National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Nashua - Boire Field Airport (KASH)

Lat: 42.78°NLon: 71.51°WElev: 180ft.

Partly Cloudy

86°F

30°C

Humidity 53%
Wind Speed S 3 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 30 Jun 3:56 pm EDT
Extended Forecast for

North Chelmsford MA

Extreme Heat Warning July 1, 10:00am until July 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms after 5pm. Mostly cloudy and hot, with a high near 90. Southwest wind around 7 mph. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind around 6 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 96. Heat index values as high as 105. West wind 6 to 8 mph.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. Southwest wind around 6 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 102. West wind 5 to 9 mph, with gusts as high as 20 mph.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 78. West wind 3 to 5 mph.

    Low: 78 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 101. West wind 5 to 9 mph, with gusts as high as 20 mph.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. West wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 96. West wind 3 to 8 mph. Chance of precipitation is 30%.

    High: 96 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms after 5pm. Mostly cloudy and hot, with a high near 90. Southwest wind around 7 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind around 6 mph. Chance of precipitation is 40%.
Wednesday
Mostly sunny and hot, with a high near 96. Heat index values as high as 105. West wind 6 to 8 mph.
Wednesday Night
Mostly clear, with a low around 75. Southwest wind around 6 mph.
Thursday
Sunny and hot, with a high near 102. West wind 5 to 9 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 78. West wind 3 to 5 mph.
Friday
Sunny and hot, with a high near 101. West wind 5 to 9 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 75. West wind around 5 mph becoming calm in the evening.
Independence Day
A chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 96. West wind 3 to 8 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 9pm. Partly cloudy, with a low around 70. Light west wind. Chance of precipitation is 30%.
Sunday
Mostly sunny and hot, with a high near 90. Calm wind becoming northeast around 5 mph in the afternoon.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 66. Light and variable wind. Chance of precipitation is 40%.
Monday
A chance of showers. Partly sunny, with a high near 84. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 64. Light and variable wind.
Tuesday
A chance of showers. Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
North Chelmsford MA
 42.65°N 71.39°W (Elev. 98 ft)
Last Update:
3:34 pm EDT Jun 30, 2026
Forecast Valid:
4pm EDT Jun 30, 2026-6pm EDT Jul 7, 2026
 
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