Old Res Weather

Current Conditions [‒] Current Conditions [+]

35.1°F Colder than last hour.

1.7°C

Cold

Few Clouds

This Afternoon: Hi 102 °F

Tonight: Lo 76 °F

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

Humidity: 90%

UV Index: 0.0 None

Air Quality Index: 44

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 Wednesday: 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 - Air Quality Alert
- SEE ALL NEARBY ALERTS -

NWS Weather Forecast -
This Afternoon, Tonight, & Friday through Wednesday Night

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Thu Jul 2, 2026 2:49pm EDT

Overview:

- Dangerous prolonged heatwave continues through Sat July 4th. Afternoon Heat Indices of 100 to 110 degrees again Friday but still 95 to 100+ on Saturday. Little relief at night either.

- Low convective/severe weather probability through tonight given the lack of forcing. However, if isolated storms are able to develop, they could become severe. The thunderstorm and severe weather potential increases late Friday and/or Saturday ahead of an approaching cold front.

- Relief from the heat with cooler and more seasonable temperatures returning for the first half of next week.

Extreme Heat Warning
Air Quality Alert

This Afternoon:

Sunny

Hi 102 °F

Sunny, with a high near 102. Heat index values as high as 111. West wind around 9 mph.

Tonight:

Mostly Clear

Lo 76 °F

Mostly clear, with a low around 76. Heat index values as high as 106. West wind 5 to 8 mph. Chance of precipitation is 20%.

Friday:

Sunny

Hi 101 °F

Sunny, with a high near 101. Heat index values as high as 106. West wind 6 to 10 mph.

Friday Night:

Partly Cloudy

Lo 74 °F

Partly cloudy, with a low around 74. Heat index values as high as 101. West wind 5 to 9 mph. Chance of precipitation is 20%.

Independence Day:

Mostly Sunny then Chance Showers And T-Storms

Hi 93 °F

Independence Day: Mostly Sunny then Chance Showers And Thunderstorms

A chance of showers and thunderstorms between 2pm and 5pm, then showers and thunderstorms likely. Mostly sunny, with a high near 93. West wind 6 to 10 mph. Chance of precipitation is 60%.

Saturday Night:

Chance Showers And T-Storms then Partly Cloudy

Lo 68 °F

Saturday Night: Chance Showers And Thunderstorms then Partly Cloudy

A chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 68. Northwest wind around 7 mph. Chance of precipitation is 50%.

Sunday:

Sunny

Hi 89 °F

Sunny, with a high near 89. North wind around 7 mph.

Sunday Night:

Partly Cloudy

Lo 65 °F

Partly cloudy, with a low around 65. Southeast wind 2 to 7 mph.

Monday:

Chance Rain Showers

Hi 81 °F

A chance of rain showers after 8am. Partly sunny, with a high near 81. Southeast wind 2 to 8 mph. Chance of precipitation is 30%.

Monday Night:

Chance Rain Showers

Lo 62 °F

A chance of rain showers. Mostly cloudy, with a low around 62. Southeast wind 3 to 7 mph. Chance of precipitation is 40%.

Tuesday:

Chance Rain Showers

Hi 81 °F

A chance of rain showers. Partly sunny, with a high near 81. East wind 5 to 9 mph. Chance of precipitation is 30%.

Tuesday Night:

Slight Chance Rain Showers then Partly Cloudy

Lo 62 °F

A slight chance of rain showers before 8pm. Partly cloudy, with a low around 62. East wind 3 to 7 mph.

Wednesday:

Mostly Sunny

Hi 85 °F

Mostly sunny, with a high near 85. East wind 3 to 7 mph.

Wednesday Night:

Partly Cloudy

Lo 66 °F

Partly cloudy, with a low around 66. South wind around 6 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 5pm through Sat 4am

Issued by:
National Weather Service Boston / Norton, MA
Updated Thu Jul 2, 2026 2:49pm EDT

5:00pm

Sunny

99°F
Dew Pt 72°F
Heat Index: 109°F
Wind from W

W 9 mph
Precip: 6%

6:00pm

Clear

97°F
Dew Pt 72°F
Heat Index: 106°F
Wind from W

W 8 mph
Precip: 7%

7:00pm

Mostly Clear

95°F
Dew Pt 72°F
Heat Index: 104°F
Wind from W

W 7 mph
Precip: 7%

8:00pm

Mostly Clear

92°F
Dew Pt 72°F
Heat Index: 100°F
Wind from W

W 6 mph
Precip: 8%

9:00pm

Mostly Clear

88°F
Dew Pt 71°F
Heat Index: 94°F
Wind from W

W 6 mph
Precip: 10%

10:00pm

Mostly Clear

86°F
Dew Pt 71°F
Heat Index: 91°F
Wind from W

W 6 mph
Precip: 13%

11:00pm

Mostly Clear

85°F
Dew Pt 70°F
Heat Index: 90°F
Wind from W

W 6 mph
Precip: 15%

Fri
12:00am

Mostly Clear

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

W 6 mph
Precip: 12%

Fri
1:00am

Mostly Clear

82°F
Dew Pt 70°F
Heat Index: 86°F
Wind from W

W 5 mph
Precip: 9%

Fri
2:00am

Mostly Clear

81°F
Dew Pt 70°F
Heat Index: 85°F
Wind from W

W 5 mph
Precip: 6%

Fri
3:00am

Clear

80°F
Dew Pt 69°F
Heat Index: 83°F
Wind from W

W 5 mph
Precip: 6%

Fri
4:00am

Mostly Clear

79°F
Dew Pt 69°F
Wind from W

W 6 mph
Precip: 6%

Fri
5:00am

Clear

78°F
Dew Pt 69°F
Wind from W

W 6 mph
Precip: 6%

Fri
6:00am

Sunny

78°F
Dew Pt 69°F
Wind from W

W 6 mph
Precip: 6%

Fri
7:00am

Sunny

80°F
Dew Pt 71°F
Heat Index: 83°F
Wind from W

W 6 mph
Precip: 6%

Fri
8:00am

Sunny

83°F
Dew Pt 72°F
Heat Index: 88°F
Wind from NW

NW 6 mph
Precip: 6%

Fri
9:00am

Sunny

87°F
Dew Pt 73°F
Heat Index: 94°F
Wind from NW

NW 7 mph
Precip: 6%

Fri
10:00am

Sunny

91°F
Dew Pt 73°F
Heat Index: 100°F
Wind from NW

NW 7 mph
Precip: 7%

Fri
11:00am

Sunny

94°F
Dew Pt 72°F
Heat Index: 102°F
Wind from W

W 8 mph
Precip: 7%

Fri
12:00pm

Sunny

96°F
Dew Pt 71°F
Heat Index: 104°F
Wind from W

W 8 mph
Precip: 8%

Fri
1:00pm

Mostly Sunny

98°F
Dew Pt 69°F
Heat Index: 104°F
Wind from W

W 9 mph
Precip: 9%

Fri
2:00pm

Sunny

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

W 9 mph
Precip: 10%

Fri
3:00pm

Mostly Sunny

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

W 10 mph
Precip: 9%

Fri
4:00pm

Sunny

101°F
Dew Pt 66°F
Heat Index: 106°F
Wind from W

W 10 mph
Precip: 9%

Fri
5:00pm

Sunny

100°F
Dew Pt 66°F
Heat Index: 104°F
Wind from W

W 10 mph
Precip: 8%

Fri
6:00pm

Mostly Clear

97°F
Dew Pt 67°F
Heat Index: 101°F
Wind from W

W 9 mph
Precip: 8%

Fri
7:00pm

Mostly Clear

95°F
Dew Pt 68°F
Heat Index: 100°F
Wind from W

W 8 mph
Precip: 8%

Fri
8:00pm

Mostly Clear

92°F
Dew Pt 68°F
Heat Index: 96°F
Wind from W

W 7 mph
Precip: 8%

Fri
9:00pm

Mostly Clear

89°F
Dew Pt 68°F
Heat Index: 93°F
Wind from W

W 7 mph
Precip: 10%

Fri
10:00pm

Mostly Clear

86°F
Dew Pt 68°F
Heat Index: 89°F
Wind from W

W 7 mph
Precip: 13%

Fri
11:00pm

Mostly Clear

85°F
Dew Pt 67°F
Heat Index: 88°F
Wind from W

W 6 mph
Precip: 15%

Sat
12:00am

Partly Cloudy

83°F
Dew Pt 67°F
Heat Index: 86°F
Wind from W

W 6 mph
Precip: 14%

Sat
1:00am

Partly Cloudy

81°F
Dew Pt 66°F
Heat Index: 83°F
Wind from W

W 6 mph
Precip: 12%

Sat
2:00am

Mostly Cloudy

79°F
Dew Pt 66°F
Wind from W

W 5 mph
Precip: 11%

Sat
3:00am

Partly Cloudy

78°F
Dew Pt 66°F
Wind from W

W 5 mph
Precip: 11%

Sat
4:00am

Partly Cloudy

77°F
Dew Pt 66°F
Wind from W

W 5 mph
Precip: 12%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 021850
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
250 PM EDT Thu Jul 2 2026

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

&&

.KEY MESSAGES...

- Dangerous prolonged heatwave continues through Sat July 4th.
  Afternoon Heat Indices of 100 to 110 degrees again Friday but
  still 95 to 100+ on Saturday. Little relief at night either.

- Low convective/severe weather probability through tonight
  given the lack of forcing. However, if isolated storms are
  able to develop, they could become severe. The thunderstorm 
  and severe weather potential increases late Friday and/or 
  Saturday ahead of an approaching cold front. 

- Relief from the heat with cooler and more seasonable
  temperatures returning for the first half of next week.

&&

.DISCUSSION...
KEY MESSAGE 1... Dangerous prolonged heatwave continues through
Sat July 4th. Afternoon Heat Indices of 100 to 110 degrees 
again Friday but still 95 to 100+ on Saturday. Little relief at 
night either.

Dangerous heatwave ongoing across New England today and Friday. As 
of 2 PM EDT, Boston (KBOS) has already broken the high temperature 
record today, with 99F recorded a handful of times so far this 
afternoon (previous record was 98F in 1963). Recording 100F here has 
yet to occur, but is certainly within reach over the next couple of 
hours. Time will tell.

925mb temps have been hanging at 28-29C today, and will continue 
through Friday. Center of the ridge in the Carolina Piedmont sinks 
ever so slightly Friday, allowing heights to fall a tad. As a 
result, high temperatures are just a touch "cooler" Friday (not that 
you'll really feel a difference). Dewpoints are still well into the 
70s the whole time, meaning that the heat/humidity combination won't 
have a problem yielding heat indices well into the triple digits 
(100-110F) across most of New England.

Still hot but a bit more uncertainty introduced to Saturday 
based on frontal timing. The spread in 850 mb temps across 
guidance has increased to anywhere between +15C and +19 or +20C.
With westerly downsloping winds and compressional warming ahead
of the front adding a couple of degrees that could mean 
anywhere from near 90 to mid 90s. NBM guidance is probably a 
little overbaked but not by a meaningful degree. It will still 
be hot and dewpoints will still make it feel a good 5 to 10 
degrees warmer than the air temps. So even if many sites do not 
hit exact extreme heat criteria, the prolonged nature of the 
heat plus the holiday outdoor activities mean that the Extreme 
Heat Warning and Heat Advisory for most of the Cape and Islands 
should continue thru Sat.

KEY MESSAGE 2... Low convective/severe weather probability 
through tonight given the lack of forcing. However if isolated 
storms are able to develop they could become severe. The 
thunderstorm and severe weather potential increases late Friday 
and/or Saturday ahead of an approaching cold front.

Cold front is forecast to be in the vicinity of southern New 
England Sat. It will still be hot/humid and there will be more 
than enough shear to organize convection. The limiting factor 
now appears to be lapse rates, generally around 6C/km. So 
guidance is struggling to push CAPE north of 1000 J/kg. It is a 
little long range for some of the CAM guidance, but there is 
everything from little to no convection to fairly widespread 
storms from the RRFS. I have a hard time seeing the heat 
breaking without some showers and storms to clear it out, so 
much of what happens Sat may depend on Fri/Fri night. Once again
primary severe threat would come from damaging winds and 
perhaps some large hail. 

KEY MESSAGE 3...Relief from the heat with cooler and more 
seasonable temperatures returning for the first half of next 
week.

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. Guidance is also 
increasing PoP towards Tue as a weak upper low drifts or opens 
up as it crosses the region. Precip chances remain low 
confidence however, with large spread between the 25th and 75th 
percentile QPF.

&&

.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
Forecaster Confidence Levels...

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

18z TAF Update...

Today through Friday...High confidence.

Mainly VFR conditions into Friday evening. FEW to SCT cumulus at
7000-8000 ft has developed, but the decks have remained shallow.
Capping has kept convection from initiating, and that should
continue through much of this afternoon and evening. Fog/Stratus
development again likely late this evening and overnight for 
terminals across the Cape and Islands. Greater risk for some 
thunderstorms in store for Saturday. 

Westerly winds may gust to 20-25 knots this afternoon with some
SW wind gusts around 25 knots towards the Cape and Islands. 
Another round of westerly 20+ knot gusts will develop again 
during the day Friday.

KBOS Terminal...High confidence in TAF. Thinking gradient remains 
strong enough today to prevent a sea breeze. 

KBDL Terminal...High confidence in TAF.

Outlook /Friday Night through Tuesday/...

Independence Day: VFR. Breezy. Chance SHRA, slight chance TSRA.

Saturday Night through Sunday: VFR. 

Sunday Night: VFR. Slight chance SHRA.

Monday through Monday Night: VFR. Chance SHRA.

Tuesday: VFR. Breezy. Chance SHRA.

&&

.MARINE...
Forecaster Confidence Levels...

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

Today through Friday...High confidence. 

SW winds will gust to 25 knots at times today and long fetch will 
result in 3 to 5 foot across our southern waters. Therefore...we 
have continued small craft headlines for our southern waters
until 6 PM EDT this evening. Winds should diminish a tad and 
turn to more of a westerly component tonight into 
Friday...allowing us to drop the small craft headlines by that 
time.

Outlook /Friday Night through Tuesday/...

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

Saturday Night: Winds less than 25 kt. Seas locally approaching
5 ft. Chance of rain showers. 

Sunday: Winds less than 25 kt. 

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

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

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

&&

.CLIMATE...
Record High Temperatures:

July 2: 
KBOS: 98/1963
KBDL: 99/1966
KPVD: 98/1941
KORH: 97/1901 

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 2:
KBOS: 76/2002
KBDL: 73/2018
KPVD: 75/1941
KORH: 73/1963

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

July 5:
KBOS: 81/1999
KBDL: 77/1999
KPVD: 78/1999
KORH: 73/1999

&&

.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 until 11 PM EDT this evening for MAZ006-007-
     013>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 until 11 PM EDT this evening for RIZ001>008.
MARINE...Small Craft Advisory until 6 PM EDT this evening for 
     ANZ231>235-237.
     Small Craft Advisory until 1 AM EDT Friday for ANZ254>256.

&&

$$

DISCUSSION...Boatman/Legro
AVIATION...Boatman
MARINE...Boatman

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