Greylock, MA Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Greylock, MA in one place.
Partly sunny, with a high near 76. South wind 1 to 7 mph.
Local Weather Overview
This forecast page for Greylock, 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 15, 2026 12:15 PM EDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Greylock, MA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 12:15 PM EDT
- Forecast office
- ALY
- Source
- NOAA / NWS
Daily Outlook
This Week in Greylock
Thursday looks like the warmest upcoming period in Greylock at 77 degrees F.
Friday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Saturday Night at about 6 to 14 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 12:15 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- ALY
- Radar station
- KENX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 59. Southeast wind around 1 mph.
A chance of rain showers after 2pm. Partly sunny, with a high near 77. South wind 1 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 60. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 8am. Mostly sunny, with a high near 73.
Partly cloudy, with a low around 48.
Partly sunny, with a high near 68.
A chance of rain showers after 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.
Rain showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Rain showers likely. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
A chance of rain showers. Partly sunny, with a high near 67. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Partly Sunny
|
76°F |
1 to 7 mph
S
|
|
Wednesday Night
Sep 16
|
Mostly Cloudy
|
59°F |
1 mph
SE
|
|
Thursday
Sep 17
|
Partly Sunny then Chance Rain Showers
|
77°F |
1 to 5 mph
S
|
|
Thursday Night
Sep 17
|
Showers And Thunderstorms Likely
|
60°F |
5 mph
SW
|
|
Friday
Sep 18
|
Slight Chance Rain Showers then Mostly Sunny
|
73°F |
5 to 9 mph
N
|
|
Friday Night
Sep 18
|
Partly Cloudy
|
48°F |
2 to 8 mph
N
|
|
Saturday
Sep 19
|
Partly Sunny
|
68°F |
5 mph
SE
|
|
Saturday Night
Sep 19
|
Chance Rain Showers
|
54°F |
6 to 14 mph
S
|
|
Sunday
Sep 20
|
Rain Showers Likely
|
70°F |
10 to 14 mph
SW
|
|
Sunday Night
Sep 20
|
Rain Showers Likely
|
53°F |
6 to 9 mph
NW
|
|
Monday
Sep 21
|
Chance Rain Showers
|
67°F |
7 mph
N
|
|
Monday Night
Sep 21
|
Chance Rain Showers
|
49°F |
3 to 7 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Greylock.