Flash Flood Threats in Florida, New Mexico, and New England; Excessive Heat in the Southwest

Flash and small stream flooding threats linger across the southern Rockies today. Strong thunderstorms with heavy downpours may cause local flash flooding in Florida and New England. Excessive heat will continue to impact the southern California, Arizona and Nevada into Thursday. Read More >

Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Light Rain

19°C

66°F

Humidity 87%
Wind Speed SE 19 km/h
Barometer 1021.9 mb (30.18 in)
Dewpoint 17°C (62°F)
Visibility 16 km
Last update 4 Aug 8:54 pm EDT
Extended Forecast for

Charlestown MA

Flash Flood Watch until August 5, 11:00am
Click here for hazard details and duration
Flash Flood Watch
  •  
    Flash Flood Watch until August 5, 11:00am

    NOW until
    11:00am Thu

    Flash Flood Watch

  • Tonight

    Tonight: Showers, mainly after 10pm. The rain could be heavy at times.  Patchy fog. Low around 17. East wind 11 to 14 km/h becoming northeast after midnight. Winds could gust as high as 32 km/h.  Chance of precipitation is 90%. New precipitation amounts between 2 and 3 cm possible.

    Heavy Rain
    and Patchy
    Fog

    Low: 17 °C

  • Thursday

    Thursday: Showers, mainly before 10am. The rain could be heavy at times.  Patchy fog. High near 22. North wind 11 to 16 km/h.  Chance of precipitation is 80%. New precipitation amounts between 1 and 2 cm possible.

    Heavy Rain
    and Patchy
    Fog then
    Chance
    Showers and
    Patchy Fog

    High: 22 °C

  • Thursday
    Night

    Thursday Night: A chance of showers, mainly between 8pm and 9pm.  Mostly cloudy, with a low around 18. East wind 5 to 8 km/h becoming west in the evening.  Chance of precipitation is 30%. New precipitation amounts of less than 1 mm possible.

    Chance
    Showers

    Low: 18 °C

  • Friday

    Friday: Sunny, with a high near 29. West wind 5 to 10 km/h.

    Sunny

    High: 29 °C

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 19. Southwest wind around 10 km/h.

    Partly Cloudy

    Low: 19 °C

  • Saturday

    Saturday: Partly sunny, with a high near 30. Southwest wind 10 to 16 km/h.

    Partly Sunny

    High: 30 °C

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 20. Southwest wind 8 to 13 km/h.

    Mostly Cloudy

    Low: 20 °C

  • Sunday

    Sunday: Mostly sunny, with a high near 28. Southwest wind around 10 km/h becoming southeast in the afternoon.

    Mostly Sunny

    High: 28 °C

Detailed Forecast

Tonight
Showers, mainly after 10pm. The rain could be heavy at times. Patchy fog. Low around 17. East wind 11 to 14 km/h becoming northeast after midnight. Winds could gust as high as 32 km/h. Chance of precipitation is 90%. New precipitation amounts between 2 and 3 cm possible.
Thursday
Showers, mainly before 10am. The rain could be heavy at times. Patchy fog. High near 22. North wind 11 to 16 km/h. Chance of precipitation is 80%. New precipitation amounts between 1 and 2 cm possible.
Thursday Night
A chance of showers, mainly between 8pm and 9pm. Mostly cloudy, with a low around 18. East wind 5 to 8 km/h becoming west in the evening. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm possible.
Friday
Sunny, with a high near 29. West wind 5 to 10 km/h.
Friday Night
Partly cloudy, with a low around 19. Southwest wind around 10 km/h.
Saturday
Partly sunny, with a high near 30. Southwest wind 10 to 16 km/h.
Saturday Night
Mostly cloudy, with a low around 20. Southwest wind 8 to 13 km/h.
Sunday
Mostly sunny, with a high near 28. Southwest wind around 10 km/h becoming southeast in the afternoon.
Sunday Night
Partly cloudy, with a low around 19. Calm wind.
Monday
A chance of showers between 11am and 5pm. Partly sunny, with a high near 27. Southeast wind 5 to 13 km/h. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 20. Southwest wind around 11 km/h.
Tuesday
A chance of showers. Mostly sunny, with a high near 31. Southwest wind 11 to 16 km/h. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 21. Southwest wind 11 to 14 km/h. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 30. Southwest wind 11 to 16 km/h. Chance of precipitation is 40%.
Click Map For Forecast
Point Forecast:
Charlestown MA
 42.38°N 71.07°W (Elev. 1 m)
9:44 pm EDT Aug 4, 2021
9pm EDT Aug 4, 2021-6pm EDT Aug 11, 2021
 
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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