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Ottawa, Ontario

71°F
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Ottawa, Ontario Weather
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Winter Center
Today Hourly

Daily

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2
Heat Warning

July 16 - August 29

Wed 7/16

92° /71°
2%
Sunny and hot; possible danger of dehydration and heatstroke while doing strenuous activities
alerts

Heat Warning

12:32 AM Wednesday - 11:00 PM Thursday

RealFeel®96°

RealFeel Shade™90°

Max UV Index9 (Very High)

WindSSW 9 mph

Thu 7/17

85° /54°
88%
Variable cloudiness with a couple of showers and a thunderstorm; humid
alerts

Heat Warning

12:32 AM Wednesday - 11:00 PM Thursday

RealFeel®93°

RealFeel Shade™87°

Max UV Index7 (High)

WindSSW 10 mph

Fri 7/18

78° /57°
0%
Sunny to partly cloudy and not as warm with lower humidity

RealFeel®82°

RealFeel Shade™75°

Max UV Index9 (Very High)

WindWNW 7 mph

Sat 7/19

80° /58°
8%
Low humidity with increasing cloudiness

RealFeel®84°

RealFeel Shade™77°

Max UV Index8 (Very High)

WindW 7 mph

Sun 7/20

76° /56°
25%
Partly sunny

RealFeel®82°

RealFeel Shade™73°

Max UV Index9 (Very High)

WindNW 8 mph

Mon 7/21

78° /60°
0%
Hazy; air quality will be very unhealthy

RealFeel®81°

RealFeel Shade™76°

Max UV Index7 (High)

WindNNW 6 mph

Tue 7/22

83° /65°
1%
Mostly sunny; air quality will be very unhealthy

RealFeel®90°

RealFeel Shade™81°

Max UV Index9 (Very High)

WindE 8 mph

Wed 7/23

82° /67°
8%
Humid with partial sunshine; air quality will be very unhealthy

RealFeel®89°

RealFeel Shade™82°

Max UV Index9 (Very High)

WindS 7 mph

Thu 7/24

84° /65°
41%
Clouds and sun with a strong thunderstorm in spots; humid

RealFeel®87°

RealFeel Shade™82°

Max UV Index4 (Moderate)

WindWSW 6 mph

Fri 7/25

81° /64°
0%
Less humid with plenty of sun

RealFeel®86°

RealFeel Shade™78°

Max UV Index9 (Very High)

WindWSW 7 mph

Sat 7/26

78° /62°
11%
Partly sunny

RealFeel®81°

RealFeel Shade™75°

Max UV Index9 (Very High)

WindW 8 mph

Sun 7/27

79° /59°
55%
A couple of showers in the morning; otherwise, intervals of clouds and sunshine

RealFeel®80°

RealFeel Shade™76°

Max UV Index4 (Moderate)

WindNW 6 mph

Mon 7/28

80° /62°
4%
Partly sunny

RealFeel®84°

RealFeel Shade™77°

Max UV Index8 (Very High)

WindW 6 mph

Tue 7/29

81° /67°
60%
Mostly cloudy with a couple of showers and a thunderstorm

RealFeel®77°

RealFeel Shade™75°

Max UV Index2 (Low)

WindSSE 13 mph

Wed 7/30

78° /62°
25%
After a cloudy start, sun returns

RealFeel®87°

RealFeel Shade™77°

Max UV Index8 (Very High)

WindW 4 mph

Thu 7/31

82° /63°
10%
Mostly sunny

RealFeel®89°

RealFeel Shade™82°

Max UV Index8 (Very High)

WindESE 4 mph

Fri 8/1

83° /62°
20%
Mostly sunny and humid

RealFeel®88°

RealFeel Shade™81°

Max UV Index8 (Very High)

WindSSW 8 mph

Sat 8/2

83° /55°
20%
Partly sunny and less humid

RealFeel®84°

RealFeel Shade™80°

Max UV Index8 (Very High)

WindNNW 10 mph

Sun 8/3

74° /54°
25%
Increasing clouds

RealFeel®78°

RealFeel Shade™71°

Max UV Index8 (Very High)

WindNW 7 mph

Mon 8/4

73° /54°
10%
Sunny

RealFeel®81°

RealFeel Shade™71°

Max UV Index8 (Very High)

WindNNW 4 mph

Tue 8/5

74° /55°
5%
Plenty of sun

RealFeel®80°

RealFeel Shade™73°

Max UV Index8 (Very High)

WindNNW 4 mph

Wed 8/6

77° /56°
5%
Plenty of sun

RealFeel®83°

RealFeel Shade™76°

Max UV Index8 (Very High)

