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Grimsby, Ontario

61°F
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Grimsby, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center
Today Hourly

Daily

 Radar MinuteCast® Monthly Air Quality Health & Activities

August 2 - September 15

Sat 8/2

80° /60°
1%
Plenty of sunshine; a beautiful start to the weekend

RealFeel®84°

RealFeel Shade™77°

Max UV Index9 (Very High)

WindNNW 6 mph

Sun 8/3

84° /63°
1%
Hazy sunshine; a nice day for outdoor activities

RealFeel®90°

RealFeel Shade™82°

Max UV Index9 (Very High)

WindS 6 mph

Mon 8/4

85° /65°
1%
Hazy sunshine

RealFeel®88°

RealFeel Shade™82°

Max UV Index9 (Very High)

WindNE 7 mph

Tue 8/5

80° /66°
0%
Sunshine and a few clouds

RealFeel®86°

RealFeel Shade™77°

Max UV Index8 (Very High)

WindENE 8 mph

Wed 8/6

82° /67°
7%
Intervals of clouds and sunshine

RealFeel®85°

RealFeel Shade™79°

Max UV Index7 (High)

WindNE 10 mph

Thu 8/7

83° /68°
5%
Mostly sunny

RealFeel®89°

RealFeel Shade™80°

Max UV Index8 (Very High)

WindENE 6 mph

Fri 8/8

85° /69°
4%
Mostly sunny

RealFeel®86°

RealFeel Shade™83°

Max UV Index8 (Very High)

WindENE 8 mph

Sat 8/9

84° /70°
6%
Partly sunny

RealFeel®88°

RealFeel Shade™85°

Max UV Index7 (High)

WindENE 7 mph

Sun 8/10

86° /70°
20%
Mostly sunny, very warm and humid

RealFeel®95°

RealFeel Shade™90°

Max UV Index8 (Very High)

WindS 7 mph

Mon 8/11

83° /66°
78%
Overcast and humid; rain in the afternoon

RealFeel®94°

RealFeel Shade™88°

Max UV Index8 (Very High)

WindSSW 8 mph

Tue 8/12

82° /67°
55%
A couple of morning showers; otherwise, mostly cloudy and humid

RealFeel®88°

RealFeel Shade™87°

Max UV Index4 (Moderate)

WindSSW 9 mph

Wed 8/13

83° /65°
60%
Humid with periods of rain

RealFeel®93°

RealFeel Shade™88°

Max UV Index8 (Very High)

WindWSW 5 mph

Thu 8/14

82° /66°
55%
Mostly cloudy and humid with occasional rain

RealFeel®88°

RealFeel Shade™81°

Max UV Index7 (High)

WindW 6 mph

Fri 8/15

83° /60°
5%
Abundant sunshine

RealFeel®90°

RealFeel Shade™84°

Max UV Index8 (Very High)

WindNW 2 mph

Sat 8/16

83° /64°
40%
Rather cloudy and humid; a thunderstorm in spots in the afternoon

RealFeel®89°

RealFeel Shade™84°

Max UV Index8 (Very High)

WindW 6 mph

Sun 8/17

82° /63°
10%
Mostly sunny

RealFeel®84°

RealFeel Shade™80°

Max UV Index7 (High)

WindN 8 mph

Mon 8/18

77° /63°
5%
Plenty of sunshine

RealFeel®86°

RealFeel Shade™76°

Max UV Index7 (High)

WindNW 5 mph

Tue 8/19

82° /65°
25%
Cloudy and humid

RealFeel®83°

RealFeel Shade™83°

Max UV Index2 (Low)

WindESE 2 mph

Wed 8/20

82° /64°
58%
Cloudy and humid with a thunderstorm or two

RealFeel®84°

RealFeel Shade™84°

Max UV Index2 (Low)

WindN 6 mph

Thu 8/21

78° /64°
65%
Remaining cloudy and humid with showers and thunderstorms

RealFeel®78°

RealFeel Shade™78°

Max UV Index2 (Low)

WindNNE 8 mph

Fri 8/22

77° /63°
5%
Sunny and less humid

RealFeel®79°

RealFeel Shade™75°

Max UV Index7 (High)

WindNNE 8 mph

Sat 8/23

76° /61°
10%
Sunny

RealFeel®85°

RealFeel Shade™75°

Max UV Index7 (High)

WindWSW 1 mph

Sun 8/24

80° /63°
10%
Mostly sunny

RealFeel®88°

RealFeel Shade™79°

Max UV Index7 (High)

WindS 2 mph

Mon 8/25

81° /64°
25%
Rather cloudy and humid

RealFeel®86°

RealFeel Shade™84°

Max UV Index2 (Low)

