Old Res Weather

Current Conditions [‒] Current Conditions [+]

35.1°F Colder than last hour.

1.7°C

Cold

Clear

Overnight: Lo 28 °F

Tuesday: Hi 49 °F

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

Humidity: 90%

UV Index: 0.0 None

Air Quality Index: 34

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 Monday: 0.00 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 0 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
Overnight, Tuesday, & Tuesday Night through Monday

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Tue Apr 21, 2026 3:59am EDT

Overview:

- Mostly sunny and dry today gives way to overcast later tonight, with scattered rain showers Wed as low pressure passes to our south and west.

- Slow-moving upper-level low over Atlantic Canada maintains cooler unsettled conditions Thursday through the weekend. Better chances for showers on Thursday before trending drier for Friday into the weekend.

Overnight:

Partly Cloudy

Lo 28 °F

Partly cloudy, with a low around 28. North wind around 5 mph.

Tuesday:

Sunny

Hi 49 °F

Sunny, with a high near 49. Southeast wind 3 to 7 mph.

Tuesday Night:

Mostly Cloudy

Lo 34 °F

Mostly cloudy, with a low around 34. South wind around 8 mph.

Wednesday:

Light Rain Likely

Hi 46 °F

Rain likely. Cloudy, with a high near 46. South wind 7 to 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

Wednesday Night:

Chance Light Rain

Lo 40 °F

A chance of rain. Mostly cloudy, with a low around 40. South wind 3 to 7 mph. Chance of precipitation is 30%.

Thursday:

Slight Chance Light Rain then Slight Chance Rain Showers

Hi 56 °F

A slight chance of rain before 8am, then a slight chance of rain showers between noon and 4pm. Partly sunny, with a high near 56. West wind 3 to 10 mph. Chance of precipitation is 20%.

Thursday Night:

Partly Cloudy

Lo 39 °F

Partly cloudy, with a low around 39. Northwest wind 5 to 9 mph.

Friday:

Mostly Sunny

Hi 56 °F

Mostly sunny, with a high near 56. North wind around 7 mph.

Friday Night:

Partly Cloudy

Lo 37 °F

Partly cloudy, with a low around 37. Northeast wind 2 to 6 mph.

Saturday:

Mostly Sunny

Hi 56 °F

Mostly sunny, with a high near 56. Northeast wind 3 to 7 mph.

Saturday Night:

Slight Chance Rain Showers

Lo 39 °F

A slight chance of rain showers. Mostly cloudy, with a low around 39. South wind around 6 mph.

Sunday:

Slight Chance Rain Showers then Partly Sunny

Hi 57 °F

A slight chance of rain showers before 7am. Partly sunny, with a high near 57. Northeast wind 3 to 8 mph.

Sunday Night:

Slight Chance Rain Showers

Lo 40 °F

A slight chance of rain showers between 7pm and 2am. Mostly cloudy, with a low around 40. East wind around 6 mph.

Monday:

Partly Sunny

Hi 59 °F

Partly sunny, with a high near 59. Northeast wind 3 to 8 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 5am through Wed 4pm

Issued by:
National Weather Service Boston / Norton, MA
Updated Tue Apr 21, 2026 3:59am EDT

5:00am

Partly Cloudy

29°F
Dew Pt 20°F
Wind Chill: 24°F
Wind from N

N 5 mph
Precip: 0%

6:00am

Sunny

28°F
Dew Pt 20°F
Wind Chill: 23°F
Wind from N

N 5 mph
Precip: 0%

7:00am

Sunny

30°F
Dew Pt 21°F
Wind Chill: 26°F
Wind from N

N 3 mph
Precip: 0%

8:00am

Sunny

34°F
Dew Pt 19°F
Wind Chill: 31°F
Wind from N

N 3 mph
Precip: 0%

9:00am

Sunny

37°F
Dew Pt 17°F
Wind Chill: 34°F
Wind from N

N 3 mph
Precip: 0%

10:00am

Sunny

40°F
Dew Pt 15°F
Wind Chill: 38°F
Wind from N

N 3 mph
Precip: 0%

11:00am

Sunny

41°F
Dew Pt 13°F
Wind Chill: 39°F
Wind from SW

SW 3 mph
Precip: 0%

12:00pm

Sunny

43°F
Dew Pt 13°F
Wind Chill: 40°F
Wind from SW

SW 5 mph
Precip: 0%

1:00pm

Mostly Sunny

46°F
Dew Pt 12°F
Wind Chill: 44°F
Wind from S

S 5 mph
Precip: 0%

2:00pm

Mostly Sunny

47°F
Dew Pt 12°F
Wind Chill: 44°F
Wind from SE

SE 6 mph
Precip: 0%

3:00pm

Mostly Sunny

48°F
Dew Pt 13°F
Wind Chill: 45°F
Wind from SE

SE 6 mph
Precip: 1%

4:00pm

Mostly Sunny

48°F
Dew Pt 14°F
Wind Chill: 45°F
Wind from SE

SE 7 mph
Precip: 2%

5:00pm

Mostly Sunny

47°F
Dew Pt 15°F
Wind Chill: 44°F
Wind from SE

SE 7 mph
Precip: 2%

6:00pm

Partly Cloudy

45°F
Dew Pt 16°F
Wind Chill: 41°F
Wind from SE

SE 8 mph
Precip: 2%

7:00pm

Partly Cloudy

44°F
Dew Pt 18°F
Wind Chill: 39°F
Wind from SE

SE 8 mph
Precip: 3%

8:00pm

Mostly Cloudy

42°F
Dew Pt 19°F
Wind Chill: 37°F
Wind from S

S 8 mph
Precip: 3%

9:00pm

Mostly Cloudy

39°F
Dew Pt 25°F
Wind Chill: 33°F
Wind from S

S 8 mph
Precip: 4%

10:00pm

Mostly Cloudy

38°F
Dew Pt 26°F
Wind Chill: 32°F
Wind from S

S 8 mph
Precip: 4%

11:00pm

Mostly Cloudy

37°F
Dew Pt 26°F
Wind Chill: 32°F
Wind from S

S 7 mph
Precip: 5%

Wed
12:00am

Mostly Cloudy

36°F
Dew Pt 27°F
Wind Chill: 30°F
Wind from S

S 8 mph
Precip: 6%

Wed
1:00am

Mostly Cloudy

36°F
Dew Pt 28°F
Wind Chill: 30°F
Wind from S

S 8 mph
Precip: 7%

Wed
2:00am

Mostly Cloudy

36°F
Dew Pt 28°F
Wind Chill: 30°F
Wind from S

S 8 mph
Precip: 0%

Wed
3:00am

Mostly Cloudy

36°F
Dew Pt 29°F
Wind Chill: 30°F
Wind from S

S 7 mph
Precip: 2%

Wed
4:00am

Mostly Cloudy

36°F
Dew Pt 30°F
Wind Chill: 30°F
Wind from S

S 7 mph
Precip: 5%

Wed
5:00am

Mostly Cloudy

36°F
Dew Pt 31°F
Wind Chill: 30°F
Wind from S

S 7 mph
Precip: 7%

Wed
6:00am

Slight Chance Light Rain

36°F
Dew Pt 32°F
Wind Chill: 30°F
Wind from S

S 7 mph
Precip: 22%

Wed
7:00am

Chance Light Rain

36°F
Dew Pt 33°F
Wind Chill: 30°F
Wind from S

S 8 mph
Precip: 37%

Wed
8:00am

Chance Light Rain

39°F
Dew Pt 34°F
Wind Chill: 33°F
Wind from S

S 8 mph
Precip: 53%
Rain: 0.01 in

Wed
9:00am

Light Rain Likely

39°F
Dew Pt 35°F
Wind Chill: 33°F
Wind from S

S 9 mph
Precip: 55%
Rain: 0.01 in

Wed
10:00am

Light Rain Likely

40°F
Dew Pt 36°F
Wind Chill: 34°F
Wind from S

S 9 mph
Precip: 58%
Rain: 0.01 in

Wed
11:00am

Light Rain Likely

41°F
Dew Pt 36°F
Wind Chill: 35°F
Wind from S

S 10 mph
Precip: 61%
Rain: 0.01 in

Wed
12:00pm

Light Rain Likely

42°F
Dew Pt 36°F
Wind Chill: 36°F
Wind from S

S 9 mph
Precip: 61%
Rain: 0.01 in

Wed
1:00pm

Light Rain Likely

43°F
Dew Pt 37°F
Wind Chill: 38°F
Wind from S

S 9 mph
Precip: 60%
Rain: 0.01 in

Wed
2:00pm

Light Rain Likely

44°F
Dew Pt 37°F
Wind Chill: 39°F
Wind from S

S 9 mph
Precip: 60%
Rain: 0.01 in

Wed
3:00pm

Chance Light Rain

44°F
Dew Pt 37°F
Wind Chill: 39°F
Wind from S

S 8 mph
Precip: 52%
Rain: 0.01 in

Wed
4:00pm

Chance Light Rain

45°F
Dew Pt 37°F
Wind Chill: 41°F
Wind from S

S 8 mph
Precip: 44%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 210708
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
308 AM EDT Tue Apr 21 2026

.WHAT HAS CHANGED...
The risk for fire weather concerns Thursday now looks limited, 
as cloud cover and potential for showers could develop during 
the daytime hours. 

&&

.KEY MESSAGES...

- Mostly sunny and dry today gives way to overcast later
  tonight, with scattered rain showers Wed as low pressure
  passes to our south and west. 

- Slow-moving upper-level low over Atlantic Canada maintains
  cooler unsettled conditions Thursday through the weekend.
  Better chances for showers on Thursday before trending drier
  for Friday into the weekend.

&&

.DISCUSSION...
KEY MESSAGE 1...Mostly sunny and dry today gives way to overcast 
later tonight, with scattered rain showers Wed as low pressure 
passes to our south and west. 

Midlevel flow pattern begins to (briefly) deamplify thru Wed. 
Some pesky cloud cover across the Cape and Islands moves 
offshore early this morning; expecting a mostly sunny rest of 
the day today with good mixing allowing for dewpoints to plummet
into the single digits to lower teens in the interior and RHs 
falling to around 20 percent. Seabreezes develop near the coasts
which will keep temps cooler in the 40s, but should reach into 
the low to mid 50s away from the coast, coming out of a chilly 
overnight. 

Cloud cover then increases tonight from west to east as a low- 
amplitude shortwave in a fast WNW flow brings an associated weak
low pressure and warm frontal boundary into Southern New 
England. Looks to be a decent period of isentropic ascent which 
could allow for warm frontal precip to break out as soon as the 
Wednesday pre-dawn hours in interior western New England; an 
earlier arrival of precip would open up the door for light rain 
showers to mix with wet snowflakes through dynamic/wet-bulbing 
effects with perhaps some coatings on non-paved surfaces. It 
leads to a rather gray, dreary Wed with periods of rain showers 
and modest S winds. Despite modest warm advection, temps on Wed 
could struggle to get out of the 40s with reduced insolation and
some of the precip lost to wet-bulbing, leading to cooler 
temps. QPF amts are on the light side - more of a nuisance than 
anything significant or impactful. Cloud cover should begin to 
decrease somewhat by Wed night but considerable cloudiness could
linger for eastern MA/RI.

KEY MESSAGE 2...Slow-moving upper-level low over Atlantic Canada 
maintains cooler unsettled conditions Thursday through the weekend. 
Better chances for showers on Thursday before trending drier for 
Friday into the weekend.

An increasingly blocky mid-level pattern downstream of us in the 
North Atlantic then allows for the trough currently moving offshore 
to develop into a broad closed circulation near the Canadian 
Maritimes. The western extent of this anticipated closed low seems 
poised to drive our weather pattern for late in the week and into 
the weekend, with a cooler maritime-polar flow governing our 
weather. This will also mean a period of temps running near to 
slightly cooler than late-April normals.

