Hazardous Weather Conditions

Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

A Few Clouds

73°F

23°C

Humidity 84%
Wind Speed SW 12 mph
Barometer 29.90 in (1012.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 19 May 11:54 pm EDT
Extended Forecast for

Cambridge MA

Heat Advisory May 20, 12:09am until May 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory May 20, 12:09am until May 20, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Overnight

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a chance of showers after 5pm.  Mostly sunny and hot, with a high near 92. West wind 8 to 14 mph.  Chance of precipitation is 30%.

    High: 92 °F

    Sunny then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 56. West wind 7 to 9 mph.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 68. North wind around 8 mph.

    High: 68 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49. Light north wind.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. South wind 5 to 7 mph becoming calm  after midnight.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers.  Mostly cloudy, with a high near 62. Calm wind becoming southeast 5 to 8 mph in the morning.  Chance of precipitation is 40%.

    High: 62 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 71. Southwest wind around 6 mph.
Wednesday
A chance of showers before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a chance of showers after 5pm. Mostly sunny and hot, with a high near 92. West wind 8 to 14 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 56. West wind 7 to 9 mph.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 68. North wind around 8 mph.
Thursday Night
Partly cloudy, with a low around 49. Light north wind.
Friday
Mostly sunny, with a high near 69. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 50. South wind 5 to 7 mph becoming calm after midnight.
Saturday
A chance of showers. Mostly cloudy, with a high near 62. Calm wind becoming southeast 5 to 8 mph in the morning. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 48. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Sunday
A chance of showers. Mostly cloudy, with a high near 61. East wind 5 to 10 mph. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 49. East wind 3 to 6 mph. Chance of precipitation is 50%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 67. North wind 3 to 7 mph. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 52. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 72. Calm wind becoming northeast 5 to 7 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Cambridge MA
 42.37°N 71.13°W (Elev. 3 ft)
8:07 pm EDT May 19, 2026
12am EDT May 20, 2026-6pm EDT May 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database