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Waltham, Massachusetts Weather

Waltham, Massachusetts — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, tides and marine conditions for Waltham, Middlesex County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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🌊 Marine & Fishing

Tides, marine forecast and fishing conditions near Waltham. Nearest NOAA tide station:

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✈️ Aviation Weather

Flight conditions near Waltham — sourced from the FAA Aviation Weather Center. Nearest reporting station: locating…

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🌿 Air Quality
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NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for Waltham and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
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About Waltham, Massachusetts

Waltham rests upon the gentle slopes that spill towards the Charles River, a waterway that has long been the lifeblood and the silent observer of this Middlesex County locale. It lies 2.7 miles west of Watertown, MA (from Watertown, MA: bearing 278°T), and is situated 9.1 miles west of Greater Boston. The terrain here is not dramatic, but rather a subtle negotiation of low hills and riverine plains, where the air, especially in the late afternoon, carries the damp, fertile scent of water and earth. Mature oaks and maples, their branches like arthritic fingers against the sky, shade the older neighborhoods, while the newer developments spread outwards, seeking the sun on less forgiving inclines. The character of Waltham is a curious blend of the enduring and the ever-changing, a place where the past often peeks out from behind the contemporary, like an old man watching the traffic from his porch. The history of Waltham is deeply entwined with the very notion of American industrial might, a legacy that began with the mills that harnessed the power of the Charles River. It was here that the Waltham-Lowell system, a revolutionary approach to manufacturing, took root, giving rise to the "Watch City" moniker, a testament to its pioneering spirit in precision engineering. Even as the factories have largely quieted, the echoes of that industrious past inform the local economy, which now thrives on education, with its well-regarded university, and a diverse array of businesses that draw upon the region's skilled workforce. The river itself, though no longer powering looms, remains a vital artery, offering recreation and a visual reminder of the forces that shaped Waltham into the place it is today, a place where the clang of machinery has softened into the hum of modern life.

LocationWaltham, Middlesex County, Massachusetts
Coordinates42.376485°N, 71.235611°W
TimezoneEastern Time (America/New_York)
ZIP Code(s)02451, 02452, 02453, 02454
Area Code339, 351, 413, 508, 617, 774, 781, 857, 978
Page generatedJune 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service