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.

Light Drizzle Fog/Mist

44°F

7°C

Humidity 100%
Wind Speed Calm
Barometer 29.90 in (1012.3 mb)
Dewpoint 44°F (7°C)
Visibility 2.00 mi
Last update 19 Apr 3:54 am EDT
Extended Forecast for

Weymouth MA

  • Overnight

    Overnight: A slight chance of showers after 5am. Patchy dense fog. Otherwise, cloudy, with a low around 43. South wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Showers and
    Patchy Dense
    Fog

  • Sunday

    Sunday: Rain and possibly a thunderstorm. Patchy dense fog between 1pm and 3pm. High near 56. South wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Rain and
    Patchy Dense
    Fog

  • Sunday Night

    Sunday Night: A chance of rain, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 35. West wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance Rain
    then Mostly
    Clear

  • Monday

    Monday: A chance of rain, mainly after 4pm. Increasing clouds, with a high near 51. West wind around 7 mph. Chance of precipitation is 30%.

    High: 51 °F

    Mostly Sunny
    then Chance
    Rain

  • Monday Night

    Monday Night: A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 33. North wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 33 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 48. North wind around 6 mph becoming east in the afternoon.

    High: 48 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 36. South wind around 6 mph.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 53. South wind 6 to 9 mph.

    High: 53 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40. South wind around 6 mph becoming west after midnight.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of showers after 5am. Patchy dense fog. Otherwise, cloudy, with a low around 43. South wind 3 to 5 mph. Chance of precipitation is 20%.
Sunday
Rain and possibly a thunderstorm. Patchy dense fog between 1pm and 3pm. High near 56. South wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of rain, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 35. West wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of rain, mainly after 4pm. Increasing clouds, with a high near 51. West wind around 7 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 33. North wind 5 to 7 mph. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 48. North wind around 6 mph becoming east in the afternoon.
Tuesday Night
Partly cloudy, with a low around 36. South wind around 6 mph.
Wednesday
Mostly cloudy, with a high near 53. South wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 40. South wind around 6 mph becoming west after midnight.
Thursday
Partly sunny, with a high near 61. Northwest wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 41. North wind around 6 mph.
Friday
Mostly sunny, with a high near 58. North wind 5 to 7 mph becoming northeast in the afternoon.
Friday Night
Partly cloudy, with a low around 41. Southeast wind around 5 mph becoming light and variable in the evening.
Saturday
Partly sunny, with a high near 58. Northeast wind 5 to 8 mph becoming east in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Weymouth MA
 42.19°N 70.93°W (Elev. 98 ft)
Last Update:
3:05 am EDT Apr 19, 2026
Forecast Valid:
4am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation