🌤️ New York, NY 🌤️ Los Angeles, CA Chicago, IL 75° 🌤️ Houston, TX 🌤️ Miami, FL Phoenix, AZ 100° 🌤️ Seattle, WA 🌤️ Denver, CO 🌤️ Toronto, ON 🌤️ Vancouver, BC
WeatherLive › Ontario › Thunder Bay

Thunder Bay, ON Weather

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherThunder Bay · 5:32 PM EDT
70° | 57°
66°F
Feels like 62°
Partly cloudy
WindE 7 mph · Gusts 10 mph
Precip49% · 0.03 in
Humidity61% · Dew point 52°
UV index3 Low
Air Quality27 Good
Pressure30.06 inHg
Visibility6 mi
Sunrise / Sunset6:51 AM · 9:11 PM · 14h 20m

Weather map — Thunder Bay

Full radar →
Now
66°
10%
7 mph
18:00
60°
19%
6 mph
19:00
60°
18%
6 mph
20:00
61°
25%
4 mph
21:00
58°
39%
3 mph
22:00
58°
44%
3 mph
23:00
58°
33%
2 mph
00:00
57°
58%
0 mph
01:00
57°
33%
1 mph
02:00
57°
33%
2 mph
03:00
57°
31%
4 mph
04:00
58°
31%
5 mph
05:00
59°
30%
6 mph
06:00
59°
30%
9 mph
07:00
60°
28%
12 mph
08:00
61°
21%
11 mph
09:00
63°
10%
9 mph
10:00
67°
7%
11 mph
11:00
69°
6%
11 mph
12:00
70°
4%
12 mph
13:00
71°
3%
13 mph
14:00
71°
2%
12 mph
15:00
73°
2%
12 mph
16:00
74°
2%
12 mph

Today · Sat 8/15

High 70°
49% / 0.03 in

Mostly cloudy. Winds E at 9 mph.

Tonight · Sat 8/15

Low 57°
39% / 0.01 in

Partly cloudy. Winds E at 3 mph.

Tomorrow · Sun 8/16

74° | 57°
25% / 0.01 in

Sunny. Winds N at 13 mph.

7-day trend

Thunder Bay · temperature + precipitation

10-day forecast

Updated 5:32 PM

Details & indices

Wind
7 mph E
Gusts 10 mph
Humidity
61%
Dew point 52°
Pressure
30.06 inHg
Rising
UV index
3 — Low
High today
Air Quality
Good
AQI 27 · US EPA
Allergy
None detected
—
Visibility
6 mi
Clear view
Allergy — Thunder Bay

🌿 Conditions right now

View all →
Birch
None
Grass
None
Oak
None
Alder
None
Hazel
None
Mugwort
None
Ragweed
None

Sun & moon

Sunrise6:51 AM
Sunset9:11 PM
Length of day14h 20m
Moonrise10:28 AM
Moonset10:12 PM
Moon phase🌒 Waxing Crescent · 12%
Next full moonAug 28 Sturgeon Moon
Latitude48.3820°N
Longitude-89.2502°E

Water temps nearby

View all →
No beaches within 50 miles
🌦️Dry now — rain moving in around 6:00 PM (28 min)
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Fair
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in {{REGION}}
🌤️
Toronto
—
— 🌤️
Ottawa
—
— 🌤️
Mississauga
—
— 🌤️
Brampton
—
— 🌤️
Hamilton
—
— 🌤️
London
—
—
Data sources · Saturday, August 15
Where the Thunder Bay forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 48.3820°N, -89.2502°.
NBM + global weather models
Updated: 5:32 PM
Weather in Thunder Bay
Over the next 10 days Thunder Bay tops out around 88° (Sunday) and dips to 46° on the coolest night (Wednesday). About 0.16 in of precipitation is expected in total; the most likely wet day is Tuesday (57% chance). Expect a blustery spell — gusts near 27 mph on Sunday. No watches or warnings are active for the area right now. Longer view: four full seasons with serious winter and real summer heat.
Thunder Bay, ON · Elev 617 ft · 48.38°N, 89.25°W · Ontario · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 5:32 PM