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Forecast - Environment Canada
Observed at: Thunder Bay Airport
Date: Monday April 22, 2019 at 02:00 EDT
Cloudy
Cloudy 		Temp.: 5.5 °C
Wind: ENE 4 km/h
Humidity: 76 %
Dew point: 1.6 °C
Pressure: 102.3 kPa
Tendency: rising
Visibility: 24.1 km 		Sunrise: 06:55
Sunset: 20:57
Normals:
Max 11°C Min -2°C
Yesterday
  Max: 13.9 °C
  Min: 1.3 °C
  Rainfall: 0.0 mm
 Extended Forecast - Environment Canada
  Monday
Chance of showers (60%)
Chance of showers
Max: 11°C
 Tuesday
Sunny
Sunny
Max: 14°C
 Wednesday
A mix of sun and cloud
A mix of sun and cloud
Max: 13°C
 Thursday
Chance of showers (60%)
Chance of showers
Max: 17°C
 Friday
Sunny
Sunny
Max: 13°C
 Saturday
Sunny
Sunny
Max: 8°C
Sunday night
Partly cloudy
Partly cloudy
Min: 2°C
 Monday night
Chance of showers (60%)
Chance of showers
Min: 0°C
 Tuesday night
Clear
Clear
Min: -4°C
 Wednesday night
Chance of showers (60%)
Chance of showers
Min: 5°C
 Thursday night
Clear
Clear
Min: 0°C
 Friday night
Clear
Clear
Min: -5°C

Forecast

Thunder Bay, ON (Issued: Sunday April 21, 2019 at 16:00 EDT)

Tonight
Partly cloudy. Low plus 2.
Monday
A mix of sun and cloud. 60 percent chance of showers late in the afternoon. High 11. UV index 6 or high.
Monday night
Mainly cloudy with 60 percent chance of showers in the evening. Clearing near midnight. Low zero.
Tuesday
Sunny. High 14.
Tuesday night
Clear. Low minus 4.
Wednesday
Increasing cloudiness. High 13.
Wednesday night
Cloudy with 60 percent chance of showers. Low plus 5.
Thursday
A mix of sun and cloud with 60 percent chance of showers. High 17.
Thursday night
Clear. Low zero.
Friday
Sunny. High 13.
Friday night
Clear. Low minus 5.
Saturday
Sunny. High 8.
Averages and extremes
Highest temperature(1942-2004)26.6 °C1980
Lowest temperature(1942-2004)-9.0 °C1986
Average high10.8 °C 
Average low-1.8 °C 
Average4.5 °C 
Greatest rainfall(1942-2003)7.4 mm1947
Greatest snowfall(1942-2003)16.8 cm1972
Greatest precipitation(1942-2004)43.0 mm2001
Most snow on the ground(1955-2004)5.0 cm1970
Monthly frequency of precipitationn/a 

24 Hour Forecast - Thunder Bay, ON

Date/Time
(EDT)		 Temp.
(°C)
Weather Conditions
LOP †		 Wind
(km/h)
22 April 2019
03:00 3 Partly cloudy (10%)  Partly cloudy Low VR 5
04:00 2 Partly cloudy (10%)  Partly cloudy Low VR 5
05:00 2 Partly cloudy (10%)  Partly cloudy Low VR 5
06:00 3 Partly cloudy (10%)  Partly cloudy Low VR 5
07:00 4 A mix of sun and cloud (10%)  A mix of sun and cloud Low VR 5
08:00 5 A mix of sun and cloud (10%)  A mix of sun and cloud Low VR 5
09:00 6 A mix of sun and cloud (10%)  A mix of sun and cloud Low VR 5
10:00 6 A mix of sun and cloud (10%)  A mix of sun and cloud Low VR 5
11:00 7 A mix of sun and cloud (10%)  A mix of sun and cloud Low VR 5
12:00 8 A mix of sun and cloud (10%)  A mix of sun and cloud Low VR 5
13:00 8 A mix of sun and cloud (10%)  A mix of sun and cloud Low VR 5
14:00 9 A mix of sun and cloud (10%)  A mix of sun and cloud Low VR 5
15:00 10 Chance of showers (60%)  Chance of showers Medium NE 10
16:00 10 Chance of showers (60%)  Chance of showers Medium NE 10
17:00 11 Chance of showers (60%)  Chance of showers Medium NE 10
18:00 10 Chance of showers (60%)  Chance of showers Medium NE 10
19:00 10 Chance of showers (60%)  Chance of showers Medium NE 10
20:00 9 Chance of showers (60%)  Chance of showers Medium NE 10
21:00 8 Chance of showers (60%)  Chance of showers Medium NE 10
22:00 6 Mainly cloudy (10%)  Mainly cloudy Low NE 10
23:00 5 Mainly cloudy (10%)  Mainly cloudy Low NE 10
23 April 2019
00:00 4 Partly cloudy (10%)  Partly cloudy Low NE 10
01:00 3 A few clouds (0%)  A few clouds Nil NE 10
02:00 2 A few clouds (0%)  A few clouds Nil NE 10
 
† 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