Groton, MA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Groton, MA in one place.
Mostly sunny, with a high near 60. Northeast wind 9 to 14 mph, with gusts as high as 30 mph.
Local Weather Overview
This forecast page for Groton, MA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 22, 2026 9:34 AM EDT.
The active forecast window currently covers Sep 23 to Sep 28, 2026 for Groton, MA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 23 to Sep 28, 2026
- Latest sync
- Sep 22, 2026 9:34 AM EDT
- Forecast office
- BOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Groton
Monday looks like the warmest upcoming period in Groton at 64 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Friday Night at about 15 to 20 mph N.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 22, 2026 9:34 AM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- BOX
- Radar station
- KBOX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 47. Northeast wind around 12 mph, with gusts as high as 23 mph.
Mostly sunny, with a high near 62. Northeast wind 12 to 15 mph, with gusts as high as 30 mph.
A slight chance of rain showers after 4am. Mostly cloudy, with a low around 49. Northeast wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
A chance of rain showers. Mostly cloudy, with a high near 61. Northeast wind around 16 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.
Rain showers likely. Mostly cloudy, with a low around 51. North wind 15 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 70%.
Rain showers likely. Mostly cloudy, with a high near 61. North wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.
Rain showers likely. Mostly cloudy, with a low around 51. North wind around 16 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.
A chance of rain showers. Partly sunny, with a high near 63. North wind 12 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a low around 51. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
A slight chance of rain showers. Mostly sunny, with a high near 64. North wind 9 to 14 mph.
A slight chance of rain showers before midnight. Partly cloudy, with a low around 50. North wind around 8 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 23
|
Mostly Sunny
|
60°F |
9 to 14 mph
NE
|
|
Wednesday Night
Sep 23
|
Partly Cloudy
|
47°F |
12 mph
NE
|
|
Thursday
Sep 24
|
Mostly Sunny
|
62°F |
12 to 15 mph
NE
|
|
Thursday Night
Sep 24
|
Mostly Cloudy then Slight Chance Rain Showers
|
49°F |
10 to 15 mph
NE
|
|
Friday
Sep 25
|
Chance Rain Showers
|
61°F |
16 mph
NE
|
|
Friday Night
Sep 25
|
Rain Showers Likely
|
51°F |
15 to 20 mph
N
|
|
Saturday
Sep 26
|
Rain Showers Likely
|
61°F |
15 to 20 mph
N
|
|
Saturday Night
Sep 26
|
Rain Showers Likely
|
51°F |
16 mph
N
|
|
Sunday
Sep 27
|
Chance Rain Showers
|
63°F |
12 to 16 mph
N
|
|
Sunday Night
Sep 27
|
Chance Rain Showers
|
51°F |
10 to 15 mph
N
|
|
Monday
Sep 28
|
Slight Chance Rain Showers
|
64°F |
9 to 14 mph
N
|
|
Monday Night
Sep 28
|
Slight Chance Rain Showers then Partly Cloudy
|
50°F |
8 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Groton.
