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Waterdown, Ontario

74°F
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Waterdown, Ontario Weather
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Winter Center

Today Hourly

Daily

Radar MinuteCast Monthly Air Quality Health & Activities
Heat Warning

June 23 - August 6

Mon 6/23

95° /76°
1%
Abundant sunshine and hot; danger of dehydration and heatstroke if outside for extended periods of time
alerts

Heat Warning

5:31 AM Monday - 6:00 AM Wednesday

RealFeel®102°

RealFeel Shade™96°

Max UV Index10 (Very High)

WindWSW 10 mph

Tue 6/24

92° /68°
40%
Hot with partial sunshine; a thunderstorm in spots in the afternoon; thunderstorms can bring localized damaging wind gusts
alerts

Heat Warning

5:31 AM Monday - 6:00 AM Wednesday

RealFeel®99°

RealFeel Shade™93°

Max UV Index10 (Very High)

WindW 10 mph

Wed 6/25

76° /63°
49%
Mainly cloudy and cooler; an afternoon thunderstorm in spots

RealFeel®80°

RealFeel Shade™76°

Max UV Index4 (Moderate)

WindNE 6 mph

Thu 6/26

68° /59°
88%
Considerable cloudiness with a couple of showers and a thunderstorm

RealFeel®68°

RealFeel Shade™66°

Max UV Index2 (Low)

WindE 8 mph

Fri 6/27

75° /64°
80%
Mostly cloudy and humid with a thunderstorm

RealFeel®75°

RealFeel Shade™74°

Max UV Index3 (Moderate)

WindSSW 8 mph

Sat 6/28

75° /63°
4%
Low clouds and humid

RealFeel®75°

RealFeel Shade™75°

Max UV Index2 (Low)

WindW 9 mph

Sun 6/29

77° /65°
41%
A shower in places in the morning; otherwise, mostly cloudy and humid

RealFeel®82°

RealFeel Shade™76°

Max UV Index8 (Very High)

WindW 10 mph

Mon 6/30

79° /64°
77%
Cloudy; rain and a thunderstorm in the morning followed by a couple of thunderstorms in the afternoon

RealFeel®83°

RealFeel Shade™82°

Max UV Index2 (Low)

WindESE 4 mph

Tue 7/1

78° /62°
61%
Clouds and sun; a thunderstorm in parts of the area in the morning followed by a couple of showers in the afternoon

RealFeel®84°

RealFeel Shade™75°

Max UV Index10 (Very High)

WindW 6 mph

Wed 7/2

77° /59°
3%
Mostly sunny

RealFeel®79°

RealFeel Shade™74°

Max UV Index10 (Very High)

WindWNW 9 mph

Thu 7/3

78° /62°
1%
Mostly sunny

RealFeel®83°

RealFeel Shade™76°

Max UV Index10 (Very High)

WindWNW 6 mph

Fri 7/4

77° /62°
35%
Considerable cloudiness with a couple of showers and thunderstorms possible

RealFeel®76°

RealFeel Shade™74°

Max UV Index8 (Very High)

WindSW 12 mph

Sat 7/5

76° /60°
40%
Intervals of clouds and sunshine with widely separated thunderstorms

RealFeel®79°

RealFeel Shade™74°

Max UV Index9 (Very High)

WindSW 8 mph

Sun 7/6

77° /57°
20%
Mostly sunny

RealFeel®84°

RealFeel Shade™80°

Max UV Index10 (Very High)

WindNE 8 mph

Mon 7/7

73° /55°
5%
Plenty of sunshine

RealFeel®80°

RealFeel Shade™72°

Max UV Index10 (Very High)

WindESE 1 mph

Tue 7/8

75° /58°
25%
Increasing cloudiness

RealFeel®76°

RealFeel Shade™75°

Max UV Index7 (High)

WindWNW 4 mph

Wed 7/9

79° /61°
20%
After a cloudy start, sun returns

RealFeel®86°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindWNW 4 mph

Thu 7/10

81° /62°
65%
Humid with variable cloudiness; a couple of showers and a thunderstorm in the afternoon

RealFeel®86°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindSSW 8 mph

Fri 7/11

78° /61°
10%
Mostly sunny and humid

RealFeel®86°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindWSW 6 mph

Sat 7/12

82° /63°
64%
Humid with partial sunshine; a couple of showers and a thunderstorm in the afternoon

RealFeel®89°

RealFeel Shade™86°

Max UV Index10 (Very High)

WindSW 10 mph

Sun 7/13

82° /61°
20%
Clouds to start, then sunshine returns and humid

RealFeel®88°

RealFeel Shade™81°

Max UV Index10 (Very High)

WindNW 7 mph

Mon 7/14

78° /61°
20%
Partly sunny and less humid

RealFeel®82°

RealFeel Shade™76°

Max UV Index10 (Very High)

