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.

Light Snow Fog/Mist

33°F

1°C

Humidity 96%
Wind Speed NE 9 mph
Barometer 29.74 in (1007.0 mb)
Dewpoint 32°F (0°C)
Visibility 4.00 mi
Wind Chill25°F (-4°C)
Last update 20 Feb 7:54 pm EST
Extended Forecast for

Somerville MA

Winter Weather Advisory February 20, 08:29pm until February 21, 07:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory February 20, 08:29pm until February 21, 07:00am

    NOW until 7:00am Sat

    Winter Weather Advisory

  • Tonight

    Low: 24 °F

    Snow/Sleet
    then Snow

  • Saturday

    Saturday: A chance of snow, mainly before 10am. Cloudy, with a high near 29. Northeast wind 5 to 7 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 29 °F

    Chance Snow
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: A slight chance of snow before 11pm. Mostly cloudy, with a low around 21. Light north wind. Chance of precipitation is 20%.

    Low: 21 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow, mainly after 2pm. Cloudy, with a high near 36. Northeast wind 5 to 9 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 36 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Snow, mainly after 10pm. The snow could be heavy at times. Low around 28. Northeast wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 28 °F

    Heavy Snow

  • Monday

    Monday: Snow. The snow could be heavy at times. High near 33. North wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of 4 to 6 inches possible.

    High: 33 °F

    Heavy Snow

  • Monday Night

    Monday Night: Snow likely, mainly before 7pm. Mostly cloudy, with a low around 23. Northwest wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 23 °F

    Snow Likely
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 35. Northwest wind around 9 mph.

    High: 35 °F

    Partly Sunny

Detailed Forecast

Tonight
Snow, possibly mixed with sleet, becoming all snow after 9pm. Low around 24. East wind 5 to 9 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%. Total nighttime snow and sleet accumulation of 1 to 3 inches possible.
Saturday
A chance of snow, mainly before 10am. Cloudy, with a high near 29. Northeast wind 5 to 7 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Saturday Night
A slight chance of snow before 11pm. Mostly cloudy, with a low around 21. Light north wind. Chance of precipitation is 20%.
Sunday
A chance of snow, mainly after 2pm. Cloudy, with a high near 36. Northeast wind 5 to 9 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday Night
Snow, mainly after 10pm. The snow could be heavy at times. Low around 28. Northeast wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Monday
Snow. The snow could be heavy at times. High near 33. North wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of 4 to 6 inches possible.
Monday Night
Snow likely, mainly before 7pm. Mostly cloudy, with a low around 23. Northwest wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 35. Northwest wind around 9 mph.
Tuesday Night
Partly cloudy, with a low around 14. West wind 3 to 6 mph.
Wednesday
A chance of snow after 9am. Mostly cloudy, with a high near 37. South wind 3 to 7 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. South wind around 6 mph. Chance of precipitation is 50%.
Thursday
A chance of rain. Mostly cloudy, with a high near 43. Southwest wind 7 to 9 mph. Chance of precipitation is 50%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Southwest wind around 7 mph. Chance of precipitation is 40%.
Friday
A chance of snow. Mostly sunny, with a high near 39. West wind 6 to 8 mph. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Somerville MA
 42.39°N 71.12°W (Elev. 46 ft)
Last Update:
4:49 pm EST Feb 20, 2026
Forecast Valid:
8pm EST Feb 20, 2026-6pm EST Feb 27, 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