Lexington, Massachusetts, USA
36.7°F
2.6°C
Chilly
Clear
Overnight: Lo 30 °F
Thursday: Hi 54 °F
Dew Point: 22.5°F
Humidity: 56%
Barometer:
mb
Rain Rate: 0.00 in/hr
Rain Today: 0.00 in
Rain Wednesday: 0.00 in
Visibility: 10 miles
Wind:
Now: Calm
Avg: Calm
Gusts: 2 mph
Alerts active nearby in: Block Island Sound; Boston Harbor; Bristol, RI; Buzzards Bay; Cape Cod Bay; Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket; Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island; Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary; Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm; Eastern Essex, MA; Eastern Kent, RI; Eastern Norfolk, MA; Eastern Plymouth, MA; Hartford, CT; Massachusetts Bay and Ipswich Bay; Nantucket Sound; Narragansett Bay; Newport, RI; Northern Bristol, MA; Northwest Providence, RI; Rhode Island Sound; Southeast Middlesex County, MA; Southeast Providence, RI; Southern Bristol, MA; Southern Plymouth, MA; Suffolk, MA; Tolland, CT; Vineyard Sound; Washington, RI; Western Kent, RI; Western Plymouth, MA; Windham, CT
Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Wed Apr 24, 2024 9:24pm EDT
A cold front moves off the coast by this evening followed by unseasonably cold conditions tonight. High pressure dominates Thursday through Saturday with dry weather and gradually moderating temperatures. Unsettled pattern sets up for Sunday into early next week with shower chances at times but turning milder.
Clear
Lo 30 °F
Clear, with a low around 30. North wind 7 to 12 mph, with gusts as high as 26 mph.
Sunny
Hi 54 °F
Sunny, with a high near 54. Northwest wind around 7 mph.
Clear
Lo 30 °F
Clear, with a low around 30. Southwest wind around 6 mph.
Sunny
Hi 57 °F
Sunny, with a high near 57. Northeast wind 5 to 8 mph.
Mostly Clear
Lo 36 °F
Mostly clear, with a low around 36. South wind around 8 mph.
Mostly Sunny
Hi 63 °F
Mostly sunny, with a high near 63. Southwest wind 6 to 12 mph.
Chance Rain Showers
Lo 42 °F
A chance of rain showers after 9pm. Mostly cloudy, with a low around 42. South wind around 12 mph. Chance of precipitation is 30%.
Chance Rain Showers
Hi 65 °F
A chance of rain showers. Mostly cloudy, with a high near 65. Southwest wind around 12 mph. Chance of precipitation is 30%.
Slight Chance Rain Showers
Lo 52 °F
A slight chance of rain showers before 1am. Mostly cloudy, with a low around 52. Southwest wind 7 to 10 mph.
Partly Sunny then Slight Chance Rain Showers
Hi 71 °F
A slight chance of rain showers after 4pm. Partly sunny, with a high near 71. Northeast wind 7 to 10 mph.
Chance Rain Showers
Lo 53 °F
A chance of rain showers. Mostly cloudy, with a low around 53. Southeast wind 7 to 10 mph. Chance of precipitation is 30%.
Chance Showers And T-Storms
Hi 73 °F
A slight chance of rain showers before noon, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 73. South wind 8 to 14 mph. Chance of precipitation is 40%.
Chance Showers And T-Storms
Lo 53 °F
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Southwest wind 10 to 14 mph. Chance of precipitation is 40%.
Chance Rain Showers
Hi 67 °F
A chance of rain showers. Partly sunny, with a high near 67. West wind 10 to 14 mph. Chance of precipitation is 30%.
Issued by:
National Weather Service Boston / Norton, MA
Updated Wed Apr 24, 2024 9:24pm EDT
000 FXUS61 KBOX 250157 AFDBOX Area Forecast Discussion National Weather Service Boston/Norton MA 957 PM EDT Wed Apr 24 2024 .SYNOPSIS... A cold front moves off the coast by this evening followed by unseasonably cold conditions tonight. High pressure dominates Thursday through Saturday with dry weather and gradually moderating temperatures. Unsettled pattern sets up for Sunday into early next week with shower chances at times but turning milder. && .NEAR TERM /THROUGH THURSDAY/... Update: 10:00PM No adjustments needed for this update. Forecast remains on track with clearing sky cover and falling temperatures do to the CAA. Temperatures at this hour range from the upper 30s across northern Massachusetts while the south coast is still in the low 50s. Temperatures will rapidly cool off over the next several hours, no changes needed to the Frost/Freeze Headlines either. Previous discussion below... Scattered shower activity is quickly diminishing with sunset with the only remaining showers now over Cape Cod moving southeast. Rapid clearing develops this evening behind the front as PWATs crash. Cold advection maximizes this evening with NW gusts to 20-25 mph, and up to 30 mph along the coast, then diminishing overnight. Low temps forecast tricky as cooling will be from advection this evening, then radiational cooling late tonight as winds diminish. Still expecting lows mid/upper 20s interior, coldest NW MA, with lower 30s near the coast, but mid 30s Cape/Islands where winds will stay up through the night. Freeze watch was converted to Freeze warning and expanded along the entire coast. && .SHORT TERM /THURSDAY NIGHT/... High pressure will be in control with very dry airmass in place. Expect full sunshine Thu and clear skies Thu night. Winds will be light which will promote developing sea breezes by afternoon along the coast. Cooler airmass Thu as 850 mb temps bottom out at -2 to -4C. Highs will be in the mid-upper 50s but upper 40s along the immediate E MA coast where onshore winds develop. Very dry airmass with dewpoints well down into the teens Thu will result in RH values dropping to 15-25 percent, but winds will be light. && .LONG TERM /FRIDAY THROUGH WEDNESDAY/... Key Points... * Warming trend through the middle of next week. * remaining dry Friday and Saturday. * Low chance for showers Saturday then again Tuesday and Wednesday. Friday and Saturday... Upper level ridge and surface high pressure remains centered over the region through Saturday. With subsidence aloft and very dry mid level air, skies look to remain clear with very little clouds until late Saturday afternoon when high clouds ahead of a short wave move in. This will help moderate day time temperatures into low to mid 60s Friday and mid to upper 60s Saturday. With a weak pressure gradient, local sea breezes will occur Friday and possibly again Saturday. However, winds begin to increase out of the south Saturday afternoon, which could keep a true sea breeze from forming along the east coasts. With the clear skies and weak winds Friday night, there will be very efficient radiational cooling setting up. low temps should drop near freezing in the typical cold spots of NW MA, and some low lying spots in SE MA. Otherwise lows drop into the mid to upper 30s across the rest of SNE. Upper level ridge axis passes to the east by Saturday night with some warm air advection ahead of the next shortwave trough. This will lead to increased cloud cover and and isolated to scattered showers. Lows stay warmer Saturday night in the upper 30s to low 40s. Sunday and Monday The center of the high pressure drops south to the Carolinas, but the upper level ridge axis continues to stretch north in SNE. Being at the top of the ridge axis, weak vort impulses, along with warm air advection aloft bring high clouds and low chances for isolated showers both Sunday and Monday. High temperatures Sunday and Monday will be very dependent on the possibility of a back door cold front working in. Latest GFS and EURO is bringing that back door cold front through Sunday keeping temperatures in the low 60s. However, if that cold front stays offshore Sunday, temperatures could easily top the low to mid 70s. Given the uncertainty and run to run inconsistency, blended warmer NBM guidance with cooler CONSALL guidance. High temps will be warmer Monday regardless, but latest guidance has also trended temperatures back from the upper 70s to low 80s, down to the low to mid 70s due to the back door cold front. Again used a blend of the NBM and CONSALL guidance for Monday afternoon. Tuesday and Wednesday Upper level ridge axis again moves offshore to the east, but this time, a weakening shortwave trough moves through the region. Given this is a week out, stuck with NBM for precip chances, which shows 30-40% chance for showers. This seems reasonable given the weak forcing from the weakening trough. A cold front looks to move through behind the trough which could bring an isolated thunderstorms with it. Stuck with the NBM for high temperatures on Tuesday as southerly flow should kick out the back door cold front from Sunday and Monday. Highs should reach the mid to upper 70s, with a 30-40% chance at 80F in the CT river valley. Highs begin to trend cooler wednesday and beyond in the mid 60s to low 70s. && .AVIATION /02Z THURSDAY THROUGH MONDAY/... Forecast Confidence Levels: Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. Tonight...High confidence. VFR. NW gusts to 25 kt along the coast, diminishing after 06z. Thursday and Thursday night...High confidence. VFR. Light winds, with local sea breezes developing by 14-15Z. KBOS TAF...High confidence. VFR. NW winds gusting 20-30 knots through 06z, then diminishing and slowly turn north overnight. Sea breeze likely develops between 14-15z tomorrow morning. KBDL TAF...High confidence. VFR. NW winds gusting 20-30 knots through about 07z, then diminishing and turning more north overnight and remaining north tomorrow, eventually turning south tomorrow evening. Outlook /Friday through Monday/... Friday through Friday Night: VFR. Saturday: VFR. Breezy. Saturday Night: Mainly VFR, with local MVFR possible. Breezy. Chance SHRA. Sunday: Mainly VFR, with areas MVFR possible. Slight chance SHRA. Sunday Night: VFR. Slight chance SHRA. Monday: Mainly VFR, with local MVFR possible. Slight chance SHRA. && .MARINE... Forecaster Confidence Levels: Low - less than 30 percent. Medium - 30 to 60 percent. High - greater than 60 percent. Tonight through Thursday night...High Confidence. A period of NW wind gusts to 25-30 kt developing this evening behind the cold front, but diminishing overnight. SCA for all waters. Northerly winds 10-15 kt Thu morning becoming light Thu afternoon/night. Onshore winds develop near the coast Thu afternoon as sea breezes develop. Outlook /Friday through Monday/... Friday through Saturday: Winds less than 25 kt. Saturday Night through Sunday Night: Winds less than 25 kt. Slight chance of rain showers. Monday: Winds less than 25 kt. && .BOX WATCHES/WARNINGS/ADVISORIES... CT...Freeze Warning from 2 AM to 8 AM EDT Thursday for CTZ002>004. MA...Freeze Warning from 2 AM to 8 AM EDT Thursday for MAZ007- 014>021. RI...Freeze Warning from 2 AM to 8 AM EDT Thursday for RIZ001>007. MARINE...Small Craft Advisory until 4 AM EDT Thursday for ANZ230-231- 236-251. Small Craft Advisory until 8 AM EDT Thursday for ANZ232>235- 237. Small Craft Advisory until 2 PM EDT Thursday for ANZ250- 254>256. && $$ SYNOPSIS...KJC/KP NEAR TERM...KJC/Dooley/KP SHORT TERM...KJC LONG TERM...KP AVIATION...KJC/KP MARINE...KJC/KP
Radar images courtesy Weather Underground / Intellicast.
UV Index forecast high for today: 6 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
Wednesday:
3.99 in
April:
20.87 in
2024
17.5 in
Season Snow:
1 snow day in April
12:00am
37.6°F
High today:
12:49am
36.7°F
Low today:
3:21pm
65.8°F
High Wednesday:
11:57pm
37.6°F
Low Wednesday:
12:06am
31.1°F
Low wind chill today:
10:53pm
32.5°F
Low wind chill Wednesday:
12:29am
22.8°F
High dew pt today:
2:19pm
46.9°F
High dew pt Wednesday:
12:06am
9 mph
Wind gust today:
4:40pm
15 mph
Wind gust Wednesday:
First Light:
5:17am
Sunrise:
5:47am
Sunset:
7:38pm
Twilight ends:
8:09pm
Daylight length:
13 hours 51 minutes
Phase:
Waning Gibbous (99%)
Moon set:
6:19am
Moon rise:
9:51pm