WindNNE 7 mph

Tue 7/15

75° /60°
76%
A thick cloud cover; a passing morning shower, then afternoon rain

RealFeel®69°

RealFeel Shade™69°

Max UV Index2 (Low)

WindENE 9 mph

Wed 7/16

74° /59°
25%
Clouds giving way to a brightening sky

RealFeel®75°

RealFeel Shade™71°

Max UV Index4 (Moderate)

WindNE 9 mph

Thu 7/17

75° /60°
20%
Increasing cloudiness

RealFeel®79°

RealFeel Shade™73°

Max UV Index10 (Very High)

WindENE 8 mph

Fri 7/18

75° /62°
55%
Cloudy and humid; a little rain in the morning followed by areas of drizzle in the afternoon

RealFeel®79°

RealFeel Shade™79°

Max UV Index2 (Low)

WindE 6 mph

Sat 7/19

79° /62°
60%
Cloudy and humid with a couple of showers and a thunderstorm

RealFeel®84°

RealFeel Shade™84°

Max UV Index2 (Low)

WindSSE 5 mph

Sun 7/20

78° /63°
57%
A couple of showers in the morning; otherwise, humid with clouds and sunshine

RealFeel®85°

RealFeel Shade™83°

Max UV Index5 (Moderate)

WindWSW 6 mph

Mon 7/21

82° /63°
25%
Cloudy and humid

RealFeel®88°

RealFeel Shade™88°

Max UV Index3 (Moderate)

WindSW 7 mph

Tue 7/22

81° /62°
58%
A couple of morning showers; otherwise, humid with plenty of clouds

RealFeel®87°

RealFeel Shade™87°

Max UV Index2 (Low)

WindW 8 mph

Wed 7/23

79° /62°
5%
Less humid with plenty of sunshine

RealFeel®84°

RealFeel Shade™77°

Max UV Index9 (Very High)

WindNW 6 mph

Thu 7/24

77° /61°
65%
Humid with more clouds than sun; a couple of showers and a thunderstorm in the afternoon

RealFeel®83°

RealFeel Shade™78°

Max UV Index6 (High)

WindWNW 2 mph

Fri 7/25

76° /61°
41%
Partial sunshine with a thundershower in spots in the afternoon

RealFeel®76°

RealFeel Shade™73°

Max UV Index6 (High)

WindN 9 mph

Sat 7/26

75° /59°
10%
Brilliant sunshine

RealFeel®79°

RealFeel Shade™73°

Max UV Index9 (Very High)

WindNNE 7 mph

Sun 7/27

75° /58°
5%
Plenty of sunshine

RealFeel®82°

RealFeel Shade™73°

Max UV Index9 (Very High)

WindNE 4 mph

Mon 7/28

76° /59°
25%
Increasing cloudiness

RealFeel®82°

RealFeel Shade™76°

Max UV Index9 (Very High)

WindNW 2 mph

Tue 7/29

78° /61°
20%
Sunny to partly cloudy

RealFeel®82°

RealFeel Shade™77°

Max UV Index9 (Very High)

WindW 8 mph

Wed 7/30

79° /58°
20%
Mostly sunny and less humid

RealFeel®83°

RealFeel Shade™76°

Max UV Index9 (Very High)

WindNNW 6 mph

Thu 7/31

74° /57°
75%
Overcast with rain arriving in the afternoon

RealFeel®74°

RealFeel Shade™70°

Max UV Index4 (Moderate)

WindSSE 5 mph

Fri 8/1

75° /58°
25%
Mostly cloudy

RealFeel®73°

RealFeel Shade™72°

Max UV Index3 (Moderate)

WindWNW 14 mph

Sat 8/2

75° /55°
56%
Mostly sunny with a passing shower in the afternoon

RealFeel®79°

RealFeel Shade™72°

Max UV Index9 (Very High)

WindNNW 7 mph

Sun 8/3

74° /56°
10%
Mostly sunny

RealFeel®78°

RealFeel Shade™72°

Max UV Index9 (Very High)

WindNNW 7 mph

Mon 8/4

80° /57°
2%
Mostly sunny

RealFeel®85°

RealFeel Shade™80°

Max UV Index9 (Very High)

WindNW 2 mph

Tue 8/5

82° /62°
1%
Brilliant sunshine

RealFeel®87°

RealFeel Shade™83°

Max UV Index8 (Very High)

WindNE 2 mph

Wed 8/6

82° /55°
2%
Sunny much of the time

RealFeel®83°

RealFeel Shade™79°

Max UV Index8 (Very High)

WindSW 9 mph

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Weather Near Waterdown:

  • Hamilton, Ontario
  • Mississauga Valley, Ontario
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More
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