South Lancaster, MA Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for South Lancaster, MA in one place.
A chance of rain showers before 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Southwest wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for South Lancaster, 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: Apr 15, 2026 5:43 PM EDT.
The active forecast window currently covers Apr 15 to Apr 21, 2026 for South Lancaster, MA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 5:43 PM EDT
- Forecast office
- BOX
- Source
- NOAA / NWS
Daily Outlook
This Week in South Lancaster
This Afternoon looks like the warmest upcoming period in South Lancaster at 81 degrees F.
Monday Night is the coolest period ahead with temperatures near 28 degrees F.
The strongest winds are forecast for Monday at about 13 mph NW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 5:43 PM EDT
- Coverage
- 7 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
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then patchy fog and showers and thunderstorms likely between 1am and 3am, then patchy fog and a chance of showers and thunderstorms between 3am and 5am, then patchy fog and a slight chance of rain showers. Mostly cloudy, with a low around 59. South wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Patchy fog and a slight chance of rain showers. Mostly sunny, with a high near 78. Southwest wind 3 to 9 mph. Chance of precipitation is 20%.
A chance of rain showers before 11pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Southwest wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers and thunderstorms likely. Partly sunny, with a high near 75. Northwest wind around 8 mph. Chance of precipitation is 60%.
A chance of rain showers before 10pm. Mostly cloudy, with a low around 49. Northeast wind around 8 mph. Chance of precipitation is 50%.
Mostly cloudy, with a high near 64. East wind around 8 mph.
A chance of rain showers after midnight. Mostly cloudy, with a low around 47. Southeast wind around 8 mph. Chance of precipitation is 30%.
Rain showers likely. Mostly cloudy, with a high near 59. Southwest wind 8 to 12 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Rain showers likely before 2am, then a chance of snow showers. Mostly cloudy, with a low around 33. West wind around 12 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
A slight chance of snow showers. Mostly sunny, with a high near 46. Northwest wind around 13 mph, with gusts as high as 23 mph.
Partly cloudy, with a low around 28. Northwest wind around 10 mph.
Sunny, with a high near 54. West wind around 10 mph.
A slight chance of rain showers after midnight. Partly cloudy, with a low around 39. Southwest wind around 10 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Apr 15
|
Chance Showers And Thunderstorms
|
81°F |
8 mph
SW
|
|
Tonight
Apr 15
|
Chance Showers And Thunderstorms
|
59°F |
6 mph
S
|
|
Thursday
Apr 16
|
Patchy Fog
|
78°F |
3 to 9 mph
SW
|
|
Thursday Night
Apr 16
|
Chance Showers And Thunderstorms
|
60°F |
8 mph
SW
|
|
Friday
Apr 17
|
Chance Showers And Thunderstorms
|
75°F |
8 mph
NW
|
|
Friday Night
Apr 17
|
Chance Rain Showers then Mostly Cloudy
|
49°F |
8 mph
NE
|
|
Saturday
Apr 18
|
Mostly Cloudy
|
64°F |
8 mph
E
|
|
Saturday Night
Apr 18
|
Mostly Cloudy then Chance Rain Showers
|
47°F |
8 mph
SE
|
|
Sunday
Apr 19
|
Rain Showers Likely
|
59°F |
8 to 12 mph
SW
|
|
Sunday Night
Apr 19
|
Rain Showers Likely then Chance Snow Showers
|
33°F |
12 mph
W
|
|
Monday
Apr 20
|
Slight Chance Snow Showers
|
46°F |
13 mph
NW
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
28°F |
10 mph
NW
|
|
Tuesday
Apr 21
|
Sunny
|
54°F |
10 mph
W
|
|
Tuesday Night
Apr 21
|
Partly Cloudy then Slight Chance Rain Showers
|
39°F |
10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Lancaster.
