August 8 - September 21

Fri 8/8

83° /53°

Mostly sunny; heat and humidity to build over the weekend and early next week

RealFeel®89°

RealFeel Shade™80°

Max UV Index8 (Very High)

WindS 6 mph

Sat 8/9

84° /57°

Plenty of sunshine

RealFeel®89°

RealFeel Shade™82°

Max UV Index8 (Very High)

WindSE 6 mph

Sun 8/10

91° /65°

Hot with sun and areas of high clouds; possible danger of dehydration and heatstroke while doing strenuous activities

RealFeel®97°

RealFeel Shade™89°

Max UV Index8 (Very High)

WindSSE 5 mph

Mon 8/11

95° /65°

Blazing sunshine and hot; possible danger of dehydration and heatstroke while doing strenuous activities

RealFeel®100°

RealFeel Shade™93°

Max UV Index8 (Very High)

WindSW 6 mph

Tue 8/12

95° /67°

25%

Hot with plenty of sunshine; possible danger of dehydration and heatstroke while doing strenuous activities

RealFeel®98°

RealFeel Shade™93°

Max UV Index8 (Very High)

WindSW 6 mph

Wed 8/13

91° /69°

16%

Mostly sunny and hot

RealFeel®96°

RealFeel Shade™89°

Max UV Index8 (Very High)

WindSSW 8 mph

Thu 8/14

90° /67°

75%

Hot with intervals of clouds and sunshine; a couple of afternoon thunderstorms

RealFeel®94°

RealFeel Shade™88°

Max UV Index8 (Very High)

WindSSW 9 mph

Fri 8/15

87° /66°

59%

Morning showers; otherwise, very warm with variable cloudiness

RealFeel®86°

RealFeel Shade™84°

Max UV Index3 (Moderate)

WindNE 10 mph

Sat 8/16

85° /67°

Mostly sunny

RealFeel®89°

RealFeel Shade™83°

Max UV Index8 (Very High)

WindNE 7 mph

Sun 8/17

87° /66°

56%

Cloudy, very warm and humid with a little rain

RealFeel®90°

RealFeel Shade™90°

Max UV Index4 (Moderate)

WindSSW 12 mph

Mon 8/18

84° /65°

55%

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

RealFeel®94°

RealFeel Shade™89°

Max UV Index7 (High)

WindSW 4 mph

Tue 8/19

82° /65°

55%

Mostly cloudy and humid with a little rain

RealFeel®95°

RealFeel Shade™89°

Max UV Index3 (Moderate)

WindENE 2 mph

Wed 8/20

81° /61°

Mostly sunny and humid

RealFeel®92°

RealFeel Shade™87°

Max UV Index7 (High)

WindE 4 mph

Thu 8/21

80° /59°

58%

A couple of showers in the morning; otherwise, humid with periods of clouds and sunshine

RealFeel®86°

RealFeel Shade™85°

Max UV Index3 (Moderate)

WindSSE 2 mph

Fri 8/22

77° /62°

25%

Mostly cloudy

RealFeel®78°

RealFeel Shade™76°

Max UV Index3 (Moderate)

WindNE 6 mph

Sat 8/23

76° /61°

25%

Considerable cloudiness

RealFeel®77°

RealFeel Shade™77°

Max UV Index2 (Low)

WindN 4 mph

Sun 8/24

78° /61°

25%

Rather cloudy

RealFeel®85°

RealFeel Shade™77°

Max UV Index7 (High)

WindWSW 2 mph

Mon 8/25

82° /62°

25%

Mostly sunny and humid

RealFeel®88°

RealFeel Shade™81°

Max UV Index7 (High)

WindWSW 7 mph

Tue 8/26

82° /61°

25%

Mostly cloudy and humid

RealFeel®86°

RealFeel Shade™83°

Max UV Index2 (Low)

WindSSW 4 mph

Wed 8/27

80° /62°

40%

Cloudy and humid; a thunderstorm in spots in the afternoon

RealFeel®84°

RealFeel Shade™83°

Max UV Index2 (Low)

WindSSE 4 mph

Thu 8/28

81° /61°

25%

Cloudy and humid

RealFeel®84°

RealFeel Shade™84°

Max UV Index2 (Low)

WindW 7 mph

Fri 8/29

81° /60°

10%

Mostly sunny and less humid

RealFeel®84°

RealFeel Shade™79°

Max UV Index7 (High)

