I-495 MA weather conditions near Merrimac, Massachusetts
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: A Few Clouds 95°F 2025-07-29T17:54:00-04:00 
Tonight 2025-07-29, Mostly Clear. Mostly clear, with a low around 66. Northwest wind around 6 mph becoming calm in the evening.
Wednesday 2025-07-30, Hot. Sunny and hot, with a high near 92. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night 2025-07-30, Chance Showers. A chance of showers and thunderstorms. Increasing clouds, with a low around 65. Light and variable wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday 2025-07-31, Heavy Rain. Showers likely, with thunderstorms also possible after 5pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 73. East wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night 2025-07-31, Heavy Rain. Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 58. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 70%.
Friday 2025-08-01, Chance Showers. A chance of showers. Partly sunny, with a high near 70. Northeast wind around 7 mph. Chance of precipitation is 50%.
Friday Night 2025-08-01, Partly Cloudy. Partly cloudy, with a low around 55. Light and variable wind.- Saturday 2025-08-02, Sunny. Sunny, with a high near 79. Light and variable wind becoming north around 5 mph in the morning.
Saturday Night 2025-08-02, Clear. Clear, with a low around 57. Light and variable wind.
Sunday 2025-08-03, Sunny. Sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.- Sunday Night 2025-08-03, Mostly Clear. Mostly clear, with a low around 61. Southwest wind around 6 mph.
Monday 2025-08-04, Mostly Sunny. Mostly sunny, with a high near 85. Light and variable wind becoming south around 5 mph in the afternoon.- Monday Night 2025-08-04, Partly Cloudy. Partly cloudy, with a low around 61. South wind 3 to 5 mph.
- Tuesday 2025-08-05, Mostly Sunny. Mostly sunny, with a high near 83. Calm wind becoming southeast around 6 mph in the afternoon.