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: Overcast 69°F 2025-07-13T07:51:00-04:00
Today 2025-07-13, Patchy Fog then Mostly Sunny. Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. Calm wind becoming southeast around 6 mph in the afternoon.
Tonight 2025-07-13, Partly Cloudy then Patchy Fog. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 66. Southeast wind around 6 mph becoming calm in the evening.
Monday 2025-07-14, Chance Showers and Patchy Fog then Chance T-storms. A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 86. Southwest wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night 2025-07-14, Chance T-storms then Mostly Cloudy. A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 70. Light southwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday 2025-07-15, Hot. Mostly sunny and hot, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night 2025-07-15, Mostly Clear. Mostly clear, with a low around 70. Light south wind.
Wednesday 2025-07-16, Hot. Sunny and hot, with a high near 93. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night 2025-07-16, Partly Cloudy. Partly cloudy, with a low around 74. Southwest wind around 6 mph.
Thursday 2025-07-17, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 91. Southwest wind 6 to 8 mph. Chance of precipitation is 30%.
Thursday Night 2025-07-17, Chance T-storms then Mostly Cloudy. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and midnight. Mostly cloudy, with a low around 74. Southwest wind around 6 mph. Chance of precipitation is 30%.
Friday 2025-07-18, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms. Partly sunny and hot, with a high near 90. West wind 5 to 7 mph. Chance of precipitation is 30%.
Friday Night 2025-07-18, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Light northwest wind. Chance of precipitation is 30%.
Saturday 2025-07-19, Mostly Sunny. Mostly sunny, with a high near 85. Light and variable wind becoming southeast around 6 mph in the morning.
Current condition: Overcast 69°F 2025-07-13T07:51:00-04:00 Today 2025-07-13, Patchy Fog then Mostly Sunny. Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. Calm wind becoming southeast around 6 mph in the afternoon.
Tonight 2025-07-13, Partly Cloudy then Patchy Fog. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 66. Southeast wind around 6 mph becoming calm in the evening.
Monday 2025-07-14, Chance Showers and Patchy Fog then Chance T-storms. A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 86. Southwest wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night 2025-07-14, Chance T-storms then Mostly Cloudy. A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 70. Light southwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday 2025-07-15, Hot. Mostly sunny and hot, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night 2025-07-15, Mostly Clear. Mostly clear, with a low around 70. Light south wind.
Wednesday Night 2025-07-16, Partly Cloudy. Partly cloudy, with a low around 74. Southwest wind around 6 mph.Thursday 2025-07-17, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 91. Southwest wind 6 to 8 mph. Chance of precipitation is 30%.
Thursday Night 2025-07-17, Chance T-storms then Mostly Cloudy. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and midnight. Mostly cloudy, with a low around 74. Southwest wind around 6 mph. Chance of precipitation is 30%.
Friday 2025-07-18, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms. Partly sunny and hot, with a high near 90. West wind 5 to 7 mph. Chance of precipitation is 30%.
Friday Night 2025-07-18, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Light northwest wind. Chance of precipitation is 30%.
Saturday 2025-07-19, Mostly Sunny. Mostly sunny, with a high near 85. Light and variable wind becoming southeast around 6 mph in the morning.