Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Hazardous Weather Conditions

Severe Thunderstorm Watch in effect from September 6, 01:10 PM EDT until September 6, 08:00 PM EDT

Current conditions at

Laurence G Hanscom Field Airport (KBED)

Lat: 42.47°NLon: 71.29°WElev: 132ft.

A Few Clouds

86°F

30°C

Humidity	61%
Wind Speed	S 16 G 25 mph
Barometer	29.89 in (1013.1 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	91°F (33°C)
Last update	6 Sep 1:51 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Lexington MA

Severe T-storm Watch until September 6, 08:00pm

Click here for hazard details and duration

Severe T-storm Watch

Severe T-storm Watch until September 6, 08:00pm
NOW until 8:00pm Sat
Severe T-storm Watch
This Afternoon
High: 88 °F
Severe
Thunderstorms
Tonight
Low: 60 °F
Severe
Thunderstorms
then Chance
Showers
Sunday
High: 67 °F
Showers and
Patchy Fog
then Chance
Showers and
Patchy Fog
Sunday Night
Low: 53 °F
Slight Chance
Showers then
Partly Cloudy
Monday
High: 74 °F
Sunny
Monday Night
Low: 51 °F
Mostly Clear
Tuesday
High: 72 °F
Mostly Sunny
Tuesday Night
Low: 53 °F
Mostly Cloudy

Detailed Forecast

This Afternoon

Scattered showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Mostly sunny, with a high near 88. South wind around 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 5am, then a chance of showers and thunderstorms after 5am. Some of the storms could be severe. Low around 60. West wind 5 to 8 mph becoming north after midnight. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Showers and possibly a thunderstorm before 11am, then showers likely. Patchy fog. High near 67. North wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night

A slight chance of showers before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 53. West wind around 6 mph. Chance of precipitation is 20%.

Monday

Sunny, with a high near 74. West wind around 6 mph.

Monday Night

Mostly clear, with a low around 51. Light north wind.

Tuesday

Mostly sunny, with a high near 72. North wind 6 to 8 mph becoming east in the afternoon.

Tuesday Night

Mostly cloudy, with a low around 53. East wind 3 to 6 mph.

Wednesday

A chance of showers between 11am and 1pm. Partly sunny, with a high near 70. East wind around 7 mph. Chance of precipitation is 30%.

Wednesday Night

Partly cloudy, with a low around 54. Light and variable wind.