Old Res Weather
Lexington, Massachusetts, USA
- Clear
-
35.1°F / 1.7°C
-
32.4°F
- 90%
- Calm, 10-min avg: Calm, gust: None
-
- 10 miles
- 0.01 in
- $VPuv None
Current Conditions [‒] Current Conditions [+]
35.1°F
1.7°C
Cold
Clear
Overnight: Lo 62 °F
Wednesday: Hi 85 °F
Dew Point:
32.4°F
Humidity: 90%
UV Index: 0.0 None
Barometer:
mb
Rain Rate: 0.00 in/hr
Rain Today: 0.01 in
Rain Tuesday: 0.00 in
Visibility: 10 miles
Wind:
Now: Calm
Avg: Calm
Gusts: 0 mph
Forecast [‒] Forecast [+]
NWS Weather Forecast -
Overnight,
Wednesday,
&
Wednesday Night
through
Tuesday
Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Wed Jun 10, 2026 1:23am EDT
Overview:
- Dry through the rest of today and tonight before the risk for showers and thunderstorms returns Wednesday afternoon/evening.
- Diurnal showers and thunderstorms possible Wednesday through Friday. Above normal temperatures peaking Thursday into Friday.
- Warm conditions with lower humidity throughout this weekend. Uncertainty remains high regarding potential rain showers for Saturday, and again early next week.
Overnight:
Partly Cloudy
Lo 62 °F
Partly cloudy, with a low around 62. Southwest wind around 7 mph.
Wednesday:
Partly Sunny
Hi 85 °F
Partly sunny, with a high near 85. Southwest wind 6 to 12 mph.
Wednesday Night:
Chance Showers And T-Storms then Patchy Fog
Lo 64 °F
A chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers and thunderstorms between 11pm and midnight, then patchy fog and a chance of showers and thunderstorms between midnight and 3am, then patchy fog and a slight chance of rain showers. Mostly cloudy, with a low around 64. Southwest wind 6 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Thursday:
Patchy Fog then Chance Showers And T-Storms
Hi 90 °F
Patchy fog before 7am, then a chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. West wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Thursday Night:
Chance Showers And T-Storms then Mostly Cloudy
Lo 66 °F
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 66. Northeast wind around 5 mph. Chance of precipitation is 30%.
Friday:
Slight Chance Rain Showers then Slight Chance Showers And T-Storms
Hi 85 °F
A slight chance of rain showers between 11am and 2pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 85. Northeast wind 2 to 8 mph. Chance of precipitation is 20%.
Friday Night:
Slight Chance Showers And T-Storms
Lo 61 °F
A slight chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. East wind 3 to 7 mph. Chance of precipitation is 30%.
Saturday:
Chance Rain Showers
Hi 85 °F
A chance of rain showers before 5pm. Partly sunny, with a high near 85. North wind 3 to 7 mph. Chance of precipitation is 30%.
Saturday Night:
Partly Cloudy
Lo 63 °F
Partly cloudy, with a low around 63. West wind around 6 mph.
Sunday:
Sunny
Hi 90 °F
Sunny, with a high near 90. West wind 3 to 9 mph.
Sunday Night:
Partly Cloudy
Lo 65 °F
Partly cloudy, with a low around 65. Southwest wind 5 to 9 mph.
Monday:
Chance Rain Showers
Hi 85 °F
A chance of rain showers after 7am. Mostly sunny, with a high near 85. Southwest wind 5 to 9 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. Northwest wind 5 to 8 mph. Chance of precipitation is 40%.
Tuesday:
Chance Rain Showers
Hi 81 °F
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South wind 5 to 8 mph.
