Groton, Connecticut — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, tides and marine conditions for Groton, Southeastern Connecticut County.
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Live animated radar for Groton and surroundings — RainViewer.
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Groton lies where the Thames River, a sliver of saltwater mirroring the sky, meets the broader expanse of Long Island Sound. It lies 1.2 miles east-south-east of New London, CT (from New London, CT: bearing 109°T), and is situated 2.5 miles south-south-west of Conning Towers Nautilus Park. The land here is a quiet blend of rolling hills, softened by the persistent moisture of the coast, their slopes often cloaked in dense stands of oak and pine. Along the shoreline, salt marshes exhale a briny, damp scent that mingles with the cleaner, sharper tang of the open sea, and the air, especially in the late afternoon, carries a certain weight, a humid stillness that can feel both languid and expectant. The houses, many of them weathered clapboard and shingle, seem to absorb this coastal atmosphere, their paint faded by sun and sea spray, their gardens often wilder than manicured, embracing the encroaching greenery. This is a place etched by the sea and the deep currents of American history, a legacy most prominently held within the imposing structures of the Naval Submarine Base New London, a constant, humming presence that shapes the very rhythm of Groton. The economy, once heavily reliant on shipbuilding and fishing, now finds its anchor in this vital military installation, though the echoes of industry still resonate in the older brick buildings and the weathered piers that dot the waterfront. Beyond the military, the focus shifts to the natural beauty, with parks like Bluff Point State Park offering rugged coastal trails and secluded beaches where the relentless work of the waves has smoothed stones into a pleasing, tactile uniformity. The spirit of innovation, however, remains, a quiet undercurrent that has seen Groton evolve, always tethered to the water that defines its character.
| Location | Groton, Southeastern Connecticut County, Connecticut |
| Coordinates | 41.350098°N, 72.078409°W |
| Timezone | Eastern Time |
| Area Code | 203, 475, 860, 959 |
| Page generated | June 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |