I-495 MA weather conditions near Merrimac, Massachusetts

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Fair 70°F 2025-06-21T20:54:00-04:00
• Tonight 2025-06-21, Mostly Cloudy. Mostly cloudy, with a low around 65. South wind around 5 mph becoming calm.
• Sunday 2025-06-22, Chance T-storms then Mostly Sunny. A chance of showers and thunderstorms, mainly before 10am. Partly sunny and hot, with a high near 94. Heat index values as high as 98. Southwest wind 11 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
• Sunday Night 2025-06-22, Partly Cloudy. Partly cloudy, with a low around 69. West wind around 5 mph becoming calm in the evening.
• Monday 2025-06-23, Hot. Mostly sunny and hot, with a high near 90. Calm wind becoming southeast around 6 mph in the afternoon.
• Monday Night 2025-06-23, Mostly Clear. Mostly clear, with a low around 73. Light and variable wind becoming west around 5 mph after midnight.
• Tuesday 2025-06-24, Hot. Sunny and hot, with a high near 100. West wind 5 to 7 mph.
• Tuesday Night 2025-06-24, Mostly Clear. Mostly clear, with a low around 74. West wind around 5 mph.
• Wednesday 2025-06-25, Mostly Sunny. Mostly sunny, with a high near 85. North wind around 6 mph becoming east in the afternoon.
• Wednesday Night 2025-06-25, Mostly Cloudy then Chance Showers. A chance of showers after 4am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%.
• Thursday 2025-06-26, Chance Showers. A chance of showers before 8am, then a chance of showers after 2pm. Partly sunny, with a high near 71. East wind around 6 mph. Chance of precipitation is 30%.
• Thursday Night 2025-06-26, Chance Showers. A chance of showers. Mostly cloudy, with a low around 60. East wind 3 to 5 mph. Chance of precipitation is 40%.
• Friday 2025-06-27, Chance Showers. A chance of showers. Mostly cloudy, with a high near 70. East wind around 7 mph. Chance of precipitation is 40%.
• Friday Night 2025-06-27, Chance Showers. A chance of showers. Mostly cloudy, with a low around 59. Southeast wind 3 to 6 mph. Chance of precipitation is 40%.
• Saturday 2025-06-28, Chance Showers. A chance of showers. Mostly cloudy, with a high near 71. Southeast wind around 7 mph. Chance of precipitation is 40%.