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Forecast - Environment Canada
Observed at: Thunder Bay Airport
Date: Sunday December 09, 2018 at 23:00 EST
Cloudy
Cloudy 		Temp.: -4.4 °C
Wind Chill: -7
Wind: WNW 6 km/h
Humidity: 85 %
Dew point: -6.6 °C
Pressure: 102.2 kPa
Tendency: falling
Visibility: 24.1 km 		Sunrise: 08:36
Sunset: 17:03
Normals:
Max -5°C Min -15°C
Yesterday
  Max: -0.8 °C
  Min: -18.1 °C
  Rainfall: 0.0 mm
 Extended Forecast - Environment Canada
  Monday
A mix of sun and cloud
A mix of sun and cloud
Max: -6°C
 Tuesday
Sunny
Sunny
Max: -4°C
 Wednesday
Chance of flurries (30%)
Chance of flurries
Max: -1°C
 Thursday
Cloudy
Cloudy
Max: -1°C
 Friday
Sunny
Sunny
Max: -1°C
 Saturday
A mix of sun and cloud
A mix of sun and cloud
Max: 0°C
Sunday night
A few clouds
A few clouds
Min: -15°C
 Monday night
Mainly cloudy
Mainly cloudy
Min: -13°C
 Tuesday night
Clear
Clear
Min: -6°C
 Wednesday night
Chance of flurries (40%)
Chance of flurries
Min: -4°C
 Thursday night
Cloudy periods
Cloudy periods
Min: -8°C
 Friday night
Clear
Clear
Min: -7°C

Forecast

Thunder Bay, ON (Issued: Sunday December 09, 2018 at 16:00 EST)

Tonight
Clearing early this evening. Wind up to 15 km/h. Low minus 15. Wind chill minus 7 in the evening and minus 19 overnight.
Monday
A mix of sun and cloud. Wind up to 15 km/h. High minus 6. Wind chill minus 19 in the morning and minus 8 in the afternoon. UV index 1 or low.
Monday night
Mainly cloudy. Wind up to 15 km/h. Low minus 13. Wind chill minus 11 in the evening and minus 19 overnight.
Tuesday
Sunny. High minus 4.
Tuesday night
Clear. Low minus 6.
Wednesday
Cloudy with 30 percent chance of flurries. High minus 1.
Wednesday night
Cloudy with 40 percent chance of flurries. Low minus 4.
Thursday
Cloudy. High minus 1.
Thursday night
Cloudy periods. Low minus 8.
Friday
Sunny. High minus 1.
Friday night
Clear. Low minus 7.
Saturday
A mix of sun and cloud. High zero.
Averages and extremes
Highest temperature(1941-2003)7.5 °C1990
Lowest temperature(1941-2003)-34.4 °C1976
Average high-5.0 °C 
Average low-15.3 °C 
Average-10.2 °C 
Greatest rainfall(1941-2002)0.3 mm1994
Greatest snowfall(1941-2002)17.3 cm1976
Greatest precipitation(1941-2003)15.7 mm1976
Most snow on the ground(1955-2002)46.0 cm1955
Monthly frequency of precipitationn/a 

24 Hour Forecast - Thunder Bay, ON

Date/Time
(EST)		 Temp.
(°C)
Weather Conditions
LOP †		 Wind
(km/h)		 Wind
Chill
10 December 2018
00:00 -14 A few clouds (0%)  A few clouds Nil VR 5 -17
01:00 -15 A few clouds (0%)  A few clouds Nil VR 5 -19
02:00 -15 A few clouds (0%)  A few clouds Nil VR 5 -19
03:00 -15 A few clouds (0%)  A few clouds Nil VR 5 -19
04:00 -15 Partly cloudy (0%)  Partly cloudy Nil VR 5 -19
05:00 -15 Partly cloudy (0%)  Partly cloudy Nil VR 5 -19
06:00 -15 Partly cloudy (0%)  Partly cloudy Nil VR 5 -19
07:00 -15 Partly cloudy (0%)  Partly cloudy Nil VR 5 -19
08:00 -15 Partly cloudy (0%)  Partly cloudy Nil VR 5 -19
09:00 -15 A mix of sun and cloud (0%)  A mix of sun and cloud Nil VR 5 -19
10:00 -15 A mix of sun and cloud (0%)  A mix of sun and cloud Nil VR 5 -19
11:00 -13 A mix of sun and cloud (0%)  A mix of sun and cloud Nil VR 5 -16
12:00 -10 A mix of sun and cloud (0%)  A mix of sun and cloud Nil VR 5 -13
13:00 -8 A mix of sun and cloud (0%)  A mix of sun and cloud Nil VR 5 -11
14:00 -7 A mix of sun and cloud (0%)  A mix of sun and cloud Nil VR 5 -10
15:00 -7 A mix of sun and cloud (0%)  A mix of sun and cloud Nil VR 5 -9
16:00 -6 A mix of sun and cloud (0%)  A mix of sun and cloud Nil VR 5 -8
17:00 -7 Partly cloudy (0%)  Partly cloudy Nil VR 5 -10
18:00 -9 Mainly cloudy (0%)  Mainly cloudy Nil VR 5 -11
19:00 -10 Mainly cloudy (0%)  Mainly cloudy Nil NW 10 -15
20:00 -10 Mainly cloudy (0%)  Mainly cloudy Nil NW 10 -15
21:00 -10 Mainly cloudy (0%)  Mainly cloudy Nil NW 10 -15
22:00 -10 Mainly cloudy (0%)  Mainly cloudy Nil NW 10 -15
23:00 -11 Mainly cloudy (0%)  Mainly cloudy Nil NW 10 -16
 
† 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