Heavy Rainfall And Severe Weather Potential From The Great Lakes and Ohio Valley to South Central Plains; Western Fire Weather Threats Remain Elevated

A low pressure system and front moving through the Mississippi Valley may yield heavy to excessive rainfall and the threat for some severe thunderstorms from parts of the Great Lakes and Ohio Valley to South Central Plains. Fire weather threats will remain elevated across the Northwest into the northern Rockies, as a system from the Pacific moves into and through the area over the next few days. Read More >

Hazardous Weather Conditions

Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Partly Cloudy

32°C

90°F

Humidity 50%
Wind Speed W 19 G 30 km/h
Barometer 1014.9 mb (29.97 in)
Dewpoint 21°C (69°F)
Visibility 16 km
Heat Index35°C (95°F)
Last update 16 Aug 12:54 pm EDT
Extended Forecast for

Cambridge MA

  • This
    Afternoon

    This Afternoon: Isolated showers and thunderstorms.  Mostly sunny, with a high near 33. Northwest wind around 14 km/h.  Chance of precipitation is 20%.

    Isolated
    T-storms

    High: 33 °C

  • Tonight

    Tonight: Mostly clear, with a low around 21. Northeast wind 3 to 8 km/h.

    Mostly Clear

    Low: 21 °C

  • Friday

    Friday: Showers and thunderstorms likely, mainly between 2pm and 3pm. Some of the storms could produce gusty winds and heavy rain.  Increasing clouds, with a high near 28. East wind 5 to 11 km/h.  Chance of precipitation is 60%. New rainfall amounts between 2.5 and 5 mm possible.

    Heavy Rain

    High: 28 °C

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms, mainly between 1am and 4am. Some of the storms could produce gusty winds and heavy rain.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 23. South wind 11 to 13 km/h.  Chance of precipitation is 30%. New rainfall amounts between 5 and 7.5 mm possible.

    Heavy Rain
    and Patchy
    Fog

    Low: 23 °C

  • Saturday

    Saturday: A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could produce heavy rain.  Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 28. West wind 10 to 14 km/h.  Chance of precipitation is 60%.

    Heavy Rain
    and Patchy
    Fog

    High: 28 °C

  • Saturday
    Night

    Saturday Night: A chance of showers, mainly before 7pm.  Mostly cloudy, with a low around 18. Chance of precipitation is 30%.

    Chance
    Showers then
    Mostly Cloudy

    Low: 18 °C

  • Sunday

    Sunday: Partly sunny, with a high near 23.

    Partly Sunny

    High: 23 °C

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 15.

    Partly Cloudy

    Low: 15 °C

  • Monday

    Monday: Mostly sunny, with a high near 24.

    Mostly Sunny

    High: 24 °C

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms. Mostly sunny, with a high near 33. Northwest wind around 14 km/h. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 21. Northeast wind 3 to 8 km/h.
Friday
Showers and thunderstorms likely, mainly between 2pm and 3pm. Some of the storms could produce gusty winds and heavy rain. Increasing clouds, with a high near 28. East wind 5 to 11 km/h. Chance of precipitation is 60%. New rainfall amounts between 2.5 and 5 mm possible.
Friday Night
A chance of showers and thunderstorms, mainly between 1am and 4am. Some of the storms could produce gusty winds and heavy rain. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 23. South wind 11 to 13 km/h. Chance of precipitation is 30%. New rainfall amounts between 5 and 7.5 mm possible.
Saturday
A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could produce heavy rain. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 28. West wind 10 to 14 km/h. Chance of precipitation is 60%.
Saturday Night
A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 23.
Sunday Night
Partly cloudy, with a low around 15.
Monday
Mostly sunny, with a high near 24.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 25.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 19. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 27. Chance of precipitation is 40%.
Click Map For Forecast
Point Forecast:
Cambridge MA
 42.37°N 71.13°W (Elev. 1 m)
12:55 pm EDT Aug 16, 2018
1pm EDT Aug 16, 2018-6pm EDT Aug 22, 2018
 
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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