I-495 MA weather conditions near Chelmsford, Massachusetts
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 79°F 2025-07-12T11:51:00-04:00 
This Afternoon 2025-07-12, Slight Chance T-storms. A slight chance of showers between 1pm and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Southeast wind around 6 mph. Chance of precipitation is 20%.Tonight 2025-07-12, Partly Cloudy then Patchy Fog. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 64. Southeast wind around 5 mph becoming calm in the evening.
Sunday 2025-07-13, Patchy Fog then Mostly Sunny. Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 83. Calm wind becoming southeast around 6 mph in the afternoon.
Sunday Night 2025-07-13, Mostly Cloudy. Mostly cloudy, with a low around 65. Southeast wind around 6 mph becoming calm in the evening.Monday 2025-07-14, Slight Chance Showers then Chance T-storms. A slight chance of showers between 10am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. South wind 3 to 6 mph. Chance of precipitation is 30%.
Monday Night 2025-07-14, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 69. Light southwest wind. Chance of precipitation is 30%.
Tuesday 2025-07-15, Hot. Sunny and hot, with a high near 92. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night 2025-07-15, Mostly Clear. Mostly clear, with a low around 70. Light west wind.- Wednesday 2025-07-16, Hot. Mostly sunny and hot, with a high near 92. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night 2025-07-16, Partly Cloudy. Partly cloudy, with a low around 73. South wind 3 to 5 mph.Thursday 2025-07-17, Partly Sunny then Chance Showers. A chance of showers. Partly sunny and hot, with a high near 91. Southwest wind 5 to 8 mph. Chance of precipitation is 30%.
Thursday Night 2025-07-17, Chance Showers. A chance of showers. Mostly cloudy, with a low around 73. Southwest wind around 6 mph. Chance of precipitation is 30%.Friday 2025-07-18, Chance Showers then Chance T-storms. A chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind 6 to 8 mph. Chance of precipitation is 40%.