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

Hazardous Weather Conditions

Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Overcast

29°F

-2°C

Humidity 85%
Wind Speed E 3 mph
Barometer 30.07 in (1018.0 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 21 Feb 4:54 pm EST
Extended Forecast for

Dorchester MA

Coastal Flood Watch February 23, 01:00am until February 24, 07:00am
Blizzard Warning February 22, 04:00pm until February 24, 07:00am
Click here for hazard details and duration
Coastal Flood Watch
Blizzard Warning

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Light and variable wind.

    Low: 21 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 36. Light and variable wind becoming east 6 to 11 mph in the morning.

    High: 36 °F

    Cloudy

  • Sunday Night

    Sunday Night: Snow, mainly after 11pm. The snow could be heavy at times. Patchy fog after 2am. Areas of freezing fog after 5am. Low around 28. Blustery, with an east wind 15 to 23 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 28 °F

    Snow Likely
    then Heavy
    Snow and
    Areas
    Freezing Fog

  • Monday

    Monday: Snow. The snow could be heavy at times. Areas of freezing fog before 8am. High near 33. Breezy, with a north wind 21 to 25 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 16 inches possible.

    High: 33 °F

    Heavy Snow
    and Areas
    Freezing Fog

  • Monday Night

    Monday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 22. Northwest wind 10 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 22 °F

    Snow Likely
    then Chance
    Snow

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33. West wind around 10 mph, with gusts as high as 21 mph.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 14. West wind 5 to 7 mph.

    Low: 14 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Snow likely before 1pm, then snow likely, possibly mixed with rain. Mostly cloudy, with a high near 36. Southwest wind 5 to 7 mph. Chance of precipitation is 60%.

    High: 36 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 4am, then a chance of snow after 5am. Mostly cloudy, with a low around 28. Southwest wind around 6 mph. Chance of precipitation is 50%.

    Low: 28 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 21. Light and variable wind.
Sunday
Cloudy, with a high near 36. Light and variable wind becoming east 6 to 11 mph in the morning.
Sunday Night
Snow, mainly after 11pm. The snow could be heavy at times. Patchy fog after 2am. Areas of freezing fog after 5am. Low around 28. Blustery, with an east wind 15 to 23 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Monday
Snow. The snow could be heavy at times. Areas of freezing fog before 8am. High near 33. Breezy, with a north wind 21 to 25 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 16 inches possible.
Monday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 22. Northwest wind 10 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Mostly sunny, with a high near 33. West wind around 10 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 14. West wind 5 to 7 mph.
Wednesday
Snow likely before 1pm, then snow likely, possibly mixed with rain. Mostly cloudy, with a high near 36. Southwest wind 5 to 7 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of rain and snow before 4am, then a chance of snow after 5am. Mostly cloudy, with a low around 28. Southwest wind around 6 mph. Chance of precipitation is 50%.
Thursday
A chance of snow before 8am, then a chance of rain. Partly sunny, with a high near 42. Southwest wind 6 to 9 mph. Chance of precipitation is 40%.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 29. Southwest wind around 7 mph. Chance of precipitation is 60%.
Friday
A chance of rain and snow. Partly sunny, with a high near 39. North wind 7 to 9 mph. Chance of precipitation is 50%.
Friday Night
Mostly clear, with a low around 24. West wind around 7 mph.
Saturday
Mostly sunny, with a high near 43. Southwest wind 6 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dorchester MA
 42.32°N 71.08°W (Elev. 62 ft)
Last Update:
4:57 pm EST Feb 21, 2026
Forecast Valid:
5pm EST Feb 21, 2026-6pm EST Feb 28, 2026
 
Forecast Discussion
 
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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