What was previously looking like a potential dry and gusty day 
Thursday now could feature variable amts of cloudiness with more
east and less west and at least isolated to scattered diurnal- 
instability showers. Progged wet- bulb-zero heights are 
extremely low at around 3500 ft, which suggests showers would be
accompanied by graupel. Guidance sources more bullish on 
shallow instability (e.g. NAM) even suggest potential for low-
topped storms with lightning and small hail in strongest of 
cores, best chance over the eastern half of Southern New 
England, with a pretty potent shortwave digging southward.
Something to consider in later forecasts as we get into the
mesoscale NWP forecast horizon. Areas in western New England 
probably have the best chance to mix down lower dewpoints but 
was hesistant to bring dewpoints too low in case the upper 
trough continues to course- correct westward. 

Otherwise, Fri into the weekend are unsettled with a cool 
pocket of air aloft, but generally drier. Expect a similar sky- 
cover picture in this period, with diurnally driven cumulus/fair
weather clouds with less of them during the evening. As sfc 
ridging looks to build in from the west on the weekend, this 
could bring a modest onshore flow to eastern coastal areas. The 
upshot is that the retrograding Maritimes low should suppress 
storminess coming out of the Northern Plains/Gt Lakes to our 
south and west.

&&

.AVIATION /06Z TUESDAY THROUGH SATURDAY/...
Forecaster Confidence Levels...

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

06z TAF Update:

Through 12z Tuesday: High confidence. 

Mainly VFR, though BKN low-end VFR/periods MVFR for the Cape
airports and periods of unrestricted-visby -SHRA continue thru
about 10z. N winds 5-10 kt, light to calm interior airports. 

Today: High confidence. 

VFR. Light NE winds to shift to southerly 5-10 kt, with
SE seabreezes along the eastern MA and RI coasts starting 
around 15-17z. 

Tonight and Wednesday: High confidence overall, though moderate
on timing.

VFR with initial high clouds lowering and thickening thru first
half of the night. Warm-frontal precip breaks out around 
~07-10z Wed in western New England, and while mainly rain 
predominates, it could mix with wet snowflakes for higher 
terrain locations especially if timing is on the earlier end of 
that window. Precip then spreads further east thru 10-15z as
rain showers. Arrival of precip brings ceilings dropping to 
mainly MVFR (with intervals IFR). Sub-VFR ceilings beginning to
slowly improve for western terminals after 22z but probably
takes until Wed night before more significant improvement
develops.

SE to S winds 5-10 kt, though speeds could trend lighter on Wed
once precip arrives.

KBOS Terminal...High Confidence in TAF. SE seabreezes could 
develop as soon as 14z but is more likely around 15-16z.

KBDL Terminal... High Confidence in TAF.

Outlook /Wednesday Night through Saturday/...

Wednesday Night: Mainly VFR, with local IFR possible. Slight
chance RA.

Thursday: VFR. Breezy. Slight chance SHRA.

Thursday Night through Friday Night: VFR. 

Saturday: VFR. Slight chance SHRA.

&&

.MARINE...
Forecaster Confidence Levels...

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

Winds and seas remain below SCA criterion today and tonight.
Light northerly winds turn SE around 5-10 kt today, and become
southerly around 10-15 kt tonight. Outside chance at SCA
southerly gusts around 20 kt for Wed on southern waters, but 
seems marginal for headlines given scattered showers limiting 
degree of mixing. Seas 4 ft or less all waters. Some brief/local
reduction in visby possible in scattered showers Wed but
probably not persistent.

Outlook /Wednesday Night through Saturday/...

Wednesday Night: Winds less than 25 kt. Seas locally
approaching 5 ft. Slight chance of rain. 

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

Thursday Night through Friday Night: Winds less than 25 kt. 

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

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...None.

&&

$$

DISCUSSION...Loconto
AVIATION...Loconto
MARINE...Loconto

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