I-495 MA weather conditions near Chelmsford, Massachusetts

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: NA°F 2025-07-07T08:02:40-00:00
• Today 2025-07-07, Partly Sunny then Chance Showers. A chance of showers, mainly between 1pm and 4pm. Partly sunny, with a high near 89. Heat index values as high as 95. Southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
• Tonight 2025-07-07, Chance Showers then Showers Likely and Patchy Fog. A chance of showers before 4am, then a chance of showers and thunderstorms between 4am and 5am, then showers likely and possibly a thunderstorm after 5am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 72. South wind 5 to 7 mph. Chance of precipitation is 60%.
• Tuesday 2025-07-08, Showers Likely and Patchy Fog. Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 3pm, then showers likely and possibly a thunderstorm after 3pm. Patchy fog before 7am. Otherwise, partly sunny and hot, with a high near 90. Heat index values as high as 98. West wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
• Tuesday Night 2025-07-08, Showers Likely. Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 67. Light northeast wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
• Wednesday 2025-07-09, Chance Showers. A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 76. East wind 3 to 6 mph. Chance of precipitation is 30%.
• Wednesday Night 2025-07-09, Slight Chance T-storms then Slight Chance Showers. A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Light northeast wind. Chance of precipitation is 20%.
• Thursday 2025-07-10, Cloudy then Chance Showers. A chance of showers after 1pm. Mostly cloudy, with a high near 75. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 30%.
• Thursday Night 2025-07-10, Chance Showers. A chance of showers. Cloudy, with a low around 63. Light east wind. Chance of precipitation is 40%.
• Friday 2025-07-11, Chance Showers then Mostly Cloudy. A chance of showers before 10am. Mostly cloudy, with a high near 78. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%.
• Friday Night 2025-07-11, Mostly Cloudy. Mostly cloudy, with a low around 63. Light east wind.
• Saturday 2025-07-12, Partly Sunny. Partly sunny, with a high near 81. Calm wind becoming east around 5 mph in the afternoon.
• Saturday Night 2025-07-12, Partly Cloudy. Partly cloudy, with a low around 64. Light southeast wind.
• Sunday 2025-07-13, Mostly Cloudy. Mostly cloudy, with a high near 81. Calm wind becoming southeast around 6 mph in the afternoon.