Cohasset, MA Weather Forecast
Local 7-day forecast
Patchy Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Cohasset, MA in one place.
Patchy fog. Mostly cloudy, with a low around 70. Southwest wind around 5 mph.
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: Jul 10, 2026 7:10 AM EDT.
The active forecast window currently covers Jul 10 to Jul 16, 2026 for Cohasset, MA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 10 to Jul 16, 2026
- Latest sync
- Jul 10, 2026 7:10 AM EDT
- Forecast office
- BOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Cohasset
Wednesday looks like the warmest upcoming period in Cohasset at 96 degrees F.
Saturday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Tuesday at about 7 to 14 mph SW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 10, 2026 7:10 AM 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
Patchy fog before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 98. Northwest wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Northeast wind around 3 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 84. Northeast wind 3 to 8 mph. Chance of precipitation is 20%. New rainfall amounts between a quarter and half of an inch possible.
Mostly clear, with a low around 62. Northeast wind 0 to 6 mph.
Sunny, with a high near 82. Northeast wind 3 to 7 mph.
Mostly clear, with a low around 63. South wind 1 to 6 mph.
Sunny, with a high near 85. Southwest wind 1 to 13 mph.
Mostly clear, with a low around 66. Southwest wind 7 to 12 mph.
Sunny, with a high near 91. Southwest wind 7 to 14 mph.
Mostly clear, with a low around 73. Southwest wind 9 to 14 mph.
A slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 96. Southwest wind 8 to 13 mph.
A slight chance of showers and thunderstorms before 3am. Mostly cloudy, with a low around 72. West wind 3 to 12 mph.
Mostly sunny, with a high near 92. West wind 3 to 9 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 10
|
Patchy Fog
|
70°F |
5 mph
SW
|
|
Friday
Jul 10
|
Patchy Fog then Chance Showers And Thunderstorms
|
90°F |
6 mph
NW
|
|
Friday Night
Jul 10
|
Chance Showers And Thunderstorms
|
67°F |
3 mph
NE
|
|
Saturday
Jul 11
|
Slight Chance Rain Showers then Mostly Sunny
|
84°F |
3 to 8 mph
NE
|
|
Saturday Night
Jul 11
|
Mostly Clear
|
62°F |
0 to 6 mph
NE
|
|
Sunday
Jul 12
|
Sunny
|
82°F |
3 to 7 mph
NE
|
|
Sunday Night
Jul 12
|
Mostly Clear
|
63°F |
1 to 6 mph
S
|
|
Monday
Jul 13
|
Sunny
|
85°F |
1 to 13 mph
SW
|
|
Monday Night
Jul 13
|
Mostly Clear
|
66°F |
7 to 12 mph
SW
|
|
Tuesday
Jul 14
|
Sunny
|
91°F |
7 to 14 mph
SW
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
73°F |
9 to 14 mph
SW
|
|
Wednesday
Jul 15
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
96°F |
8 to 13 mph
SW
|
|
Wednesday Night
Jul 15
|
Slight Chance Showers And Thunderstorms
|
72°F |
3 to 12 mph
W
|
|
Thursday
Jul 16
|
Mostly Sunny
|
92°F |
3 to 9 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Cohasset.
