What Boston meteorologists are saying about the heavy rain overnight and Thursday

[Radar Loop: 7:30pm] Showers have arrived across southern RI and southeastern MA. Rain does become heavy overnight with the highest rainfall totals along the I-95 with totals between 1-3 inches [localized higher amounts of 4 inches are possible] #MAwx #RIwx #CTwx pic.twitter.com/X0s4Xs2RLz

— NWS Boston (@NWSBoston) August 4, 2021

4pm Update: Flash Flood Watch expanded. Heavy downpours may lead to significant urban & small stream flooding.

⏰: Late tonight through mid-morning Thursday.

🌧️: A swath of 1-3" is expected with localized amounts of 4" possible. #MAwx #RIwx #CTwx pic.twitter.com/uUXRKkPV7C

— NWS Boston (@NWSBoston) August 4, 2021

[Heavy Rain🌧️Wed Night] After a nice dry stretch, heavy rain returns overnight Wednesday into Thursday. This may lead to some urban and small stream flooding, though where the heaviest rain sets up remains uncertain. We'll have a better idea by Wed morning. Stay tuned! pic.twitter.com/3qIKmiSdXa

— NWS Boston (@NWSBoston) August 3, 2021

Dry weather lingers into early afternoon today, then rain comes onshore mid/late afternoon south coast of MA/RI, then all areas this evening, with very heavy rain overnight into early Thu morning. A swath of 1-3" of rain with isolated amounts up to 4" possible. #MAwx #RIwx #CTwx pic.twitter.com/i63wzh2hji

— NWS Boston (@NWSBoston) August 4, 2021

A rough estimate… but you get the idea… heavy rain tonight through early Thursday may lead to flash flooding in poor drainage areas, near small rivers and streams and urban areas.

Timing the rain on #WBZ at noon! #CBSNBoston pic.twitter.com/IGgPW4sRVe

— Sarah Wroblewski (@sarahwroblewski) August 4, 2021

Rain continues tomorrow morning, tapering during the afternoon… staying cool under the clouds & rain. Forecast on #CBSNBoston #WBZ pic.twitter.com/NRUgsmQDcN

— Sarah Wroblewski (@sarahwroblewski) August 4, 2021

Whatever your plans, it will be wet tonight through tomorrow… turns dry & warm to finish off the week! Heat and humidity builds into the weekend! #WBZ #CBSNBoston pic.twitter.com/JHQCbFin8F

— Sarah Wroblewski (@sarahwroblewski) August 4, 2021

The Billy Joel Concert at #Fenway looks wet. Showers will probably get heavier & steadier through the evening. Bring a poncho. @boston25 pic.twitter.com/GKbqRPmxb6

— Shiri Spear (@ShiriSpear) August 4, 2021

A FLOOD WATCH will be in effect tonight – tomorrow morning for torrential rain in parts of MA. @boston25 pic.twitter.com/StDCNOZ3F4

— Shiri Spear (@ShiriSpear) August 4, 2021

Showers will slowly shift from south to north this afternoon, reaching #Boston around 4 PM-ish. @boston25 #mawx #newengland pic.twitter.com/hbt9wYoU9d

— Shiri Spear (@ShiriSpear) August 4, 2021

Likely picking up at least 2-3" of rain where the heaviest bands of downpours set up tonight-tomorrow morning. Another soaking for sure. Gusty winds, 30-40mph possible too across Southeast Mass. pic.twitter.com/s3w32Sactz

— Chris Lambert (@clamberton7) August 4, 2021

Tropical downpours tonight into tomorrow morning. Flash flood watch up for much of eastern Mass. pic.twitter.com/zSR9hPoT15

— Chris Lambert (@clamberton7) August 4, 2021

Showers arrive this afternoon across Southeast Mass. pic.twitter.com/oeFQcuqRlS

— Chris Lambert (@clamberton7) August 4, 2021

One round of downpours this evening. pic.twitter.com/76wFwfah5B

— Chris Lambert (@clamberton7) August 4, 2021

Torrential downpours embedded with this batch of rain predawn-daybreak tomorrow. Localized street flooding/poor drainage areas flooding tomorrow. pic.twitter.com/KmGV5YKofw

— Chris Lambert (@clamberton7) August 4, 2021

1-3" likely in many locations from Wednesday night through Thursday morning. Highest totals near the 95 corridor with isolated 3"+. pic.twitter.com/YU2tkPuuSW

— Zack Green (@zackgreenwx) August 4, 2021

A good dose of rain from the 95 corridor→east.
1-3" possible between Wednesday and Thursday's showers.
Lower values for interior spots. pic.twitter.com/OjHqxrsE1j

— Zack Green (@zackgreenwx) August 3, 2021

Flash Flood Watch in effect from Wednesday evening to Thursday morning for the areas shaded in green. 1-3" expected. The full story and when we dry out on #WBZThisMorning pic.twitter.com/12LoQ6WOcY

— Zack Green (@zackgreenwx) August 4, 2021

Initial showers near 3pm towards South Coast, Cape, and Islands. These become steady and heavy at times near sunset. pic.twitter.com/MFRdrhekkX

— Zack Green (@zackgreenwx) August 4, 2021

Heading to Fenway for a concert this week? We're in for a few different scenarios.

Billy Joel: Steady rain.
Green Day: Showers taper off.
New Kids: Drying out.
Zac Brown: Summer day! pic.twitter.com/x0aAXisU6E

— Zack Green (@zackgreenwx) August 4, 2021