Chelmsford, Massachusetts Weather
Chelmsford, Massachusetts — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast for Chelmsford, Middlesex County.
Tides, marine forecast and fishing conditions near Chelmsford. Tide source:
Flight conditions near Chelmsford. Data source: locating…
About Chelmsford, Massachusetts
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.
Live animated radar for Chelmsford and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| 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 | July 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Chelmsford, Massachusetts Weather Page
This page provides live weather conditions and forecasts for Chelmsford, Massachusetts, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, real-time aviation weather (live METAR and TAF reports from the nearest reporting airport, with a modeled estimate shown when no station is in range), precipitation radar and NOAA GOES-16 satellite imagery. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Chelmsford includes coordinates 42.599814°N, 71.367284°W, situated in Middlesex County. ZIP code 01824. Telephone area code: 339, 351, 413, 508, 617, 774, 781, 857, 978. Timezone: Eastern Time (America/New_York).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. Aviation data is sourced from aviationweather.gov (NOAA), with a modeled estimate used where no nearby reporting station is available. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
