Chelmsford, Massachusetts — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, tides and marine conditions for Chelmsford, Middlesex County.
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Chelmsford lies in a landscape shaped by the slow work of glaciers and the persistent flow of water. It lies 3.5 miles south-west of Lowell, MA (from Lowell, MA: bearing 228°T), and is situated 5.8 miles west-north-west of Billerica. Rolling hills, softened by centuries of cultivation and forest growth, define its terrain, giving way to the broad, often placid expanse of the Merrimack River along its northern edge. The air here carries the scent of pine and damp earth, especially after a rain, and the light at dusk often settles in a deep, honeyed glow that lingers long after the sun has dipped below the western treeline. Small brooks and vernal pools dot the woods, their quiet trickle a constant counterpoint to the rustle of leaves and the distant hum of traffic. The history of Chelmsford is deeply entwined with the early days of settlement in Massachusetts, a place that once served as a vital agricultural hub. Its economy, while diversified now, retains echoes of its past, with remnants of mills and manufacturing alongside modern businesses. The town has seen waves of innovation, from its agricultural roots to its role in the burgeoning industries of the 19th and 20th centuries. Chelmsford’s character is one of steady growth, a place where the past is not so much a relic as a foundation, evident in the enduring architecture of its older buildings and the familiar cadence of daily life that unfolds with a quiet, enduring rhythm.
| Location | Chelmsford, Middlesex County, Massachusetts |
| Coordinates | 42.599814°N, 71.367284°W |
| Timezone | Eastern Time (America/New_York) |
| ZIP Code(s) | 01824 |
| Area Code | 339, 351, 413, 508, 617, 774, 781, 857, 978 |
| Page generated | June 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |