South Lancaster, MA Weather Forecast
Local 7-day forecast
Patchy Fog then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for South Lancaster, MA in one place.
Patchy fog before 7am, then a slight chance of showers and thunderstorms between 2pm and 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 91. Heat index values as high as 96. West wind 5 to 9 mph. Chance of precipitation is 30%.
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: Jun 10, 2026 1:49 PM EDT.
The active forecast window currently covers Jun 11 to Jun 16, 2026 for South Lancaster, MA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 11 to Jun 16, 2026
- Latest sync
- Jun 10, 2026 1:49 PM EDT
- Forecast office
- BOX
- Source
- NOAA / NWS
Daily Outlook
This Week in South Lancaster
Thursday looks like the warmest upcoming period in South Lancaster at 91 degrees F.
Monday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Sunday at about 2 to 13 mph SW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 10, 2026 1:49 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
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Northwest wind 2 to 7 mph. Chance of precipitation is 30%.
A chance of rain showers before 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 90. Northeast wind 2 to 7 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 3 to 7 mph. Chance of precipitation is 40%.
A slight chance of rain showers before 8am. Mostly sunny, with a high near 90. Northwest wind 5 to 8 mph.
Clear, with a low around 61. West wind 2 to 8 mph.
Sunny, with a high near 89. Southwest wind 2 to 13 mph, with gusts as high as 23 mph.
A chance of rain showers after 9pm. Mostly cloudy, with a low around 60. Southwest wind 5 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 82. West wind 5 to 9 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Northwest wind 5 to 9 mph. Chance of precipitation is 40%.
A chance of rain showers. Partly sunny, with a high near 78. North wind around 7 mph. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a low around 58. Northwest wind 2 to 7 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jun 11
|
Patchy Fog then Slight Chance Showers And Thunderstorms
|
91°F |
5 to 9 mph
W
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms
|
68°F |
2 to 7 mph
NW
|
|
Friday
Jun 12
|
Chance Rain Showers
|
90°F |
2 to 7 mph
NE
|
|
Friday Night
Jun 12
|
Chance Showers And Thunderstorms
|
65°F |
3 to 7 mph
S
|
|
Saturday
Jun 13
|
Slight Chance Rain Showers then Mostly Sunny
|
90°F |
5 to 8 mph
NW
|
|
Saturday Night
Jun 13
|
Clear
|
61°F |
2 to 8 mph
W
|
|
Sunday
Jun 14
|
Sunny
|
89°F |
2 to 13 mph
SW
|
|
Sunday Night
Jun 14
|
Chance Rain Showers
|
60°F |
5 to 12 mph
SW
|
|
Monday
Jun 15
|
Chance Rain Showers
|
82°F |
5 to 9 mph
W
|
|
Monday Night
Jun 15
|
Chance Showers And Thunderstorms
|
57°F |
5 to 9 mph
NW
|
|
Tuesday
Jun 16
|
Chance Rain Showers
|
78°F |
7 mph
N
|
|
Tuesday Night
Jun 16
|
Chance Rain Showers
|
58°F |
2 to 7 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Lancaster.
