Cohasset, MA Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Cohasset, MA in one place.
A chance of rain showers before 3pm. Mostly cloudy, with a high near 74. West wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Cohasset, 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: May 24, 2026 4:51 AM EDT.
The active forecast window currently covers May 25 to May 30, 2026 for Cohasset, MA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 25 to May 30, 2026
- Latest sync
- May 24, 2026 4:51 AM EDT
- Forecast office
- BOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Cohasset
Wednesday looks like the warmest upcoming period in Cohasset at 83 degrees F.
Friday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Wednesday at about 3 to 12 mph SW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- May 24, 2026 4:51 AM 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 cloudy, with a low around 56. West wind 1 to 5 mph.
Partly sunny, with a high near 77. West wind 0 to 8 mph.
Partly cloudy, with a low around 59. Southwest wind 3 to 7 mph.
A slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 83. Southwest wind 3 to 12 mph.
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57. West wind 2 to 9 mph.
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 74. Northeast wind 2 to 9 mph.
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 52. North wind 2 to 8 mph.
A chance of rain showers after 10am. Mostly sunny, with a high near 70. Northwest wind 5 to 9 mph. Chance of precipitation is 30%.
A chance of rain showers before 2am. Partly cloudy, with a low around 50. Southwest wind 1 to 7 mph. Chance of precipitation is 30%.
Mostly sunny, with a high near 70. Southwest wind 3 to 10 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Memorial Day
May 25
|
Chance Rain Showers
|
74°F |
6 mph
W
|
|
Monday Night
May 25
|
Mostly Cloudy
|
56°F |
1 to 5 mph
W
|
|
Tuesday
May 26
|
Partly Sunny
|
77°F |
0 to 8 mph
W
|
|
Tuesday Night
May 26
|
Partly Cloudy
|
59°F |
3 to 7 mph
SW
|
|
Wednesday
May 27
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
83°F |
3 to 12 mph
SW
|
|
Wednesday Night
May 27
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
57°F |
2 to 9 mph
W
|
|
Thursday
May 28
|
Mostly Sunny then Slight Chance Rain Showers
|
74°F |
2 to 9 mph
NE
|
|
Thursday Night
May 28
|
Slight Chance Rain Showers then Partly Cloudy
|
52°F |
2 to 8 mph
N
|
|
Friday
May 29
|
Chance Rain Showers
|
70°F |
5 to 9 mph
NW
|
|
Friday Night
May 29
|
Chance Rain Showers
|
50°F |
1 to 7 mph
SW
|
|
Saturday
May 30
|
Mostly Sunny
|
70°F |
3 to 10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Cohasset.
