Dangerously Excessive Heat and Humidity Continues from the Midwest and Eastward

Oppressive heat and humidity will continue through Saturday from the Midwest to the East Coast. The Midwest will get a slight reprieve on Sunday as a cold front moves through the area, while excessive heat continues in the East. In addition, strong to severe storms will bring potential for damaging winds, hail, and heavy rain on Saturday. Read More >

Hazardous Weather Conditions

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Current conditions at

Nashua - Boire Field Airport (KASH)

Lat: 42.78°NLon: 71.51°WElev: 180ft.

Fair

80°F

27°C

Humidity	90%
Wind Speed	Calm
Barometer	29.80 in (1009.5 mb)
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	20 Jul 6:56 am EDT

More Information:

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

Extended Forecast for

4 Miles WNW Westford MA

Excessive Heat Warning until July 21, 08:00pm

Click here for hazard details and duration

Excessive Heat Warning

Excessive Heat Warning until July 21, 08:00pm

NOW until
8:00pm Sun

Excessive Heat Warning
Today

Hot
High: 97 °F
Tonight

Partly Cloudy
Low: 78 °F
Sunday

Scattered
T-storms
High: 97 °F
Sunday
Night

Partly Cloudy
Low: 71 °F
Monday

Chance
Showers
High: 84 °F
Monday
Night

Showers
Likely and
Patchy Fog
Low: 64 °F
Tuesday

Showers
Likely and
Patchy Fog
High: 75 °F
Tuesday
Night

Mostly Cloudy
then Patchy
Fog
Low: 60 °F

Detailed Forecast

Today

Mostly sunny and hot, with a high near 97. Heat index values as high as 105. West wind 3 to 6 mph.

Tonight

Partly cloudy, with a low around 78. West wind around 5 mph.

Sunday

Scattered showers and thunderstorms, mainly after 11am. Mostly sunny and hot, with a high near 97. Heat index values as high as 106. West wind 5 to 8 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Partly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening.

Monday

A chance of showers, mainly after 3pm. Partly sunny, with a high near 84. Calm wind. Chance of precipitation is 30%.

Monday Night

Showers likely, with thunderstorms also possible after 9pm. Patchy fog after 1am. Otherwise, cloudy, with a low around 64. Calm wind. Chance of precipitation is 70%.

Tuesday

Showers likely, mainly before 9am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 75. Light north wind. Chance of precipitation is 60%.

Tuesday Night

Patchy fog before 2am, then patchy fog after 3am. Otherwise, mostly cloudy, with a low around 60. Calm wind.

Wednesday

Patchy fog before 7am. Otherwise, mostly sunny, with a high near 81. Light west wind.

Wednesday Night

Patchy fog after 5am. Otherwise, partly cloudy, with a low around 59. Calm wind.

Thursday

Sunny, with a high near 83. Light and variable wind.

Thursday Night

Patchy fog. Otherwise, mostly clear, with a low around 60. Calm wind.

Friday

Patchy fog. Otherwise, sunny, with a high near 85. Calm wind.