South Acton, MA Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for South Acton, MA in one place.
Partly sunny, with a high near 64. Northeast wind 10 to 15 mph, with gusts as high as 28 mph.
Local Weather Overview
This forecast page for South Acton, 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 6:43 PM EDT.
The active forecast window currently covers Sep 23 to Sep 28, 2026 for South Acton, MA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 23 to Sep 28, 2026
- Latest sync
- Sep 22, 2026 6:43 PM EDT
- Forecast office
- BOX
- Source
- NOAA / NWS
Daily Outlook
This Week in South Acton
Wednesday looks like the warmest upcoming period in South Acton at 64 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Saturday at about 18 mph N.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 22, 2026 6:43 PM 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
Mostly clear, with a low around 47. Northeast wind 7 to 13 mph, with gusts as high as 24 mph.
Mostly sunny, with a high near 64. Northeast wind 10 to 14 mph, with gusts as high as 28 mph.
Mostly cloudy, with a low around 48. Northeast wind 9 to 14 mph, with gusts as high as 25 mph.
A chance of rain showers after noon. Partly sunny, with a high near 64. Northeast wind around 16 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 52. North wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a high near 61. North wind around 18 mph, with gusts as high as 35 mph. Chance of precipitation is 50%.
A chance of rain showers before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 53. North wind around 16 mph, with gusts as high as 32 mph. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a high near 62. North wind 12 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a low around 52. North wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a high near 63. North wind 9 to 14 mph. Chance of precipitation is 40%.
A slight chance of rain showers before 9pm. Mostly cloudy, with a low around 52. North wind 5 to 8 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 23
|
Partly Sunny
|
64°F |
10 to 15 mph
NE
|
|
Wednesday Night
Sep 23
|
Mostly Clear
|
47°F |
7 to 13 mph
NE
|
|
Thursday
Sep 24
|
Mostly Sunny
|
64°F |
10 to 14 mph
NE
|
|
Thursday Night
Sep 24
|
Mostly Cloudy
|
48°F |
9 to 14 mph
NE
|
|
Friday
Sep 25
|
Partly Sunny then Chance Rain Showers
|
64°F |
16 mph
NE
|
|
Friday Night
Sep 25
|
Chance Rain Showers
|
52°F |
17 mph
N
|
|
Saturday
Sep 26
|
Chance Rain Showers
|
61°F |
18 mph
N
|
|
Saturday Night
Sep 26
|
Chance Showers And Thunderstorms
|
53°F |
16 mph
N
|
|
Sunday
Sep 27
|
Chance Rain Showers
|
62°F |
12 to 15 mph
N
|
|
Sunday Night
Sep 27
|
Chance Rain Showers
|
52°F |
10 to 14 mph
N
|
|
Monday
Sep 28
|
Chance Rain Showers
|
63°F |
9 to 14 mph
N
|
|
Monday Night
Sep 28
|
Slight Chance Rain Showers then Mostly Cloudy
|
52°F |
5 to 8 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Acton.