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.

A Few Clouds

87°F

31°C

Humidity 46%
Wind Speed SE 12 mph
Barometer 30.13 in (1020.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 11 Aug 1:54 pm EDT
Extended Forecast for

Chelsea MA

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 92. Southeast wind around 6 mph.

    High: 92 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 70. South wind around 6 mph becoming west after midnight.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 93. West wind 5 to 7 mph becoming south in the afternoon.

    High: 93 °F

    Hot

  • Tuesday Night

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

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 93. Southwest wind 6 to 10 mph.

    High: 93 °F

    Hot

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Mostly cloudy, with a low around 72. Southwest wind 6 to 9 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Partly sunny and hot, with a high near 90. West wind 6 to 8 mph. Chance of precipitation is 40%.

    High: 90 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 69. West wind around 6 mph becoming north after midnight.

    Low: 69 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 82. North wind around 8 mph becoming east in the afternoon.

    High: 82 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 92. Southeast wind around 6 mph.
Tonight
Mostly clear, with a low around 70. South wind around 6 mph becoming west after midnight.
Tuesday
Sunny and hot, with a high near 93. West wind 5 to 7 mph becoming south in the afternoon.
Tuesday Night
Mostly clear, with a low around 72. Southwest wind around 6 mph.
Wednesday
Sunny and hot, with a high near 93. Southwest wind 6 to 10 mph.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Mostly cloudy, with a low around 72. Southwest wind 6 to 9 mph. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny and hot, with a high near 90. West wind 6 to 8 mph. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 69. West wind around 6 mph becoming north after midnight.
Friday
Sunny, with a high near 82. North wind around 8 mph becoming east in the afternoon.
Friday Night
Mostly clear, with a low around 63. East wind around 5 mph becoming light and variable in the evening.
Saturday
Sunny, with a high near 84. Light and variable wind becoming southeast 5 to 9 mph in the morning.
Saturday Night
Mostly clear, with a low around 68. Southwest wind around 7 mph.
Sunday
Sunny and hot, with a high near 92. Southwest wind 6 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chelsea MA
 42.38°N 71.04°W (Elev. 49 ft)
Last Update:
2:42 pm EDT Aug 11, 2025
Forecast Valid:
2pm EDT Aug 11, 2025-6pm EDT Aug 17, 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