WindN 6 mph

Sat 8/30

77° /59°

10%

Mostly sunny

RealFeel®83°

RealFeel Shade™75°

Max UV Index7 (High)

WindSW 2 mph

Sun 8/31

79° /60°

25%

Cloudy

RealFeel®79°

RealFeel Shade™79°

Max UV Index2 (Low)

WindSW 4 mph

Mon 9/1

77° /61°

25%

Cloudy and humid

RealFeel®78°

RealFeel Shade™78°

Max UV Index2 (Low)

WindE 4 mph

Tue 9/2

76° /60°

66%

Remaining cloudy and humid; morning showers followed by a shower in spots in the afternoon

RealFeel®75°

RealFeel Shade™75°

Max UV Index1 (Low)

WindNE 9 mph

Wed 9/3

79° /57°

Less humid with plenty of sun

RealFeel®80°

RealFeel Shade™76°

Max UV Index6 (High)

WindNNE 9 mph

Thu 9/4

74° /56°

20%

More sunshine than clouds

RealFeel®80°

RealFeel Shade™73°

Max UV Index6 (High)

WindSW 1 mph

Fri 9/5

74° /60°

70%

Cloudy with showers and thunderstorms becoming more widespread

RealFeel®75°

RealFeel Shade™75°

Max UV Index1 (Low)

WindSSW 6 mph

Sat 9/6

75° /60°

67%

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

RealFeel®76°

RealFeel Shade™76°

Max UV Index1 (Low)

WindESE 6 mph

Sun 9/7

72° /59°

69%

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

RealFeel®75°

RealFeel Shade™75°

Max UV Index1 (Low)

WindSE 6 mph

Mon 9/8

73° /59°

77%

Remaining cloudy and humid with a couple of showers followed by a steadier rain

RealFeel®70°

RealFeel Shade™70°

Max UV Index1 (Low)

WindNE 9 mph

Tue 9/9

73° /58°

25%

Clouds and sun

RealFeel®80°

RealFeel Shade™74°

Max UV Index6 (High)

WindWNW 4 mph

Wed 9/10

77° /59°

25%

Cloudy and humid

RealFeel®79°

RealFeel Shade™79°

Max UV Index2 (Low)

WindSW 5 mph

Thu 9/11

77° /59°

20%

Partly sunny and humid

RealFeel®81°

RealFeel Shade™76°

Max UV Index5 (Moderate)

WindW 8 mph

Fri 9/12

76° /52°

66%

Considerable cloudiness; humid with showers and thunderstorms

RealFeel®79°

RealFeel Shade™79°

Max UV Index1 (Low)

WindNE 9 mph

Sat 9/13

78° /51°

Mostly sunny and less humid

RealFeel®78°

RealFeel Shade™75°

Max UV Index5 (Moderate)

WindNNW 9 mph

Sun 9/14

70° /53°

25%

Some sunshine

RealFeel®72°

RealFeel Shade™68°

Max UV Index5 (Moderate)

WindNNE 7 mph

Mon 9/15

77° /45°

70%

Mostly cloudy and windy; a thunderstorm in spots in the morning, then afternoon showers

RealFeel®75°

RealFeel Shade™73°

Max UV Index4 (Moderate)

WindSSW 18 mph

Tue 9/16

68° /45°

Sunny to partly cloudy and less humid

RealFeel®71°

RealFeel Shade™66°

Max UV Index5 (Moderate)

WindWNW 8 mph

Wed 9/17

69° /47°

Plenty of sunshine

RealFeel®75°

RealFeel Shade™68°

Max UV Index5 (Moderate)

WindW 4 mph

Thu 9/18

68° /49°

Partly sunny

RealFeel®69°

RealFeel Shade™66°

Max UV Index5 (Moderate)

WindSW 7 mph

Fri 9/19

70° /53°

Plenty of sunshine

RealFeel®70°

RealFeel Shade™67°

Max UV Index5 (Moderate)

WindSSE 8 mph

Sat 9/20

68° /51°

60%

Periods of rain

RealFeel®65°

RealFeel Shade™65°

Max UV Index2 (Low)

WindS 15 mph

Sun 9/21

73° /52°

Some sun

RealFeel®75°

RealFeel Shade™72°

Max UV Index5 (Moderate)

WindW 6 mph

Hopkinton, MA

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