Now

62°

14%

7 mph

03:00

61°

16%

6 mph

04:00

61°

19%

6 mph

05:00

61°

25%

6 mph

06:00

62°

28%

6 mph

07:00

64°

18%

6 mph

08:00

66°

14%

5 mph

09:00

69°

12%

4 mph

10:00

67°

49%

3 mph

11:00

67°

0.02 in

4 mph

12:00

67°

53%

4 mph

13:00

67°

0.03 in

4 mph

14:00

67°

48%

3 mph

15:00

68°

54%

3 mph

16:00

67°

41%

3 mph

17:00

68°

38%

2 mph

18:00

69°

32%

5 mph

19:00

71°

30%

7 mph

20:00

70°

31%

5 mph

21:00

68°

28%

6 mph

22:00

67°

27%

7 mph

23:00

67°

29%

9 mph

00:00

67°

33%

11 mph

01:00

67°

28%

11 mph

10-day forecast

Updated 2:20 AM

Sun · Today · 16 Aug Partly cloudy

71° 61° 0.09 in

Mon · Tomorrow · 17 Aug Sunny

77° 57° 7%

Tuesday · 18 Aug Sunny

83° 53° 3%

Wednesday · 19 Aug Sunny

76° 56° 0.06 in

Thursday · 20 Aug Sunny

80° 55° 4%

Friday · 21 Aug Partly cloudy

69° 56° 0.03 in

Saturday · 22 Aug Showers

64° 59° 0.16 in

Sunday · 23 Aug Sunny

80° 58° 8%

Monday · 24 Aug Sunny

86° 63° 6%

Tuesday · 25 Aug Sunny

80° 59° 7%

Details & indices

Wind

7 mph E

Gusts 14 mph

Humidity

86%

Dew point 57°

Pressure

30.03 inHg

Rising

UV index

7 — High

High today

Air Quality

Good

AQI 27 · US EPA

Allergy

Moderate

Mugwort

Visibility

6 mi

Clear view

Allergy — Waterloo

🌿 Conditions right now

View all →

Birch

None

Grass

Moderate

Oak

None

Alder

None

Hazel

None

Mugwort

Moderate

Ragweed

None

Sun & moon

Sunrise6:28 AM

Sunset8:24 PM

Length of day13h 56m

Moonrise11:00 AM

Moonset10:01 PM

Moon phase🌒 Waxing Crescent · 15%

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

Poor

Line-drying weather

Grilling

Fair

Fire up the grill

Running

Poor

Lace up outside

Patio

Fair

Dinner outdoors

Nearby places in {{REGION}}

🌤️

Data sources · Sunday, August 16

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: 2:20 AM

Weather in Waterloo

Waterloo's outlook: warmest day near 86° (Monday), coldest night about 53° (Tuesday). Roughly 0.34 in of rain falls over the period, with Saturday the most likely wet day (88%). No watches or warnings are active for the area right now. Right now Waterloo is about 9° cooler than nearby 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

Waterloo, ON Weather

Weather map — Waterloo

Today · Sun 8/16

Overnight · Sun 8/16

Tomorrow · Mon 8/17

7-day trend

10-day forecast

Details & indices

🌿 Conditions right now

Sun & moon

Water temps nearby

Daily planner