WindWSW 1 mph

Tue 8/26

81° /65°
70%
Occasional rain in the morning; otherwise, mostly cloudy and humid

RealFeel®86°

RealFeel Shade™85°

Max UV Index3 (Moderate)

WindSSW 7 mph

Wed 8/27

80° /64°
65%
Cloudy and humid; a couple of showers and a thunderstorm in the afternoon

RealFeel®82°

RealFeel Shade™82°

Max UV Index2 (Low)

WindSW 12 mph

Thu 8/28

78° /63°
40%
Times of clouds and sun with a shower in spots; humid

RealFeel®78°

RealFeel Shade™77°

Max UV Index5 (Moderate)

WindNNE 8 mph

Fri 8/29

76° /62°
20%
Mostly sunny and less humid

RealFeel®82°

RealFeel Shade™73°

Max UV Index6 (High)

WindNE 5 mph

Sat 8/30

77° /61°
20%
Partly sunny

RealFeel®84°

RealFeel Shade™77°

Max UV Index6 (High)

WindESE 5 mph

Sun 8/31

80° /64°
65%
A couple of showers in the morning; otherwise, mostly cloudy and humid

RealFeel®85°

RealFeel Shade™83°

Max UV Index2 (Low)

WindSE 6 mph

Mon 9/1

79° /64°
58%
A couple of showers in the morning; otherwise, mostly cloudy and humid

RealFeel®85°

RealFeel Shade™85°

Max UV Index3 (Moderate)

WindESE 4 mph

Tue 9/2

80° /62°
25%
Less humid with times of sun and clouds

RealFeel®78°

RealFeel Shade™77°

Max UV Index3 (Moderate)

WindNNE 12 mph

Wed 9/3

74° /61°
20%
Turning cloudy

RealFeel®77°

RealFeel Shade™73°

Max UV Index6 (High)

WindSE 6 mph

Thu 9/4

78° /62°
60%
A couple of morning showers; otherwise, humid with considerable cloudiness

RealFeel®82°

RealFeel Shade™82°

Max UV Index2 (Low)

WindWSW 7 mph

Fri 9/5

79° /62°
25%
A thick cloud cover and humid

RealFeel®79°

RealFeel Shade™79°

Max UV Index2 (Low)

WindNNE 6 mph

Sat 9/6

78° /61°
10%
Mostly sunny and humid

RealFeel®82°

RealFeel Shade™77°

Max UV Index6 (High)

WindNNE 6 mph

Sun 9/7

79° /61°
25%
Mostly sunny and humid

RealFeel®85°

RealFeel Shade™78°

Max UV Index6 (High)

WindNE 5 mph

Mon 9/8

78° /60°
40%
Humid with variable cloudiness; a thunderstorm in spots in the afternoon

RealFeel®79°

RealFeel Shade™79°

Max UV Index3 (Moderate)

WindNNE 5 mph

Tue 9/9

78° /61°
10%
Mostly sunny and humid

RealFeel®85°

RealFeel Shade™78°

Max UV Index5 (Moderate)

WindWNW 5 mph

Wed 9/10

77° /61°
39%
Increasing cloudiness and humid; a thunderstorm in spots in the afternoon

RealFeel®78°

RealFeel Shade™75°

Max UV Index5 (Moderate)

WindSSW 9 mph

Thu 9/11

77° /60°
20%
Mostly sunny and less humid

RealFeel®77°

RealFeel Shade™74°

Max UV Index5 (Moderate)

WindNNW 10 mph

Fri 9/12

79° /56°
61%
Partly sunny with a couple of thunderstorms in the afternoon

RealFeel®81°

RealFeel Shade™78°

Max UV Index5 (Moderate)

WindWNW 7 mph

Sat 9/13

74° /58°
1%
Mostly sunny and less humid

RealFeel®76°

RealFeel Shade™72°

Max UV Index5 (Moderate)

WindN 5 mph

Sun 9/14

69° /61°
57%
Mostly cloudy with a couple of showers, mainly early in the day

RealFeel®68°

RealFeel Shade™68°

Max UV Index2 (Low)

WindENE 6 mph

Mon 9/15

69° /45°
59%
Morning showers; otherwise, cloudy most of the time

RealFeel®67°

RealFeel Shade™67°

Max UV Index1 (Low)

WindWNW 15 mph

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World North America Canada Ontario Grimsby

Weather Near Grimsby:

  • Brampton, Ontario
  • Mississauga Valley, Ontario
  • Toronto, Ontario
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Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
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Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
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