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.

Mostly Cloudy

33°F

1°C

Humidity 85%
Wind Speed SW 12 mph
Barometer 30.08 in (1018.5 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 17 Jan 11:54 pm EST
Extended Forecast for

Charlestown MA

Winter Weather Advisory January 18, 10:00am until January 19, 04:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 31. Light southwest wind.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow likely, mainly after 2pm. Cloudy, with a high near 39. Light and variable wind becoming southwest around 5 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 39 °F

    Chance Snow
    then Snow
    Likely

  • Sunday Night

    Sunday Night: Snow, mainly before 2am. Low around 25. Light and variable wind becoming northwest around 5 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 25 °F

    Snow then
    Snow Likely

  • M.L.King Day

    M.L.King Day: A slight chance of snow before 8am. Mostly sunny, with a high near 34. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 34 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18. West wind around 9 mph.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 25. West wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 25 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 13. West wind around 6 mph.

    Low: 13 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 34. South wind 6 to 9 mph.

    High: 34 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26. Southwest wind around 7 mph.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 31. Light southwest wind.
Sunday
Snow likely, mainly after 2pm. Cloudy, with a high near 39. Light and variable wind becoming southwest around 5 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday Night
Snow, mainly before 2am. Low around 25. Light and variable wind becoming northwest around 5 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
M.L.King Day
A slight chance of snow before 8am. Mostly sunny, with a high near 34. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 18. West wind around 9 mph.
Tuesday
Mostly sunny, with a high near 25. West wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 13. West wind around 6 mph.
Wednesday
Mostly sunny, with a high near 34. South wind 6 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 26. Southwest wind around 7 mph.
Thursday
Mostly cloudy, with a high near 38. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 18. West wind around 7 mph.
Friday
Mostly sunny, with a high near 29. West wind 6 to 9 mph.
Friday Night
Mostly cloudy, with a low around 20. Southwest wind around 6 mph.
Saturday
Partly sunny, with a high near 30. West wind 6 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.38°N 71.07°W (Elev. 3 ft)
Last Update:
1:13 pm EST Jan 17, 2026
Forecast Valid:
12am EST Jan 18, 2026-6pm EST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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