NWS Hourly Forecast -
Today 4am through Thu 3pm
Issued by:
National Weather Service Boston / Norton, MA
Updated Wed Jun 10, 2026 1:23am EDT
4:00am
Dew Pt 51°F
SW 7 mphPrecip: 0%
5:00am
Dew Pt 51°F
SW 6 mphPrecip: 0%
6:00am
Dew Pt 53°F
SW 6 mphPrecip: 0%
7:00am
Dew Pt 55°F
SW 6 mphPrecip: 0%
8:00am
Dew Pt 57°F
SW 6 mphPrecip: 1%
9:00am
Dew Pt 59°F
SW 7 mphPrecip: 1%
10:00am
Dew Pt 61°F
SW 7 mphPrecip: 2%
11:00am
Dew Pt 62°F
SW 8 mphPrecip: 2%
12:00pm
Dew Pt 63°F
Heat Index: 82°F
SW 9 mphPrecip: 2%
1:00pm
Dew Pt 63°F
Heat Index: 83°F
SW 9 mphPrecip: 4%
2:00pm
Dew Pt 64°F
Heat Index: 83°F
SW 10 mphPrecip: 5%
3:00pm
Dew Pt 64°F
Heat Index: 83°F
SW 10 mphPrecip: 6%
4:00pm
Dew Pt 65°F
Heat Index: 84°F
SW 10 mphPrecip: 8%
5:00pm
Dew Pt 65°F
Heat Index: 83°F
SW 12 mphPrecip: 9%
6:00pm
Dew Pt 65°F
SW 10 mphPrecip: 12%
7:00pm
Dew Pt 65°F
S 10 mphPrecip: 13%
8:00pm
Dew Pt 64°F
S 9 mphPrecip: 39%
Rain: 0.01 in
9:00pm
Dew Pt 65°F
S 8 mphPrecip: 37%
Rain: 0.01 in
10:00pm
Dew Pt 65°F
SW 8 mphPrecip: 37%
Rain: 0.01 in
11:00pm
Dew Pt 64°F
SW 7 mphPrecip: 41%
Rain: 0.02 in
12:00am
Dew Pt 65°F
S 7 mphPrecip: 40%
Rain: 0.02 in
1:00am
Dew Pt 64°F
SW 6 mphPrecip: 37%
Rain: 0.02 in
2:00am
Dew Pt 64°F
S 6 mphPrecip: 28%
3:00am
Dew Pt 64°F
S 6 mphPrecip: 21%
4:00am
Dew Pt 64°F
SW 6 mphPrecip: 17%
5:00am
Dew Pt 64°F
SW 6 mphPrecip: 11%
6:00am
Dew Pt 64°F
SW 6 mphPrecip: 8%
7:00am
Dew Pt 65°F
SW 6 mphPrecip: 7%
8:00am
Dew Pt 67°F
W 6 mphPrecip: 5%
9:00am
Dew Pt 69°F
W 6 mphPrecip: 3%
10:00am
Dew Pt 69°F
Heat Index: 84°F
W 7 mphPrecip: 0%
11:00am
Dew Pt 69°F
Heat Index: 87°F
W 7 mphPrecip: 3%
12:00pm
Dew Pt 69°F
Heat Index: 89°F
W 7 mphPrecip: 7%
1:00pm
Dew Pt 69°F
Heat Index: 91°F
W 7 mphPrecip: 10%
2:00pm
Dew Pt 69°F
Heat Index: 92°F
W 7 mphPrecip: 37%
3:00pm
Dew Pt 69°F
Heat Index: 92°F
NW 7 mphPrecip: 35%
Rain: 0.01 in
FORECAST DISCUSSION
Area Forecast Discussion
for Boston / Norton, MA
000
FXUS61 KBOX 100603
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
203 AM EDT Wed Jun 10 2026
.WHAT HAS CHANGED...
Showers and storms may return Wednesday evening as a warm front
approaches the region. No major changes otherwise.
&&
.KEY MESSAGES...
- Dry through the rest of today and tonight before the risk for
showers and thunderstorms returns Wednesday afternoon/evening.
- Diurnal showers and thunderstorms possible Wednesday through
Friday. Above normal temperatures peaking Thursday into Friday.
- Warm conditions with lower humidity throughout this weekend.
Uncertainty remains high regarding potential rain showers for
Saturday, and again early next week.
&&
.DISCUSSION...
KEY MESSAGE 1...Dry through the rest of today and tonight before
the risk for showers and thunderstorms returns Wednesday
afternoon/evening.
High pressure south of Long Island continues moving off to the
south and east as the ridge aloft starts receding from the
northeast US. Some shortwave disturbances will then start to
make their way across the region as its influence wanes, which
will aid in the return of some showers and storms. Lows tonight
will generally be in the upper 50s and low 60s as light SW winds
continue for most; winds to 15 kt will be possible through
tonight across the Cape and Islands.
A warm front will push through southern New England Wednesday
evening/night and showers and thunderstorms will likely
accompany it. With regards to severity, not seeing much that
would scream a severe weather threat with these possible storms.
CSU ML guidance has about a 5-15 percent chance for severe
winds in western MA and CT, along with part of central MA for
Wednesday. Winds also shift more southerly going into Wednesday
afternoon/evening, helping bring in more moisture from the
south. PWATs may approach 2.0", and NAEFS guidance indicates
that values Wednesday into Thursday morning may be around 2-3
standard deviations above normal. Details regarding the coverage
of these showers and storms still need to be ironed out, but
the latest guidance is favoring the heavier rainfall remaining
to our north and south. With the moist airmass overhead, some
spots with locally heavier rainfall can't be ruled out, but much
can still change between now and when this front comes through.
Rainfall amounts at this time may only reach around 0.10-0.20".
Hot and humid conditions will be left in the wake of this warm
frontal passage.
KEY MESSAGE 2...Diurnal showers and thunderstorms possible
Wednesday through Friday. Above normal temperatures peaking
Thursday into Friday.
High pressure towards the southeast USA will push heat and
humidity into southern New England later this week. Will
likely need to consider heat headlines with later forecasts.
Uncertainty remains for how quickly and how far west a backdoor
cold front can make it Friday. This would have implications for
heat headlines across eastern MA as well as RI. Should this
front be delayed from its current timing, then more of southern
New England would be at risk for headlines using the lower 2-day
threshold.
Portions of the CT River Valley in MA and CT could see heat
index values around 100F, while more of our region should be
well into the 90s both Thursday and Friday. Coastal areas of MA
and RI are expected to be cooler Friday, but the timing still
needs to be ironed out.
The increased heat and humidity will also set the stage for
possible showers and thunderstorms later this week. There is
not much concern for the threat of widespread severe
thunderstorms at this time due to the lack of wind shear and
weak forcing mechanisms. The western half of southern New
England would have the higher risk, which is not unusual for
this time of year.
KEY MESSAGE 3...Warm conditions with lower humidity throughout
this weekend. Uncertainty remains high regarding potential
rain showers for Saturday, and again early next week.
Anticipating the passage of a couple fronts Saturday and Sunday.
The main impact will be lower humidity, with Sunday anticipated
the drier of the two. Lingering showers possible Saturday, but
plenty of dry hours too. Some guidance members indicated a weak
low pressure passing by towards the south coast of New England
sometime Monday into Tuesday. Kept a mention of showers in the
forecast, but confidence in these details is low.
&&
.AVIATION /06Z WEDNESDAY THROUGH SUNDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Tonight...High confidence.
VFR conditions continue through much of today. Some MVFR to
localized IFR conditions may overspread parts of the region from
southwest to northeast by early this evening along with a few
showers. Showers become more likely tonight, but coverage is
still relatively uncertain, with western teminals most likely to
see showers and possibly a rumble of thunder.
Lingering gusts across the Cape/Island tonight into the early
morning hours, but relatively calm eslewhere. Otheriwse, gusts
to around 20 kt may make a return by the mid/late morning hours.
