Old Res Weather

Current Conditions [‒] Current Conditions [+]

35.1°F Colder than last hour.

1.7°C

Cold

Clear

Today: Hi 100 °F

Tonight: Lo 75 °F

Dew Point: 32.4°F Decreased 0.1°F since last hour.

Humidity: 90%

UV Index: 0.0 None

Air Quality Index:

Good

(Ozone)

Barometer: 29.00 in Falling 0.05 inHg/hr

982 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.01 in

Rain Thursday: 0.00 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 0 mph

OTHER PERSONAL WEATHER STATIONS

Alerts / Advisories [‒] Alerts / Advisories [+]

Southeast Middlesex County, MA - Extreme Heat Warning
- SEE ALL NEARBY ALERTS -

NWS Weather Forecast -
Today, Tonight, & Independence Day through Thursday Night

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Fri Jul 3, 2026 3:11am EDT

Overview:

- Dangerous heatwave continues today and Independence Day. Heat indices of 100-110 degrees today & 95-100+ on Independence Day.

- Isolated severe weather potential late today/tonight. Greatest risk interior MA/CT. Main risk will be isolated pockets of damaging straight line wind gusts.

- Low risk of severe weather and a few t-storms on Independence Day, but greatest risk for more widespread activity right now looks to be to our southwest. - Relief from the heat with cooler and more seasonable temperatures returning for the first half of next week. Also...the potential for some much need rain may occur in the late Sun-Tue time frame but that remains to be seen.

Extreme Heat Warning

Today:

Sunny

Hi 100 °F

Sunny, with a high near 100. Heat index values as high as 106. West wind 6 to 13 mph, with gusts as high as 23 mph.

Tonight:

Scattered Showers And T-Storms

Lo 75 °F

Tonight: Scattered Showers And Thunderstorms

Scattered showers and thunderstorms after 11pm. Partly cloudy, with a low around 75. Heat index values as high as 102. West wind 5 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

Independence Day:

Scattered Showers And T-Storms

Hi 96 °F

Independence Day: Scattered Showers And Thunderstorms

Scattered showers and thunderstorms. Mostly sunny, with a high near 96. Heat index values as high as 96. West wind 6 to 13 mph. Chance of precipitation is 30%.

Saturday Night:

Scattered Showers And T-Storms then Partly Cloudy

Lo 63 °F

Saturday Night: Scattered Showers And Thunderstorms then Partly Cloudy

Scattered showers and thunderstorms before 10pm. Partly cloudy, with a low around 63. Northwest wind 2 to 8 mph. Chance of precipitation is 30%.

Sunday:

Sunny

Hi 85 °F

Sunny, with a high near 85. East wind 2 to 9 mph.

Sunday Night:

Slight Chance Rain Showers

Lo 62 °F

A slight chance of rain showers between 9pm and 2am. Mostly cloudy, with a low around 62. Southeast wind 2 to 9 mph. Chance of precipitation is 20%.

Monday:

Partly Sunny then Chance Rain Showers

Hi 79 °F

A chance of rain showers after 2pm. Partly sunny, with a high near 79. Southeast wind 2 to 8 mph. Chance of precipitation is 30%.

Monday Night:

Chance Showers And T-Storms

Lo 63 °F

Monday Night: Chance Showers And Thunderstorms

A chance of rain showers before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. East wind 3 to 7 mph. Chance of precipitation is 50%.

Tuesday:

Chance Showers And T-Storms

Hi 76 °F

Tuesday: Chance Showers And Thunderstorms

A chance of showers and thunderstorms. Partly sunny, with a high near 76. Northeast wind 5 to 10 mph. Chance of precipitation is 50%.

Tuesday Night:

Chance Rain Showers

Lo 61 °F

A chance of rain showers. Mostly cloudy, with a low around 61. Northeast wind 5 to 8 mph. Chance of precipitation is 30%.

Wednesday:

Slight Chance Rain Showers

Hi 84 °F

A slight chance of rain showers. Mostly sunny, with a high near 84. Northeast wind around 7 mph.

Wednesday Night:

Partly Cloudy

Lo 64 °F

Partly cloudy, with a low around 64. Southwest wind around 6 mph.

Thursday:

Mostly Sunny

Hi 92 °F

Mostly sunny, with a high near 92. Southwest wind 3 to 7 mph.

Thursday Night:

Partly Cloudy

Lo 68 °F

Partly cloudy, with a low around 68. Southwest wind around 7 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 1pm through Sun 12am

Issued by:
National Weather Service Boston / Norton, MA
Updated Fri Jul 3, 2026 3:11am EDT

1:00pm

Sunny

98°F
Dew Pt 68°F
Heat Index: 104°F
Wind from W

W 13 mph
Precip: 2%

2:00pm

Sunny

99°F
Dew Pt 67°F
Heat Index: 104°F
Wind from W

W 13 mph
Precip: 3%

3:00pm

Mostly Sunny

100°F
Dew Pt 67°F
Heat Index: 105°F
Wind from W

W 13 mph
Precip: 3%

4:00pm

Sunny

100°F
Dew Pt 68°F
Heat Index: 106°F
Wind from W

W 13 mph
Precip: 2%

5:00pm

Sunny

99°F
Dew Pt 68°F
Heat Index: 105°F
Wind from W

W 13 mph
Precip: 2%

6:00pm

Mostly Clear

97°F
Dew Pt 68°F
Heat Index: 102°F
Wind from W

W 10 mph
Precip: 8%

7:00pm

Mostly Clear

94°F
Dew Pt 68°F
Heat Index: 99°F
Wind from W

W 9 mph
Precip: 13%

8:00pm

Partly Cloudy

91°F
Dew Pt 69°F
Heat Index: 96°F
Wind from W

W 7 mph
Precip: 19%

9:00pm

Partly Cloudy

88°F
Dew Pt 69°F
Heat Index: 92°F
Wind from W

W 7 mph
Precip: 24%

10:00pm

Mostly Cloudy

86°F
Dew Pt 69°F
Heat Index: 90°F
Wind from W

W 7 mph
Precip: 29%

11:00pm

Scattered Showers And Thunderstorms

84°F
Dew Pt 70°F
Heat Index: 88°F
Wind from W

W 6 mph
Precip: 29%

Sat
12:00am

Scattered Showers And Thunderstorms

83°F
Dew Pt 69°F
Heat Index: 87°F
Wind from W

W 6 mph
Precip: 29%

Sat
1:00am

Scattered Showers And Thunderstorms

81°F
Dew Pt 69°F
Heat Index: 84°F
Wind from W

W 6 mph
Precip: 26%

Sat
2:00am

Isolated Showers And Thunderstorms

79°F
Dew Pt 69°F
Wind from W

W 6 mph
Precip: 24%

Sat
3:00am

Isolated Showers And Thunderstorms

78°F
Dew Pt 68°F
Wind from W

W 6 mph
Precip: 21%

Sat
4:00am

Isolated Showers And Thunderstorms

76°F
Dew Pt 68°F
Wind from W

W 5 mph
Precip: 19%

Sat
5:00am

Isolated Showers And Thunderstorms

76°F
Dew Pt 68°F
Wind from W

W 5 mph
Precip: 16%

Sat
6:00am

Isolated Showers And Thunderstorms

77°F
Dew Pt 68°F
Wind from W

W 6 mph
Precip: 17%

Sat
7:00am

Isolated Showers And Thunderstorms

79°F
Dew Pt 68°F
Wind from W

W 7 mph
Precip: 17%

Sat
8:00am

Isolated Showers And Thunderstorms

81°F
Dew Pt 69°F
Heat Index: 84°F
Wind from NW

NW 7 mph
Precip: 18%

Sat
9:00am

Mostly Sunny

85°F
Dew Pt 68°F
Heat Index: 88°F
Wind from NW

NW 8 mph
Precip: 18%

Sat
10:00am

Mostly Sunny

88°F
Dew Pt 68°F
Heat Index: 92°F
Wind from NW

NW 9 mph
Precip: 17%

Sat
11:00am

Isolated Showers And Thunderstorms

90°F
Dew Pt 67°F
Heat Index: 93°F
Wind from NW

NW 10 mph
Precip: 17%

Sat
12:00pm

Isolated Showers And Thunderstorms

91°F
Dew Pt 67°F
Heat Index: 94°F
Wind from NW

NW 12 mph
Precip: 21%

Sat
1:00pm

Scattered Showers And Thunderstorms

92°F
Dew Pt 67°F
Heat Index: 96°F
Wind from W

W 12 mph
Precip: 25%

Sat
2:00pm

Scattered Showers And Thunderstorms

92°F
Dew Pt 67°F
Heat Index: 96°F
Wind from W

W 13 mph
Precip: 28%

Sat
3:00pm

Scattered Showers And Thunderstorms

92°F
Dew Pt 66°F
Heat Index: 95°F
Wind from W

W 12 mph
Precip: 29%

Sat
4:00pm

Scattered Showers And Thunderstorms

92°F
Dew Pt 67°F
Heat Index: 96°F
Wind from NW

NW 10 mph
Precip: 30%

Sat
5:00pm

Scattered Showers And Thunderstorms

91°F
Dew Pt 67°F
Heat Index: 94°F
Wind from NW

NW 9 mph
Precip: 30%

Sat
6:00pm

Scattered Showers And Thunderstorms

88°F
Dew Pt 67°F
Heat Index: 91°F
Wind from NW

NW 8 mph
Precip: 29%

Sat
7:00pm

Scattered Showers And Thunderstorms

85°F
Dew Pt 66°F
Heat Index: 87°F
Wind from NW

NW 7 mph
Precip: 28%

Sat
8:00pm

Scattered Showers And Thunderstorms

82°F
Dew Pt 65°F
Heat Index: 84°F
Wind from NW

NW 6 mph
Precip: 26%

Sat
9:00pm

Isolated Showers And Thunderstorms

79°F
Dew Pt 65°F
Wind from NW

NW 6 mph
Precip: 23%

Sat
10:00pm

Partly Cloudy

77°F
Dew Pt 64°F
Wind from NW

NW 7 mph
Precip: 20%

Sat
11:00pm

Partly Cloudy

75°F
Dew Pt 63°F
Wind from NW

NW 7 mph
Precip: 17%

Sun
12:00am

Mostly Clear

72°F
Dew Pt 62°F
Wind from N

N 6 mph
Precip: 14%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 031131
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
731 AM EDT Fri Jul 3 2026

.WHAT HAS CHANGED...
No significant changes to the forecast.

&&

.KEY MESSAGES...

- Dangerous heatwave continues today and Independence Day. Heat 
  indices of 100-110 degrees today & 95-100+ on Independence Day.

- Isolated severe weather potential late today/tonight. Greatest 
  risk interior MA/CT. Main risk will be isolated pockets of 
  damaging straight line wind gusts.

- Low risk of severe weather and a few t-storms on Independence
  Day, but greatest risk for more widespread activity right now
  looks to be to our southwest.
 
- Relief from the heat with cooler and more seasonable
  temperatures returning for the first half of next week.
  Also...the potential for some much need rain may occur in the
  late Sun-Tue time frame but that remains to be seen.

&&

.DISCUSSION...
KEY MESSAGE 1...Dangerous heatwave continues today and Independence 
Day. Heat indices of 100-110 degrees today & 95-100+ on Independence 
Day.

Near record high temperatures are once again on tap for the region 
today. An anomalous airmass remains in place across southern New 
England today with 925T on the order of +27C to +29C. This 
coupled with a very warm start, mostly sunny skies and westerly 
flow will result in temperatures soaring today. High 
temperatures should top out in the 97 to 103 degree range and 
once again challenge records. This combined with high dewpoints 
will result in dangerous heat indices of 100 to 110 degrees. 
Even across the Cape highs should reach into the 90s with heat 
indices of 95 to 105 degrees given westerly flow.

There will be little relief tonight as low temperatures only drop 
into the 72-77 degree range and probably only the upper 70s to near 
80 in the urban heat island of Boston. 

Independence Day will still feature dangerous heat and humidity. 
Height falls and somewhat lower 925T will likely prevent triple 
digit heat on the 4th. Nonetheless...we still expect highs in the 93 
to 99 degree range in most location. This will bring heat indices 
into the 95-100+ degree range and heat headlines remain in effect.

KEY MESSAGE 2...Isolated severe weather potential late today/tonight. 
Greatest risk interior MA/CT. Main risk will be isolated pockets of 
damaging straight line wind gusts.

The other concern will be the convective potential mainly late 
today/tonight. This portion of the forecast remains tricky given 
lack of large scale forcing but impressive instability.

We can not rule out a late afternoon isolated t-storm or two...But 
high resolution CAMs indicated the greatest risk may come this 
evening into the overnight hours. They tend to want to develop a few 
thunderstorms to our west and north. Given ample instability 
persisting well into tonight coupled with 0 to 6 KM shear of 30 to 
40 knots...this activity will be capable of surviving into our region. 
The greatest risk for this activity appears to be across interior MA 
and CT where forcing is a bit more prevalent. This is also indicated 
by the NADOCAST and CSU machine learning guidance. This will again 
be more of a mesoscale/nowcast type of forecast...But the potential 
for isolated severe weather exists again tonight. Low risk this 
potential could end up a bit more widespread if a complex of storms 
were to organize...which always has to be a concern in this type of 
environment. But again the lack of overall synoptic scale forcing 
will be a limiting factor. 

KEY MESSAGE 3...Low risk of severe weather and a few t-storms on 
Independence Day, but greatest risk for more widespread 
activity right now looks to be to our southwest.

There will a low risk for severe weather on Independence Day as
a cold front works south across the region. At this time...most
of the CAMs and machine learning guidance indicate that the 
greatest risk for more widespread thunderstorms and severe 
weather will be to our southwest. This is where the best 
instability will reside along with better forcing/shortwave 
energy. In our region...winds shifting to the NW early in the 
day may limit convergence and forcing for more widespread convection.
Nonetheless...given temperatures soaring well into the 90s 
coupled with height falls there will be the risk for a few 
thunderstorms and a low risk severe weather. 

KEY MESSAGE 4...Relief from the heat with cooler and more seasonable 
temperatures returning for the first half of next week. Also...the 
potential for some much need rain may occur in the late Sun-Tue time 
frame but that remains to be seen.

Long range ensemble guidance is in good agreement in the upper 
level ridge breaking down and a tendency towards lower heights 
next week. This will bring an end to the extreme heat, with readings 
more in line with typical summer. A wave of low pressure will also 
be approaching from the west. This may bring a period of much needed 
over running rain to parts of the region sometime in the Sun night 
to Tue time frame. Confidence in these setups is low this time of 
year given mesoscale convective factors and limited baroclinicity. 
Nonetheless...a period of two of much needed rainfall is possible 
for the start of the next work week.

&&

.AVIATION /12Z FRIDAY THROUGH TUESDAY/...
Forecaster Confidence Levels...

Low - less than 30 percent. 
Moderate - 30 to 60 percent. 
High - greater than 60 percent.

12z TAF Update...

Today through Independence Day...High confidence.

VFR conditions will dominate today through Independence Day. Low
chance for fog/stratus formation across the Islands,
particularly ACK, but confidence too low to include in the TAF. 
Otherwise...isolated thunderstorms will be possible mainly 
tonight and perhaps again on Independence Day. Best chance for a
late evening thunderstorm today will be across western
terminals, so introduced PROB30 TSRA at BDL between 01 and 05Z
tonight. Shower and storm activity should decrease as any sort
of storms move eastward. Later shifts should continue to
monitor. 

Westerly winds may gust to 20+ knots later this morning and 
afternoon with a few gusts near 25 knots possible. WInds shift to 
the NW on Independence Day with some 20 knot gusts. 

KBOS Terminal...High confidence in TAF.

KBDL Terminal...Moderate confidence in TAF, uncertainty in
thunderstorm potential and timing

Outlook /Saturday Night through Tuesday/...

Saturday Night: VFR. Isolated SHRA, isolated TSRA.

Sunday: VFR. Isolated SHRA.

Sunday Night: VFR. Chance SHRA.

Monday: Mainly VFR, with local MVFR possible. Chance SHRA,
slight chance TSRA.

Monday Night: Mainly VFR, with areas MVFR possible. Chance
SHRA, chance TSRA.

Tuesday: Mainly VFR, with areas MVFR possible. Breezy. Chance
SHRA, slight chance TSRA.

&&

.MARINE...
Forecaster Confidence Levels...

Low - less than 30 percent. 
Moderate - 30 to 60 percent. 
High - greater than 60 percent.

Today through Independence Day...High confidence.

Winds/seas should remain below small craft advisory thresholds today 
through Independence Day. However...some 20+ knot wind gusts near 
shore later this morning and afternoon will result in some chop in 
some near shore sounds and Bays.

Outlook /Saturday Night through Tuesday/...

Saturday Night: Winds less than 25 kt. Scattered rain showers,
isolated thunderstorms. 

Sunday: Winds less than 25 kt. Isolated rain showers. 

Sunday Night: Winds less than 25 kt. Chance of rain showers. 

Monday: Winds less than 25 kt. Chance of rain showers, slight
chance of thunderstorms. 

Monday Night: Winds less than 25 kt. Seas locally approaching
5 ft. Chance of rain showers, chance of thunderstorms. 

Tuesday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Chance of rain showers, slight chance of thunderstorms.

&&

.CLIMATE...
Record High Temperatures:

July 3: 
KBOS: 102/1911
KBDL: 102/1966
KPVD: 98/2002
KORH: 96/1911

July 4: 
KBOS: 104/1911 
KBDL: 99/1911
KPVD: 99/1919
KORH: 102/1911


Record High Minimum Temperatures:

July 3: 
KBOS: 80/2002
KBDL: 73/2018
KPVD: 78/2002
KORH: 72/2002

July 4: 
KBOS: 77/2002
KBDL: 74/2018
KPVD: 77/2002
KORH: 73/2018

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...Extreme Heat Warning until 8 PM EDT Saturday for CTZ002>004.
MA...Extreme Heat Warning until 8 PM EDT Saturday for MAZ002>021-
     026.
     Air Quality Alert from 11 AM this morning to 11 PM EDT this 
     evening for MAZ020>024.
     Heat Advisory until 8 PM EDT Saturday for MAZ022-023.
RI...Extreme Heat Warning until 8 PM EDT Saturday for RIZ001>007.
     Air Quality Alert from 11 AM this morning to 11 PM EDT this 
     evening for RIZ003-004-006>008.
MARINE...None.

&&

$$

DISCUSSION...Frank
AVIATION...Frank/Guest
MARINE...Frank
CLIMATE...FT

CLOSE