Weston, Massachusetts, USA
52.5°F
11.4°C
Cool
Clear
Overnight: Lo 52 °F
Tuesday: Hi 79 °F
Dew Point: 50.2°F
Humidity: 92%
Barometer:
mb
Rain Rate: 0.00 in/hr
Rain Today: 0.00 in
Rain Monday: 0.00 in
Visibility: 10 miles
Wind:
Now: Calm
Avg: Calm
Gusts: 0 mph
Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Mon May 13, 2024 7:40pm EDT
A warm front brings widely scattered showers tonight followed by much warm weather tomorrow, a couple of showers and/or an isolated thundershower are possible in the interior Tuesday afternoon. Unsettled weather Wednesday through the weekend with more clouds than sun and periods of rain. Seasonable temperatures through the upcoming weekend.
Chance Rain Showers
Lo 52 °F
A chance of rain showers before 4am. Mostly cloudy, with a low around 52. South wind around 7 mph. Chance of precipitation is 30%.
Mostly Sunny
Hi 79 °F
Mostly sunny, with a high near 79. Southwest wind 7 to 15 mph.
Chance Rain Showers
Lo 59 °F
A chance of rain showers after 8pm. Mostly cloudy, with a low around 59. South wind 7 to 14 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Chance Rain Showers
Hi 70 °F
A chance of rain showers. Cloudy, with a high near 70. South wind 7 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Chance Rain Showers
Lo 54 °F
A chance of rain showers. Mostly cloudy, with a low around 54. East wind 5 to 9 mph. Chance of precipitation is 50%.
Chance Rain Showers
Hi 65 °F
A chance of rain showers. Mostly cloudy, with a high near 65. Northeast wind 7 to 15 mph. Chance of precipitation is 40%.
Chance Rain Showers
Lo 53 °F
A chance of rain showers. Mostly cloudy, with a low around 53. Northeast wind around 13 mph. Chance of precipitation is 30%.
Slight Chance Rain Showers
Hi 66 °F
A slight chance of rain showers. Mostly cloudy, with a high near 66. Northeast wind around 14 mph.
Chance Rain Showers
Lo 52 °F
A chance of rain showers. Mostly cloudy, with a low around 52. Northeast wind 8 to 12 mph. Chance of precipitation is 30%.
Chance Rain Showers
Hi 62 °F
A chance of rain showers. Mostly cloudy, with a high near 62. Northeast wind 8 to 12 mph. Chance of precipitation is 50%.
Chance Rain Showers
Lo 52 °F
A chance of rain showers. Mostly cloudy, with a low around 52. Northeast wind around 10 mph. Chance of precipitation is 50%.
Chance Rain Showers
Hi 69 °F
A chance of rain showers. Partly sunny, with a high near 69. Northeast wind 8 to 12 mph. Chance of precipitation is 30%.
Chance Rain Showers
Lo 53 °F
A chance of rain showers. Partly cloudy, with a low around 53. South wind 8 to 12 mph. Chance of precipitation is 30%.
Slight Chance Rain Showers
Hi 73 °F
A slight chance of rain showers. Mostly sunny, with a high near 73. Northeast wind 8 to 12 mph.
Issued by:
National Weather Service Boston / Norton, MA
Updated Mon May 13, 2024 7:40pm EDT
000 FXUS61 KBOX 140135 AFDBOX Area Forecast Discussion National Weather Service Boston/Norton MA 935 PM EDT Mon May 13 2024 .SYNOPSIS... A warm front brings widely scattered showers tonight followed by much warm weather tomorrow, a couple of showers and/or an isolated thundershower are possible in the interior Tuesday afternoon. Unsettled weather Wednesday through the weekend with more clouds than sun and periods of rain. Seasonable temperatures through the upcoming weekend. && .NEAR TERM /THROUGH TUESDAY/... 930 PM Update... Shower activity attempting to encroach on western MA and eastern NY is having a tough time reaching the surface with dewpoint depressions between 10-15F. Dewpoint depressions will shrink overnight which will likely allow some light shower activity to skirt north of the MA Turnpike before daybreak. Cloud cover is significantly less than forecast across the CT River Valley per satellite, which may aid a bit in dewpoint depressions collapsing over the next few hours, though S/SW winds are just strong enough to stave off significant radiational cooling. We'll see if this translates to slightly more widespread shower activity, but for now, kept forecast PoPs as is. Previous Update... Update: 3PM Overall a stunner of an afternoon with many enjoying a sun-filled afternoon while others are stuck beneath diurnal cumulus which developed along the sea-breeze boundary. As these diurnal clouds wane this afternoon, mid and high clouds increase from the west ahead of a warm front. Stepping outside this evening should enjoy temperatures in the low 60s and falling into the upper 50s shortly after sunset. 850mb jet advects higher PWATs between 1.0 and 1.3 inch tonight and with the warm front passing through a few showers possible, though the best forcing looks to be limited to northern Massachusetts and points north into Vermont & New Hampshire. No washouts are expected, QPF is in the neighborhood of a few hundredths of an inch. South to southwest winds overnight are less than 10 mph. Nighttime lows are on either side of 50 degrees. && .SHORT TERM /TUESDAY NIGHT THROUGH 6 PM TUESDAY/... Update: 3PM A warm and summer-like head is on tap! With the passage of the warm front Monday night, we are placed in the warm sector. Clouds from overnight do linger across northern Massachusetts, but will give way to partly sunny skies and fairly mild temperatures. Deep southwest flow usher in warmer and a more humid air mass. 925mb temperatures climb to +14C to +18C and BUFKIT shows a well mixed boundary layer tomorrow, highs will easily climb into the middle 70s away from the coast. It's not out of the question a few spots like the Merrimack and Connecticut River Valley top out around 80 degrees. Back to the coast, the southwest flow is an onshore wind for coastal Rhode Island and southeast Massachusetts, here the temperature Tuesday afternoon only reaches the upper 60s and low 70s. Southwest winds become gusty as well, 15 to 25 mph. Shower are limited to northwest Massachusetts during the late afternoon where the best moisture and instability are located. HREF ensembles have roughly 500-1000 units of MUCAPE along and west of the Berkshires, so it's possible there may be an iso. non severe thunderstorm. Rain chances expand throughout the overnight hours with a mid-level trough and frontal boundary approaching from the west. Winds ease overnight becoming more south less than 10 mph. Night lows fall into the middle and upper 50s. && .LONG TERM /TUESDAY NIGHT THROUGH MONDAY/... Update: 3PM Highlights * Unsettled weather Wednesday through the weekend with more clouds than sun and periods of rain * Seasonable temperatures through the weekend Wednesday and Thursday A coastal low pressure system will pass well south of southern New England during the day Wednesday. Nonetheless, modest synoptic forcing and PWATs greater than 1 inch should support periods of rain during the day Wednesday. Accumulations will be modest with the strongest forcing to our south, but somewhere between 0.1 and 0.25 inches between Wednesday and Thursday morning should be in the cards for portions of southern New England. Downstream blocking has resulted in model guidance trending toward a slower departure of this system with cloud cover and showers lingering into the first half of Thursday for much of the forecast area. A mid-level ridge building in from the west may salvage a partly sunny day for the western areas on Thursday afternoon. Expect somewhat gusty southwest winds on Wednesday with northeast gusts along the east coast on Thursday. Friday through the weekend The forecast remains unsettled late week through the weekend. As the mid-week coastal low departs over the Atlantic Friday afternoon, a short-wave dropping down from The Great Lakes will support the development of another surface low-pressure system that is likely to bring cloudiness and periods of rain to southern New England this weekend. Confidence in timing, duration, and intensity of potential rainfall is low at this time so we have leaned on the NBM for guidance at this time range. Temperatures look to be seasonably persistent through the weekend with daily lows in the low to mid 50s and daily highs ranging from the low 60s to low 70s. Coastal locations continue to run cooler with highs in the upper 50s/low 60s more common on days with onshore flow. && .AVIATION /02Z TUESDAY THROUGH SATURDAY/... Forecast Confidence Levels: Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. 00Z TAF Update Tonight...High confidence. VFR. Scattered showers are possible across northern MA, with at times briefly lower VFR CIGs 3-5k ft. Winds are south to southwest 5 to 10 knots. Tuesday...High confidence. VFR. A few convective showers possible across interior MA and northern CT during the afternoon. Steady southwest winds with gusts developing in the afternoon 20 to 25 knots. Tuesday Night...Moderate confidence. VFR to start, becoming MVFR/IFR heading later into the night with increasing rain chances from west to east. Southwest winds 8 to 12 knots early, becoming south 5 to 10 knots. KBOS TAF...High confidence in TAF. VFR. Breezy southwest winds with gusts 20 to 25 knots fend off any sea-breeze potential on Tuesday. Rain chances increase Tuesday night. KBDL TAF...High confidence in TAF. Increasing wind speeds Tuesday with gusts 20 to 25 knots possible. Dry for most of Tuesday as well, rain arrives after 00z. Outlook /Tuesday Night through Saturday/... Wednesday Night: Mainly VFR, with local IFR possible. Breezy. Chance SHRA. Thursday: Mainly VFR, with local MVFR possible. Windy with local gusts up to 30 kt. Chance SHRA. Thursday Night: VFR. Breezy. Chance SHRA. Friday: VFR. Breezy. Slight chance SHRA. Friday Night: VFR. Chance SHRA. Saturday through Saturday Night: Mainly VFR, with local IFR possible. Chance SHRA. Sunday: Slight chance SHRA. && .MARINE... Forecaster Confidence Levels: Low - less than 30 percent. Medium - 30 to 60 percent. High - greater than 60 percent. Update: 3PM Tonight through Tuesday night.... Southwest to south winds this evening with winds speeds between 10 and 15 knots, seas area generally less than 3 feet, near 4 feet on the outermost waters. A robust southwest jet brings period of more gusty winds Tuesday afternoon between 20 and 35 knots and seas building to 4 feet, it is possible later crew could issue a Small Craft Advisory, especially for the northeast waters where there is a greater likelihood. Winds diminish Tuesday night with rain chances during the second-half of the night. Outlook /Tuesday Night through Saturday/... Wednesday Night: Winds less than 25 kt. Local rough seas. Chance of rain showers. Thursday: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Areas of rough seas. Chance of rain showers. Thursday Night: Low risk for Small Craft Advisory winds with gusts up to 30 kt. Areas of rough seas. Chance of rain showers. Friday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas up to 5 ft. Slight chance of rain showers. Friday Night: Winds less than 25 kt. Seas up to 5 ft. Slight chance of rain showers. Saturday: Winds less than 25 kt. Seas up to 5 ft. Chance of rain showers. Saturday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Chance of rain showers. Sunday: Winds less than 25 kt. Areas of seas approaching 5 ft. Slight chance of rain showers. && .BOX WATCHES/WARNINGS/ADVISORIES... CT...None. MA...None. RI...None. MARINE...None. && $$ SYNOPSIS...Dooley/RM NEAR TERM...Dooley/KS SHORT TERM...Dooley LONG TERM...RM AVIATION...Dooley/RM MARINE...Dooley/RM
Radar images courtesy Weather Underground / Intellicast.
UV Index forecast high for today: 7 High
Current (Estimated): 0 None
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:
0.00 in
Rain Today:
0.00 in
Monday:
1.52 in
May:
25.45 in
2024
12:01am
54.1°F
High today:
12:57am
52.5°F
Low today:
3:13pm
73.0°F
High Monday:
5:46am
43.2°F
Low Monday:
5:46am
43.2°F
Low wind chill Monday:
12:04am
50.5°F
High dew pt today:
9:51am
53.1°F
High dew pt Monday:
None
Wind gust today:
2:21pm
9 mph
Wind gust Monday:
No alerts/warnings active for Central Middlesex County.
First Light:
4:52am
Sunrise:
5:24am
Sunset:
7:59pm
Twilight ends:
8:31pm
Daylight length:
14 hours 35 minutes
Phase:
Waxing Crescent (37%)
Moon set:
1:37am
Moon rise:
11:08am