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Storms with damaging winds, flash flooding risk strike Kansas, head toward Northeast Chevron right
Dangerous heat and humidity to grip the Southeast. Chevron right

Waltham, MA

89°F
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Waltham

Massachusetts

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Waltham, MA Weather
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Today

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11 AM

90°
RealFeel® 102°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday

RealFeel Shade™95°

WindWSW 9 mph

Air QualityFair

Max UV Index6 (High)

Wind Gusts15 mph

Humidity60%

Indoor Humidity60% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover5%

Visibility10 mi

Cloud Ceiling33500 ft

12 PM

91°
RealFeel® 103°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday

RealFeel Shade™96°

WindWSW 10 mph

Air QualityFair

Max UV Index8 (Very High)

Wind Gusts16 mph

Humidity55%

Indoor Humidity55% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

93°
RealFeel® 103°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday

RealFeel Shade™95°

WindWSW 10 mph

Air QualityFair

Max UV Index9 (Very High)

Wind Gusts18 mph

Humidity50%

Indoor Humidity50% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

94°
RealFeel® 101°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 25%
Chevron down
Partly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday

RealFeel Shade™96°

WindWSW 16 mph

Air QualityFair

Max UV Index8 (Very High)

Wind Gusts29 mph

Humidity48%

Indoor Humidity48% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

93°
RealFeel® 99°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 25%
Chevron down
Partly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday

RealFeel Shade™94°

WindW 16 mph

Air QualityFair

Max UV Index6 (High)

Wind Gusts28 mph

Humidity51%

Indoor Humidity51% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

90°
RealFeel® 95°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 31%
Chevron down
Partly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday

RealFeel Shade™92°

WindW 16 mph

Air QualityFair

Max UV Index4 (Moderate)

Wind Gusts27 mph

Humidity54%

Indoor Humidity54% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

88°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 49%
Chevron down
Partly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday

RealFeel Shade™90°

WindW 16 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts27 mph

Humidity58%

Indoor Humidity58% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility5 mi

Cloud Ceiling30000 ft

6 PM

82°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 56%
Chevron down
Partly sunny w/ t-storms
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday

RealFeel Shade™83°

WindWNW 15 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts21 mph

Humidity81%

Indoor Humidity81% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Rain0.20 in

Visibility4 mi

Cloud Ceiling30000 ft

7 PM

81°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 56%
Chevron down
Partly sunny w/ t-storms
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday

RealFeel Shade™81°

WindWNW 14 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts17 mph

Humidity81%

Indoor Humidity81% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover45%

Rain0.20 in

Visibility4 mi

Cloud Ceiling30000 ft

8 PM

79°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Partly sunny w/ t-storms

RealFeel Shade™79°

WindNW 8 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts17 mph

Humidity78%

Indoor Humidity78% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover46%

Rain0.05 in

Visibility5 mi

Cloud Ceiling30000 ft

9 PM

79°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Partly cloudy

WindNW 8 mph

Air QualityFair

Wind Gusts17 mph

Humidity75%

Indoor Humidity75% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

76°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 40%
Chevron down
Partly cloudy

WindNNW 8 mph

Air QualityFair

Wind Gusts16 mph

Humidity79%

Indoor Humidity79% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

76°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Partly cloudy

WindNNW 8 mph

Air QualityFair

Wind Gusts16 mph

Humidity77%

Indoor Humidity77% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

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World North America United States Massachusetts Waltham

Weather Near Waltham:

  • Boston, MA
  • Dorchester, MA
  • Worcester, MA
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