South Amherst, MA Weather Forecast
Local 7-day forecast
Areas Of Smoke then Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for South Amherst, MA in one place.
Areas of smoke before noon, then areas of smoke and a chance of rain showers between noon and 2pm, then showers and thunderstorms. Some of the storms could produce heavy rain. Partly sunny. High near 83, with temperatures falling to around 75 in the afternoon. South wind 2 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for South Amherst, 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: Jul 17, 2026 12:34 PM EDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for South Amherst, MA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 12:34 PM EDT
- Forecast office
- BOX
- Source
- NOAA / NWS
Daily Outlook
This Week in South Amherst
Wednesday looks like the warmest upcoming period in South Amherst at 85 degrees F.
Sunday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Sunday at about 8 to 14 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 12:34 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
Showers and thunderstorms before 5am. Some of the storms could produce heavy rain. Cloudy, with a low around 67. Southwest wind 6 to 12 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunny, with a high near 79. Northwest wind 8 to 14 mph.
Mostly clear, with a low around 58. Northwest wind 1 to 10 mph.
Sunny, with a high near 84. West wind 0 to 6 mph.
Partly cloudy, with a low around 63. South wind around 6 mph.
A chance of rain showers between 11am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind 3 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 8 to 13 mph. Chance of precipitation is 80%.
Rain showers likely before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 85. Southwest wind around 10 mph. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 61. Northwest wind 3 to 9 mph. Chance of precipitation is 30%.
Sunny, with a high near 83. Northwest wind around 6 mph.
Mostly clear, with a low around 60. Northwest wind 1 to 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Areas Of Smoke then Showers And Thunderstorms
|
83°F |
2 to 13 mph
S
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms
|
67°F |
6 to 12 mph
SW
|
|
Sunday
Jul 19
|
Sunny
|
79°F |
8 to 14 mph
NW
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
58°F |
1 to 10 mph
NW
|
|
Monday
Jul 20
|
Sunny
|
84°F |
0 to 6 mph
W
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
63°F |
6 mph
S
|
|
Tuesday
Jul 21
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
84°F |
3 to 14 mph
S
|
|
Tuesday Night
Jul 21
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
66°F |
8 to 13 mph
S
|
|
Wednesday
Jul 22
|
Rain Showers Likely then Chance Showers And Thunderstorms
|
85°F |
10 mph
SW
|
|
Wednesday Night
Jul 22
|
Chance Showers And Thunderstorms then Partly Cloudy
|
61°F |
3 to 9 mph
NW
|
|
Thursday
Jul 23
|
Sunny
|
83°F |
6 mph
NW
|
|
Thursday Night
Jul 23
|
Mostly Clear
|
60°F |
1 to 5 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Amherst.