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

76°F

24°C

Humidity 82%
Wind Speed S 7 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 14 Jul 9:54 pm EDT
Extended Forecast for

Weymouth MA

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

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 2am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 72. Southwest wind around 6 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, mainly before 8am. Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 88. Southwest wind around 6 mph. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 71. Southwest wind around 6 mph.

    Low: 71 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, mostly sunny and hot, with a high near 93. Heat index values as high as 99. South wind 3 to 7 mph.

    High: 93 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers after 3am. Mostly cloudy, with a low around 73. Southwest wind around 7 mph. Chance of precipitation is 20%.

    Low: 73 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 11am. 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 7pm. Partly cloudy, with a low around 75. Southwest wind around 7 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 91. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 67. North wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly after 2am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 72. Southwest wind around 6 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms, mainly before 8am. Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 88. Southwest wind around 6 mph. Chance of precipitation is 30%.
Tuesday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 71. Southwest wind around 6 mph.
Wednesday
Patchy fog before 7am. Otherwise, mostly sunny and hot, with a high near 93. Heat index values as high as 99. South wind 3 to 7 mph.
Wednesday Night
A slight chance of showers after 3am. Mostly cloudy, with a low around 73. Southwest wind around 7 mph. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms, mainly after 11am. 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 7pm. Partly cloudy, with a low around 75. Southwest wind around 7 mph. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 91. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 67. North wind 3 to 5 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 82. North wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 66. Southeast wind around 5 mph becoming light and variable in the evening.
Sunday
Partly sunny, with a high near 84. 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 82. West wind 6 to 8 mph becoming northeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Weymouth MA
 42.21°N 70.93°W (Elev. 92 ft)
Last Update:
2:03 pm EDT Jul 14, 2025
Forecast Valid:
10pm 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