Alton, Ontario

Breezy and humid with low clouds, then perhaps some sun

RealFeel®98°

RealFeel Shade™95°

Max UV Index7 (High)

WindW 14 mph

Mon 6/23

92° /70°

Sunny to partly cloudy, breezy and hot; possible danger of dehydration and heatstroke while doing strenuous activities

RealFeel®98°

RealFeel Shade™91°

Max UV Index10 (Very High)

WindWSW 13 mph

Tue 6/24

83° /61°

43%

Partly sunny, warm and humid; widely separated thunderstorms in the afternoon

RealFeel®93°

RealFeel Shade™86°

Max UV Index9 (Very High)

WindWNW 8 mph

Wed 6/25

80° /60°

73%

Intervals of clouds and sunshine with a couple of showers and a thunderstorm, mainly early; humid

RealFeel®85°

RealFeel Shade™80°

Max UV Index4 (Moderate)

WindWSW 6 mph

Thu 6/26

A thick cloud cover with occasional rain and a thunderstorm

RealFeel®77°

RealFeel Shade™76°

Max UV Index2 (Low)

WindENE 6 mph

Fri 6/27

77° /59°

58%

Intervals of clouds and sunshine with a couple of thunderstorms; humid

RealFeel®81°

RealFeel Shade™76°

Max UV Index10 (Very High)

WindSW 12 mph

Sat 6/28

75° /57°

58%

Cloudy and humid with a couple of thunderstorms

RealFeel®81°

RealFeel Shade™80°

Max UV Index3 (Moderate)

WindNE 4 mph

Sun 6/29

76° /56°

76%

Humid with rain

RealFeel®81°

RealFeel Shade™81°

Max UV Index2 (Low)

WindE 8 mph

Mon 6/30

Mostly cloudy and humid with a touch of rain

RealFeel®85°

RealFeel Shade™81°

Max UV Index5 (Moderate)

WindNE 9 mph

Tue 7/1

79° /59°

36%

A morning shower in places; otherwise, partly sunny

RealFeel®81°

RealFeel Shade™77°

Max UV Index7 (High)

WindENE 8 mph

Wed 7/2

81° /54°

69%

Clouds and sun with a couple of showers and a thunderstorm in the afternoon

RealFeel®87°

RealFeel Shade™79°

Max UV Index10 (Very High)

WindWSW 5 mph

Thu 7/3

77° /57°

Humid with times of sun and clouds

RealFeel®80°

RealFeel Shade™76°

Max UV Index4 (Moderate)

WindNNW 6 mph

Fri 7/4

76° /57°

35%

Mostly cloudy with a couple of showers and thunderstorms possible

RealFeel®79°

RealFeel Shade™75°

Max UV Index8 (Very High)

WindNNW 5 mph

Sat 7/5

75° /56°

Intervals of clouds and sunshine

RealFeel®78°

RealFeel Shade™73°

Max UV Index5 (Moderate)

WindWSW 4 mph

Sun 7/6

80° /58°

40%

More clouds than sun with a thunderstorm in spots in the afternoon

RealFeel®82°

RealFeel Shade™80°

Max UV Index9 (Very High)

WindW 4 mph

Mon 7/7

65%

Rather cloudy and humid; a couple of showers and a thunderstorm in the afternoon

RealFeel®83°

RealFeel Shade™80°

Max UV Index4 (Moderate)

WindSSW 2 mph

Tue 7/8

78° /59°

63%

Cloudy and humid; a little rain in the morning followed by a couple of showers and a thunderstorm in the afternoon

RealFeel®79°

RealFeel Shade™79°

Max UV Index2 (Low)

WindSSW 7 mph

Wed 7/9

75° /58°

Partly sunny

RealFeel®77°

RealFeel Shade™72°

Max UV Index9 (Very High)

WindSW 8 mph

Thu 7/10

74° /58°

57%

Cloudy; a shower in spots in the morning followed by a little rain in the afternoon

RealFeel®71°

RealFeel Shade™71°

Max UV Index3 (Moderate)

WindSW 12 mph

Fri 7/11

73° /57°

Clouds and sunshine

RealFeel®76°

RealFeel Shade™71°

Max UV Index5 (Moderate)

WindSW 6 mph

Sat 7/12

74° /58°

57%

Overcast with a bit of rain in the afternoon

RealFeel®74°

RealFeel Shade™74°

Max UV Index5 (Moderate)

WindS 8 mph

Sun 7/13

75° /52°

Partly sunny and less humid

RealFeel®76°

RealFeel Shade™71°

Max UV Index10 (Very High)

WindW 14 mph

Mon 7/14

73° /51°

Becoming cloudy

RealFeel®76°

RealFeel Shade™71°

Max UV Index10 (Very High)

WindWNW 7 mph

Tue 7/15

72° /53°

Some sun, then increasing clouds

RealFeel®73°

RealFeel Shade™71°

Max UV Index7 (High)

WindESE 4 mph

Wed 7/16

74° /57°

66%

A thick cloud cover and humid; rain in the morning followed by a couple of showers and a thunderstorm in the afternoon

RealFeel®78°

RealFeel Shade™78°

Max UV Index2 (Low)

WindS 8 mph

Thu 7/17

75° /58°

56%

Sunshine and some clouds with a passing shower in the afternoon

RealFeel®82°

RealFeel Shade™74°

Max UV Index9 (Very High)

WindW 5 mph

Fri 7/18

75° /57°

Mostly cloudy

RealFeel®78°

RealFeel Shade™75°

Max UV Index4 (Moderate)

WindSW 4 mph

Sat 7/19

79° /60°

65%

Cloudy and humid; a couple of showers in the morning followed by a thundershower in the afternoon

RealFeel®83°

RealFeel Shade™83°

Max UV Index2 (Low)

WindSW 10 mph

Sun 7/20

58%

A bit of morning rain; otherwise, cloudy and humid

RealFeel®81°

RealFeel Shade™79°

Max UV Index2 (Low)

WindW 10 mph

Mon 7/21

76° /55°

10%

Mostly sunny and less humid

RealFeel®82°

RealFeel Shade™74°

Max UV Index9 (Very High)

WindWNW 2 mph

Tue 7/22

76° /58°

10%

Mostly sunny

RealFeel®83°

RealFeel Shade™77°

Max UV Index9 (Very High)

WindSSE 4 mph

Wed 7/23

78° /60°

40%

Times of sun and clouds with a thundershower in spots; humid

RealFeel®82°

RealFeel Shade™82°

Max UV Index5 (Moderate)

WindS 7 mph

Thu 7/24

79° /60°

69%

Cloudy and humid; periods of rain in the morning followed by showers and thunderstorms in the afternoon

RealFeel®84°

RealFeel Shade™84°

Max UV Index2 (Low)

WindWNW 4 mph

Fri 7/25

76° /59°

Cloudy; a little morning rain followed by a shower in spots in the afternoon

RealFeel®77°

RealFeel Shade™77°

Max UV Index2 (Low)

WindNNE 6 mph

Sat 7/26

76° /60°

39%

Humid with intervals of clouds and sunshine; a thunderstorm in spots in the afternoon

RealFeel®83°

RealFeel Shade™78°

Max UV Index9 (Very High)

WindSE 5 mph

Sun 7/27

78° /59°

Rather cloudy and humid; a little rain in the morning followed by a shower in spots in the afternoon

RealFeel®83°

RealFeel Shade™81°

Max UV Index3 (Moderate)

WindWSW 5 mph

Mon 7/28

80° /59°

Mostly cloudy and humid

RealFeel®85°

RealFeel Shade™85°

Max UV Index3 (Moderate)

WindW 2 mph

Tue 7/29

82° /61°