New York, NY 77° 🌤️ Los Angeles, CA 🌤️ Chicago, IL 🌤️ Houston, TX 🌤️ Miami, FL 🌤️ Phoenix, AZ 🌤️ Seattle, WA Denver, CO 87° 🌤️ Toronto, ON 🌤️ Vancouver, BC
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Waterloo, ON Weather

Current WeatherWaterloo · 2:57 PM EDT
72° | 55°
69°F
Feels like 68°
Mostly cloudy
WindNW 9 mph · Gusts 10 mph
Precip18% · –
Humidity71% · Dew point 60°
UV index7 High
Air Quality35 Good
Pressure30.06 inHg
Visibility6 mi
Sunrise / Sunset6:38 AM · 8:10 PM · 13h 32m

Weather map — Waterloo

Full radar →
Now
69°
19%
9 mph
15:00
71°
17%
9 mph
16:00
72°
15%
9 mph
17:00
72°
8%
10 mph
18:00
70°
11%
9 mph
19:00
67°
8%
8 mph
20:00
67°
10%
8 mph
21:00
64°
23%
7 mph
22:00
62°
28%
5 mph
23:00
61°
28%
3 mph
00:00
61°
27%
2 mph
01:00
59°
12%
2 mph
02:00
59°
12%
2 mph
03:00
59°
12%
3 mph
04:00
59°
12%
4 mph
05:00
58°
17%
4 mph
06:00
58°
30%
4 mph
07:00
58°
14%
6 mph
08:00
63°
14%
5 mph
09:00
63°
21%
7 mph
10:00
67°
7%
10 mph
11:00
71°
7%
12 mph
12:00
73°
5%
11 mph
13:00
76°
10%
12 mph

Today · Tue 8/25

High 72°
18% / –

Mostly cloudy. Winds NW at 13 mph.

Tonight · Tue 8/25

Low 58°
23% / –

Mostly cloudy. Winds NW at 7 mph.

Tomorrow · Wed 8/26

78° | 58°
9% / –

Sunny. Winds SW at 15 mph.

7-day trend

Waterloo · temperature + precipitation

10-day forecast

Updated 2:57 PM

Details & indices

Wind
9 mph NW
Gusts 10 mph
Humidity
71%
Dew point 60°
Pressure
30.06 inHg
Rising
UV index
7 — High
High today
Air Quality
Good
AQI 35 · US EPA
Allergy
Very high
Mugwort
Visibility
6 mi
Clear view
Allergy — Waterloo

🌿 Conditions right now

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

Sun & moon

Sunrise6:38 AM
Sunset8:10 PM
Length of day13h 32m
Moonrise7:09 PM
Moonset3:40 AM
Next full moonAug 28 Sturgeon Moon
Latitude43.4668°N
Longitude-80.5164°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
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
Partly cloudy
64°
🌤️
Mississauga
🌤️
Brampton
🌤️
Hamilton
🌤️
London
Data sources · Tuesday, August 25
Where the Waterloo 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: 43.4668°N, -80.5164°.
NBM + global weather models
Updated: 2:57 PM
Weather in Waterloo
Waterloo's outlook: warmest day near 82° (Sunday), coldest night about 49° (Thursday). Roughly 1.2 in of rain falls over the period, with Tuesday the most likely wet day (88%). Expect a blustery spell — gusts near 31 mph on Tuesday. No watches or warnings are active for the area right now. Right now Waterloo is running about 10° warmer than Toronto. Longer view: four full seasons with serious winter and real summer heat.
Waterloo, ON · Elev 1,066 ft · 43.47°N, 80.52°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: 2:57 PM