National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

A Few Clouds

70°F

21°C

Humidity 87%
Wind Speed S 7 mph
Barometer 30.13 in (1020.2 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 12 Jul 10:54 pm EDT
Extended Forecast for

Cohasset MA

  • Tonight

    Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 64. Southeast wind around 6 mph.

    Low: 64 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 80. Southeast wind 5 to 10 mph.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 66. South wind 5 to 7 mph.

    Low: 66 °F

    Increasing
    Clouds

  • Monday

    Monday: A slight chance of showers between 3pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 84. South wind 5 to 8 mph. Chance of precipitation is 20%.

    High: 84 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 70. Southwest wind around 6 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 89. West wind around 6 mph becoming south in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71. Southwest wind around 6 mph.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 91. South wind 3 to 8 mph.

    High: 91 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 73. Southwest wind 7 to 9 mph.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 64. Southeast wind around 6 mph.
Sunday
Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 80. Southeast wind 5 to 10 mph.
Sunday Night
Increasing clouds, with a low around 66. South wind 5 to 7 mph.
Monday
A slight chance of showers between 3pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 84. South wind 5 to 8 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 70. Southwest wind around 6 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 89. West wind around 6 mph becoming south in the afternoon.
Tuesday Night
Mostly clear, with a low around 71. Southwest wind around 6 mph.
Wednesday
Sunny and hot, with a high near 91. South wind 3 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 73. Southwest wind 7 to 9 mph.
Thursday
Mostly sunny, with a high near 89. South wind 7 to 11 mph.
Thursday Night
Mostly cloudy, with a low around 72. Southwest wind 8 to 10 mph.
Friday
A chance of showers. Partly sunny, with a high near 84. South wind 8 to 10 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 68. Southwest wind around 7 mph. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 81. North wind 6 to 8 mph becoming east in the afternoon. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cohasset MA
 42.24°N 70.8°W (Elev. 46 ft)
Last Update:
6:14 pm EDT Jul 12, 2025
Forecast Valid:
11pm EDT Jul 12, 2025-6pm EDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation