THUNDER BAY CS, ONT
Weather station · 48.4°N 89.3°W · 199 m above sea level
WMO 71667Station data since 2003
Record high
28.0°C
in 2017
Record low
−2.0°C
in 2005
Average high
18.2°C
all years on record
24.9°C short of the record for 23 September
Today’s high 3.1°C against 28.0°C in 2017. A reading that beats it is flagged here automatically, once a second cycle confirms it.
All-time record high
39.0°C
- Date
- Monday, 13 July 2026
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- THUNDER BAY CS, ONT, Canada
- Position
- 48.37°N 89.33°W · 199 m
Highest highest in available records since 2003. Source: NOAA GHCN-Daily.
All-time record low
−39.6°C
- Date
- Tuesday, 31 December 2013
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- THUNDER BAY CS, ONT, Canada
- Position
- 48.37°N 89.33°W · 199 m
Highest and lowest lowest in available records since 2003. Source: NOAA GHCN-Daily.
Satellite preview of the station site
THUNDER BAY CS, ONT · 3.1°C
Map: Google Maps, opens in a new tab
See the place
Satellite view of the station and the ground around it
Records by month
Jan
9.4°
−39.5°
Feb
11.3°
−37.4°
Mar
23.8°
−33.7°
Apr
24.4°
−19.3°
May
30.9°
−8.4°
Jun
33.9°
−2.4°
Jul
39.0°
1.6°
Aug
32.8°
0.4°
Sep
34.1°
Recent days
| Day | High | At | Low | At |
|---|---|---|---|---|
| 2026-09-23 | 3.1°C | 06:00 UTC | 3.1°C | 06:00 UTC |
Nearby stations
- Thunder Bay IntlCA0 km
- Thunder Bay IntlCA0.6 km
- Welcome IslandCanada15.6 km
- Grand Marais MuniUS98.7 km
- Grand Marais BayUS102.9 km
- Upsala CA111.7 km
Data sources for this page
| Figure | Source | Type |
|---|---|---|
| Right now, today so far | NOAA Aviation Weather Center (METAR) and NOAA NWS WMO bulletins (SYNOP) | Measured, station |
| All-time, monthly and on-this-day records | NOAA NCEI Global Historical Climatology Network daily (GHCN-Daily), 2003 to 2026 | Measured, station |
| Nearby stations and distances | Computed from station positions in our own database | Calculated |