High NW 15 -7
18:00 -3 Chance of flurries (40%)  Chance of flurries Low W 10 -7
19:00 -3 Chance of flurries (40%)  Chance of flurries Low W 10 -7
20:00 -4 Chance of flurries (40%)  Chance of flurries Low W 10 -8
21:00 -5 Chance of flurries (40%)  Chance of flurries Low W 10 -9
22:00 -6 Chance of flurries (40%)  Chance of flurries Low VR 5 -8
23:00 -7 Chance of flurries (40%)  Chance of flurries Low VR 5 -9
22 February 2019
00:00 -7 Chance of flurries (40%)  Chance of flurries Low VR 5 -10
01:00 -8 Chance of flurries (40%)  Chance of flurries Low VR 5 -11
02:00 -9 Chance of flurries (40%)  Chance of flurries Low VR 5 -12
03:00 -10 Chance of flurries (40%)  Chance of flurries Low VR 5 -13
04:00 -11 Chance of flurries (40%)  Chance of flurries Low VR 5 -14
05:00 -11 Chance of flurries (40%)  Chance of flurries Low VR 5 -14
06:00 -12 Partly cloudy (20%)  Partly cloudy Low VR 5 -15
07:00 -12 Partly cloudy (20%)  Partly cloudy Low VR 5 -15
08:00 -11 A mix of sun and cloud (20%)  A mix of sun and cloud Low VR 5 -14
09:00 -9 A mix of sun and cloud (20%)  A mix of sun and cloud Low VR 5 -12
 
† Likelihood of Precipitation (LOP) as described in the public forecast as a chance of measurable precipitation for a period of time.
  Nil: 0%
  Low: 40% or below
  Medium: 60% or 70%
  High: Above 70%

Environment Canada