WindNNW 4 mph

Thu 8/7

80° /60°
20%
Partly sunny

RealFeel®87°

RealFeel Shade™78°

Max UV Index8 (Very High)

WindS 1 mph

Fri 8/8

81° /62°
25%
Mostly cloudy

RealFeel®81°

RealFeel Shade™80°

Max UV Index3 (Moderate)

WindSSE 4 mph

Sat 8/9

78° /62°
20%
Mostly sunny

RealFeel®81°

RealFeel Shade™75°

Max UV Index8 (Very High)

WindNNE 8 mph

Sun 8/10

80° /61°
25%
Mostly cloudy

RealFeel®79°

RealFeel Shade™78°

Max UV Index3 (Moderate)

WindNE 6 mph

Mon 8/11

80° /62°
25%
Humid with clouds and sunshine

RealFeel®84°

RealFeel Shade™81°

Max UV Index5 (Moderate)

WindNE 2 mph

Tue 8/12

81° /61°
10%
Mostly sunny

RealFeel®89°

RealFeel Shade™79°

Max UV Index7 (High)

WindSSW 4 mph

Wed 8/13

82° /62°
20%
Mostly sunny and humid

RealFeel®87°

RealFeel Shade™80°

Max UV Index7 (High)

WindSSW 7 mph

Thu 8/14

81° /63°
10%
Mostly sunny and humid

RealFeel®89°

RealFeel Shade™82°

Max UV Index7 (High)

WindSSW 7 mph

Fri 8/15

81° /62°
65%
Cloudy and humid; a couple of afternoon showers and a thunderstorm

RealFeel®84°

RealFeel Shade™84°

Max UV Index2 (Low)

WindSW 8 mph

Sat 8/16

80° /61°
40%
Mainly cloudy and humid; a thunderstorm in spots in the afternoon

RealFeel®82°

RealFeel Shade™79°

Max UV Index6 (High)

WindW 8 mph

Sun 8/17

77° /57°
5%
Less humid with plenty of sunshine

RealFeel®80°

RealFeel Shade™75°

Max UV Index7 (High)

WindNW 7 mph

Mon 8/18

74° /58°
20%
Mostly sunny

RealFeel®80°

RealFeel Shade™72°

Max UV Index7 (High)

WindSW 4 mph

Tue 8/19

80° /60°
20%
Brilliant sunshine

RealFeel®84°

RealFeel Shade™78°

Max UV Index7 (High)

WindSSW 5 mph

Wed 8/20

81° /62°
5%
Sunny and humid

RealFeel®87°

RealFeel Shade™81°

Max UV Index7 (High)

WindSSW 6 mph

Thu 8/21

81° /62°
62%
Cloudy and humid; a couple of showers and a thunderstorm in the afternoon

RealFeel®86°

RealFeel Shade™86°

Max UV Index3 (Moderate)

WindSSW 4 mph

Fri 8/22

80° /61°
10%
Sunshine and humid

RealFeel®90°

RealFeel Shade™82°

Max UV Index6 (High)

WindNNW 4 mph

Sat 8/23

81° /60°
25%
Mostly cloudy and less humid

RealFeel®79°

RealFeel Shade™79°

Max UV Index2 (Low)

WindN 6 mph

Sun 8/24

78° /60°
73%
Cloudy; a passing shower in the morning, then afternoon rain

RealFeel®74°

RealFeel Shade™74°

Max UV Index2 (Low)

WindESE 5 mph

Mon 8/25

80° /59°
56%
Cloudy and humid; a little rain in the morning followed by a couple of showers in the afternoon

RealFeel®79°

RealFeel Shade™79°

Max UV Index2 (Low)

WindNNE 7 mph

Tue 8/26

74° /60°
25%
Still cloudy and less humid

RealFeel®72°

RealFeel Shade™72°

Max UV Index2 (Low)

WindENE 8 mph

Wed 8/27

76° /59°
25%
Sunshine and some clouds

RealFeel®82°

RealFeel Shade™76°

Max UV Index6 (High)

WindESE 4 mph

Thu 8/28

77° /60°
25%
Mostly cloudy

RealFeel®79°

RealFeel Shade™78°

Max UV Index3 (Moderate)

WindW 4 mph

Fri 8/29

70° /51°
56%
A bit of morning rain; otherwise, mostly cloudy

RealFeel®68°

RealFeel Shade™68°

Max UV Index2 (Low)

WindNW 12 mph

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iPhone App Android App See all Apps & Downloads
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More
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