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.

Overcast

57°F

14°C

Humidity 96%
Wind Speed SW 12 mph
Barometer 29.50 in (998.8 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 12 Mar 4:54 am EDT
Extended Forecast for

Cohasset MA

  • Overnight

    Overnight: A chance of showers. Cloudy, with a steady temperature around 54. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 54 °F

    Chance
    Showers

  • Thursday

    Thursday: Rain likely before 5pm, then rain and snow likely. Cloudy, with a temperature falling to around 36 by 5pm. Southwest wind 10 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 51 °F⇓

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of snow, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 29. Northwest wind 10 to 18 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance Snow
    then Mostly
    Clear

  • Friday

    Friday: Increasing clouds, with a high near 40. West wind 7 to 10 mph becoming south in the afternoon.

    High: 40 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A slight chance of rain after 9pm. Mostly cloudy, with a low around 35. South wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 47. Breezy, with a west wind 14 to 20 mph, with gusts as high as 37 mph.

    High: 47 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30. West wind 8 to 15 mph, with gusts as high as 28 mph.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 44. Northwest wind 6 to 8 mph becoming southeast in the afternoon.

    High: 44 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely, mainly after 5am. Cloudy, with a low around 37. Southeast wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    Low: 37 °F

    Cloudy then
    Rain Likely

Detailed Forecast

Overnight
A chance of showers. Cloudy, with a steady temperature around 54. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Thursday
Rain likely before 5pm, then rain and snow likely. Cloudy, with a temperature falling to around 36 by 5pm. Southwest wind 10 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of snow, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 29. Northwest wind 10 to 18 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Friday
Increasing clouds, with a high near 40. West wind 7 to 10 mph becoming south in the afternoon.
Friday Night
A slight chance of rain after 9pm. Mostly cloudy, with a low around 35. South wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 47. Breezy, with a west wind 14 to 20 mph, with gusts as high as 37 mph.
Saturday Night
Partly cloudy, with a low around 30. West wind 8 to 15 mph, with gusts as high as 28 mph.
Sunday
Mostly cloudy, with a high near 44. Northwest wind 6 to 8 mph becoming southeast in the afternoon.
Sunday Night
Rain likely, mainly after 5am. Cloudy, with a low around 37. Southeast wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Monday
Rain. High near 59. Breezy, with a south wind 18 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 90%.
Monday Night
Rain. Low around 36. Breezy, with a south wind 16 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 80%.
Tuesday
A chance of rain. Partly sunny, with a high near 44. West wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 24. West wind around 11 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 38. West wind around 9 mph.
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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:
2:43 am EDT Mar 12, 2026
Forecast Valid:
5am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation