Forecast - Environment Canada
Observed at: Thunder Bay Airport
Date: Monday October 22, 2018 at 18:00 EDT
Mostly Cloudy
Mostly Cloudy
Temp.: 9.3 °C
Wind: NW 18 gust 39 km/h
Humidity: 57 %
Dew point: 1.1 °C
Pressure: 101.3 kPa
Tendency: rising
Visibility: 32.2 km
Sunrise: 08:27
Sunset: 18:56
Normals:
Max 8°C Min -2°C
Yesterday
  Max: 7.2 °C
  Min: -5.1 °C
  Rainfall: 0.0 mm

 Extended Forecast - Environment Canada
  Tuesday
Chance of flurries or rain showers (30%)
Chance of flurries or rain showers
Max: 5°C
Wednesday
Sunny
Sunny
Max: 6°C
Thursday
Chance of showers (30%)
Chance of showers
Max: 6°C
Friday
Chance of showers (60%)
Chance of showers
Max: 6°C
Saturday
Chance of showers (30%)
Chance of showers
Max: 6°C
Sunday
Chance of rain showers or flurries (30%)
Chance of rain showers or flurries
Max: 6°C
Monday night
A few rain showers or flurries
A few rain showers or flurries
Min: 2°C
Tuesday night
Chance of flurries or rain showers (30%)
Chance of flurries or rain showers
Min: -5°C
Wednesday night
Clear
Clear
Min: -3°C
Thursday night
Chance of showers (60%)
Chance of showers
Min: 0°C
Friday night
Chance of showers (30%)
Chance of showers
Min: 1°C
Saturday night
Cloudy periods
Cloudy periods
Min: 0°C

Forecast

Thunder Bay, ON (Issued: Monday October 22, 2018 at 16:00 EDT)

Tonight
Mainly cloudy. A few rain showers beginning early this evening and ending near midnight then 30 percent chance of flurries or rain showers overnight. Wind northwest 20 km/h gusting to 40. Low plus 2.
Tuesday
Mainly cloudy with 30 percent chance of flurries or rain showers. Wind northwest 20 km/h. High plus 5. UV index 2 or low.
Tuesday night
Cloudy with 30 percent chance of flurries or rain showers early in the evening then partly cloudy. Wind northwest 20 km/h becoming light early in the evening. Low minus 5. Wind chill minus 3 in the evening and minus 9 overnight.
Wednesday
Sunny. High 6.
Wednesday night
Clear. Low minus 3.
Thursday
A mix of sun and cloud with 30 percent chance of showers. High 6.
Thursday night
Cloudy with 60 percent chance of showers. Low zero.
Friday
Cloudy with 60 percent chance of showers. High 6.
Friday night
Cloudy periods with 30 percent chance of showers. Low plus 1.
Saturday
A mix of sun and cloud with 30 percent chance of showers. High 6.
Saturday night
Cloudy periods. Low zero.
Sunday
A mix of sun and cloud with 30 percent chance of rain showers or flurries. High 6.
Averages and extremes
Highest temperature(1941-2004)23.9 °C1947
Lowest temperature(1941-2004)-10.0 °C1969
Average high8.9 °C 
Average low-1.6 °C 
Average3.7 °C 
Greatest rainfall(1941-2003)11.2 mm1979
Greatest snowfall(1941-2003)3.9 cm1981
Greatest precipitation(1941-2004)13.8 mm1979
Most snow on the ground(1955-2004)2.0 cm1981
Monthly frequency of precipitationn/a 

24 Hour Forecast - Thunder Bay, ON

Date/Time
(EDT)
Temp.
(°C)

Weather Conditions

LOP †
Wind
(km/h)
22 October 2018
19:00 6 A few showers (80%)  A few showers High NW 20 gust 40
20:00 5 A few showers (80%)  A few showers High NW 20 gust 40
21:00 4 A few showers (80%)  A few showers High NW 20
22:00 4 A few showers (80%)  A few showers High NW 20
23:00 3 A few showers (80%)  A few showers High NW 20
23 October 2018
00:00 3 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
01:00 2 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
02:00 2 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
03:00 2 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
04:00 2 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
05:00 2 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
06:00 2 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
07:00 2 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
08:00 2 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
09:00 2 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
10:00 2 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
11:00 2 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
12:00 3 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
13:00 3 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
14:00 4 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
15:00 4 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
16:00 5 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
17:00 5 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
18:00 4 Chance of flurries or rain showers (30%)  Chance of flurries or rain showers Low NW 20
 
† 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