SW winds will persist through tonight and into Wednesday before
shifting more S Wednesday night in the wake of a passing warm
front.
Thursday Morning...Moderate confidence.
Generally MVFR/IFR conditions. Some areas could be on the cusp
of LIFR conditions as any lingering showers push offshore. SW
winds continue through the morning hours, generally around 10
kts once showers move out.
KBOS Terminal...High confidence in trends. Moderate confidence
is timing.
Some uncertainty remains if -SHRA will make it to the terminal.
Included a PROB30 at this time.
KBDL Terminal...High confidence in trends. Moderate confidence
is timing.
Some uncertainty remains in the exact timing of -SHRA, as well
as if -TSRA is possible later in the overnight hours.
Outlook /Thursday Night through Sunday/...
Thursday Night: VFR. Slight chance SHRA.
Friday: Mainly VFR, with local MVFR possible. Chance SHRA,
chance TSRA.
Friday Night: VFR. Chance SHRA, slight chance TSRA.
Saturday: VFR. Slight chance SHRA.
Saturday Night through Sunday: VFR.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Thursday Morning...High confidence.
Winds shift more SW then SSW Wednesday afternoon, sustained at
around 15-20 kt with gusts remaining just below Small Craft
criteria. Seas generally 2-4 ft through Wednesday night, though
the southern outer waters may start to creep to 5 ft heading
into Thursday morning.
Outlook /Thursday Night through Sunday/...
Thursday Night: Winds less than 25 kt. Seas up to 5 ft. Chance
of rain showers, slight chance of thunderstorms.
Friday: Winds less than 25 kt. Seas locally approaching 5 ft.
Friday Night through Saturday: Winds less than 25 kt. Slight
chance of rain showers.
Saturday Night through Sunday: Winds less than 25 kt.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...Heat Advisory from noon Thursday to 8 PM EDT Friday for
CTZ002>004.
MA...Heat Advisory from noon Thursday to 8 PM EDT Friday for MAZ002-
003-008>011.
RI...None.
MARINE...None.
&&
$$
DISCUSSION...Belk/Hrencecin
AVIATION...McMinn
MARINE...McMinn
Radar [‒] Radar [+]
Radar images courtesy Weather Underground / Intellicast.
Satellite [‒] Satellite [+]
Satellite images courtesy Weather Underground / Intellicast.
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UV Forecast [‒] UV Forecast [+]
UV Index forecast from the Environmental Protection Agency
UV Index forecast high for today: 9 Very High
Current (Measured): 0.0 None
Precipitation [‒] Precipitation [+]
Note: Rain measured automatically by weather station. Rain totals do not necessarily include melted frozen precipitation.
For more accurate, manually measured rain data, see the Local Precip Data page.
0.00 in
Rain Rate (/hr):
0.00 in
Rain Last 60 min:
0.01 in
Rain Today:
0.00 in
Tuesday:
0.01 in
June:
1.26 in
2026
Daily Extremes [‒] Daily Extremes [+]
1:17pm
36.1°F
High today:
12:00am
25.2°F
Low today:
2:28pm
30.4°F
High Tuesday:
7:11am
16.2°F
Low Tuesday:
12:00am
25.2°F
Low wind chill today:
7:11am
16.2°F
Low wind chill Tuesday:
1:17pm
33.3°F
High dew pt today:
11:56pm
20.7°F
High dew pt Tuesday:
None
Wind gust today:
None
Wind gust Tuesday:
Alerts / Advisories [‒] Alerts / Advisories [+]
No alerts/warnings active for Southeast Middlesex County.
Sun / Moon [‒] Sun / Moon [+]
First Light:
6:11am
Sunrise:
6:39am
Sunset:
5:19pm
Twilight ends:
5:47pm
Daylight length:
10 hours 39 minutes
Phase:
Waning Crescent (82%)
Moon set:
8:18am
Moon rise:
9:38pm