Extreme Heat Warning

June 21 - August 4

Sat 6/21

86° /68°

Sunny to partly cloudy and very warm

RealFeel®90°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindWNW 7 mph

Sun 6/22

95° /68°

42%

Widely separated morning thunderstorms; otherwise, hot and humid with areas of low clouds, then some sun

alerts

Extreme Heat Warning

11:00 AM Sunday - 8:00 PM Tuesday

RealFeel®100°

RealFeel Shade™96°

Max UV Index9 (Very High)

WindW 14 mph

Mon 6/23

95° /72°

Remaining very warm and humid with sun and some clouds; one of the hottest days of the year so far; stay cool and well hydrated

alerts

Extreme Heat Warning

11:00 AM Sunday - 8:00 PM Tuesday

RealFeel®107°

RealFeel Shade™101°

Max UV Index10 (Very High)

WindSSE 7 mph

Tue 6/24

100° /76°

25%

Mostly sunny, very hot and humid; danger of dehydration and heatstroke if outside for extended periods of time

alerts

Extreme Heat Warning

11:00 AM Sunday - 8:00 PM Tuesday

RealFeel®107°

RealFeel Shade™100°

Max UV Index10 (Very High)

WindNW 8 mph

Wed 6/25

88° /66°

25%

Not as hot with times of clouds and sun

RealFeel®97°

RealFeel Shade™88°

Max UV Index10 (Very High)

WindE 6 mph

Thu 6/26

78° /61°

Partly sunny and not as warm with lower humidity

RealFeel®74°

RealFeel Shade™64°

Max UV Index10 (Very High)

WindENE 6 mph

Fri 6/27

75° /62°

56%

Times of clouds and sun with a couple of showers, mainly early in the day

RealFeel®80°

RealFeel Shade™72°

Max UV Index7 (High)

WindESE 6 mph

Sat 6/28

78° /60°

67%

A morning thunderstorm or two; otherwise, partly sunny and humid

RealFeel®90°

RealFeel Shade™85°

Max UV Index7 (High)

WindWSW 7 mph

Sun 6/29

84° /64°

Partly sunny and less humid

RealFeel®91°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindNNW 6 mph

Mon 6/30

87° /67°

38%

Mostly cloudy and humid; a thunderstorm in one or two spots in the afternoon

RealFeel®94°

RealFeel Shade™93°

Max UV Index8 (Very High)

WindSSW 2 mph

Tue 7/1

86° /65°

25%

Cloudy and uncomfortably humid

RealFeel®93°

RealFeel Shade™91°

Max UV Index2 (Low)

WindS 13 mph

Wed 7/2

83° /62°

Mostly sunny and less humid

RealFeel®87°

RealFeel Shade™82°

Max UV Index10 (Very High)

WindWSW 9 mph

Thu 7/3

84° /63°

55%

A thick cloud cover with occasional rain

RealFeel®82°

RealFeel Shade™82°

Max UV Index2 (Low)

WindNE 9 mph

Fri 7/4

81° /61°

10%

Partly sunny

RealFeel®88°

RealFeel Shade™81°

Max UV Index10 (Very High)

WindNNE 6 mph

Sat 7/5

82° /64°

55%

Cloudy with occasional rain

RealFeel®83°

RealFeel Shade™82°

Max UV Index3 (Moderate)

WindESE 4 mph

Sun 7/6

80° /61°

25%

Partly sunny

RealFeel®85°

RealFeel Shade™77°

Max UV Index10 (Very High)

WindN 7 mph

Mon 7/7

80° /63°

25%

Times of clouds and sun

RealFeel®81°

RealFeel Shade™79°

Max UV Index5 (Moderate)

WindNNE 5 mph

Tue 7/8

81° /61°

Plenty of sunshine

RealFeel®87°

RealFeel Shade™79°

Max UV Index10 (Very High)

WindWSW 5 mph

Wed 7/9

85° /65°

25%

Mostly cloudy

RealFeel®85°

RealFeel Shade™83°

Max UV Index3 (Moderate)

WindWSW 7 mph

Thu 7/10

87° /65°

10%

Abundant sunshine and humid

RealFeel®92°

RealFeel Shade™86°

Max UV Index10 (Very High)

WindSW 9 mph

Fri 7/11

87° /66°

25%

Mostly cloudy and humid

RealFeel®88°

RealFeel Shade™88°

Max UV Index4 (Moderate)

WindSW 10 mph

Sat 7/12

86° /66°

25%

Humid with partial sunshine

RealFeel®94°

RealFeel Shade™87°

Max UV Index7 (High)

WindSSW 8 mph

Sun 7/13

88° /65°

40%

Mainly cloudy and humid; a thunderstorm in spots in the afternoon

RealFeel®91°

RealFeel Shade™91°

Max UV Index4 (Moderate)

WindSW 10 mph

Mon 7/14

87° /65°

39%

Humid with sunshine and a few clouds; a thunderstorm around in the afternoon

RealFeel®93°

RealFeel Shade™88°

Max UV Index10 (Very High)

WindNNW 6 mph

Tue 7/15

82° /64°

44%

Mostly cloudy and humid with a stray shower

RealFeel®84°

RealFeel Shade™84°

Max UV Index3 (Moderate)

WindESE 4 mph

Wed 7/16

80° /63°

58%

Cloudy and humid; a thundershower in the morning followed by a thunderstorm in the afternoon

RealFeel®85°

RealFeel Shade™85°

Max UV Index2 (Low)

WindSSW 9 mph

Thu 7/17

81° /60°

25%

Cloudy and less humid

RealFeel®78°

RealFeel Shade™78°

Max UV Index3 (Moderate)

WindNE 13 mph

Fri 7/18

80° /60°

25%

Mostly cloudy

RealFeel®80°

RealFeel Shade™79°

Max UV Index3 (Moderate)

WindENE 2 mph

Sat 7/19

82° /62°

25%

Cloudy

RealFeel®81°

RealFeel Shade™81°

Max UV Index3 (Moderate)

WindESE 4 mph

Sun 7/20

81° /65°

72%

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

RealFeel®85°

RealFeel Shade™85°

Max UV Index2 (Low)

WindSSE 7 mph

Mon 7/21

81° /65°

25%

Remaining cloudy and humid

RealFeel®84°

RealFeel Shade™84°

Max UV Index3 (Moderate)

WindENE 4 mph

Tue 7/22

82° /66°

25%

Mostly cloudy and humid

RealFeel®91°

RealFeel Shade™88°

Max UV Index3 (Moderate)

WindSSW 6 mph

Wed 7/23

87° /66°

63%

Uncomfortably humid with considerable cloudiness; a couple of showers and a thunderstorm in the afternoon

RealFeel®96°

RealFeel Shade™96°

Max UV Index3 (Moderate)

WindSSW 4 mph

Thu 7/24

84° /65°

59%

Considerable cloudiness and humid with a couple of showers and a thunderstorm

RealFeel®89°

RealFeel Shade™87°

Max UV Index3 (Moderate)

WindNNE 5 mph

Fri 7/25

82° /66°

25%

Humid with times of clouds and sun

RealFeel®91°

RealFeel Shade™84°

Max UV Index9 (Very High)

WindWSW 4 mph

Sat 7/26

83° /65°

25%

Humid with times of clouds and sun

RealFeel®86°

RealFeel Shade™82°

Max UV Index5 (Moderate)

WindNW 7 mph

Sun 7/27

81° /63°

20%

Less humid with plenty of sunshine

RealFeel®87°

RealFeel Shade™80°

Max UV Index9 (Very High)

WindNNW 5 mph

Mon 7/28

81° /64°

20%

Plenty of sunshine

RealFeel®88°

RealFeel Shade™80°

Max UV Index9 (Very High)

WindWNW 4 mph

Tue 7/29

82° /66°

20%

Sunshine and a few clouds

RealFeel®87°

RealFeel Shade™80°

Max UV Index9 (Very High)

WindWSW 7 mph

Wed 7/30

85° /61°

10%

Less humid with sunshine and a few clouds

RealFeel®86°

RealFeel Shade™82°

Max UV Index9 (Very High)

WindNW 10 mph

Thu 7/31

80° /60°

20%

Partial sunshine

RealFeel®85°

RealFeel Shade™77°

Max UV Index9 (Very High)

WindWNW 7 mph

Fri 8/1

80° /65°

70%

Cloudy and humid; periods of rain in the afternoon

RealFeel®82°

RealFeel Shade™80°

Max UV Index2 (Low)

WindSSW 12 mph

Sat 8/2

83° /62°

25%

Less humid with sun followed by increasing clouds

RealFeel®82°

RealFeel Shade™80°

Max UV Index8 (Very High)

WindWNW 13 mph

Sun 8/3

81° /61°

25%

Mostly sunny

RealFeel®83°

RealFeel Shade™78°

Max UV Index9 (Very High)

WindNW 9 mph

Mon 8/4

82° /63°

61%

Considerable cloudiness and humid with thunderstorms

RealFeel®88°

RealFeel Shade™88°

Max UV Index2 (Low)

WindSSW 6 mph

South Billerica, MA

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

Warnings

Data Suite

Newsletters

Advertising

Superior Accuracy™

Video

Winter Center

Daily

Sat 6/21

Sun 6/22

Mon 6/23

Tue 6/24

Wed 6/25

Thu 6/26

Fri 6/27

Sat 6/28

Sun 6/29

Mon 6/30

Tue 7/1

Wed 7/2

Thu 7/3

Fri 7/4

Sat 7/5

Sun 7/6

Mon 7/7

Tue 7/8

Wed 7/9

Thu 7/10

Fri 7/11

Sat 7/12

Sun 7/13

Mon 7/14

Tue 7/15

Wed 7/16

Thu 7/17

Fri 7/18

Sat 7/19

Sun 7/20

Mon 7/21

Tue 7/22

Wed 7/23

Thu 7/24

Fri 7/25

Sat 7/26

Sun 7/27

Mon 7/28

Tue 7/29

Wed 7/30

Thu 7/31

Fri 8/1

Sat 8/2

Sun 8/3

Mon 8/4

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Weather Near South Billerica: