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

82°F

28°C

Humidity 72%
Wind Speed S 13 mph
Barometer 30.02 in (1016.4 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 14 Jul 3:54 pm EDT
Extended Forecast for

Charlestown MA

Heat Advisory July 15, 11:00am until July 17, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms. Partly sunny, with a high near 85. Southwest wind around 7 mph. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 73. Southwest wind around 6 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers before 9am. Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 89. Heat index values as high as 95. South wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 89 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72. Southwest wind 3 to 6 mph.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 92. South wind 3 to 7 mph.

    High: 92 °F

    Hot

  • Wednesday Night

    Wednesday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 75. Southwest wind around 7 mph. Chance of precipitation is 20%.

    Low: 75 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers between 10am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 90. Southwest wind 6 to 10 mph. Chance of precipitation is 30%.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 77. Southwest wind around 7 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. West wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Southwest wind around 7 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 73. Southwest wind around 6 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of showers before 9am. Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 89. Heat index values as high as 95. South wind 3 to 6 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 72. Southwest wind 3 to 6 mph.
Wednesday
Mostly sunny and hot, with a high near 92. South wind 3 to 7 mph.
Wednesday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 75. Southwest wind around 7 mph. Chance of precipitation is 20%.
Thursday
A chance of showers between 10am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 90. Southwest wind 6 to 10 mph. Chance of precipitation is 30%.
Thursday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 77. Southwest wind around 7 mph. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. West wind 6 to 8 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 68. North wind 3 to 5 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 82. North wind 5 to 8 mph becoming east in the afternoon.
Saturday Night
Partly cloudy, with a low around 67. Southeast wind around 6 mph becoming light and variable in the evening.
Sunday
Partly sunny, with a high near 83. South wind 3 to 8 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 68. South wind 5 to 7 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.36°N 71.07°W (Elev. 13 ft)
Last Update:
2:03 pm EDT Jul 14, 2025
Forecast Valid:
4pm EDT Jul 14, 2025-6pm EDT Jul 21, 2025
 
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