Station Name: THAMES R AT GROTON, CT.
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 10 feet

Nearest Address:
515 Thames St
Groton, CT 06340
New London County

GPS Coordinates: 41.34870948, -72.0820204

Nearby Water Temperatures

Cold Weather Advisory issued January 22 at 1:07PM EST until January 24 at 10:00AM EST by NWS Upton NY

Effective: Thu January 22, 2026, 1:07 PM
Expires: Fri January 23, 2026, 6:00 AM

* WHAT...Very cold wind chills around 10 below expected. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From 10 PM Friday to 10 AM EST Saturday. * IMPACTS...Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures for any prolonged period of time.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Winter Storm Watch issued January 22 at 3:39PM EST until January 26 at 7:00PM EST by NWS Boston/Norton MA

Effective: Thu January 22, 2026, 3:39 PM
Expires: Fri January 23, 2026, 7:00 AM

* WHAT...Heavy snow possible. Potential for snow accumulations between 6 and 12 inches, with localized accumulations over 12 inches possible. * WHERE...Southern New England. * WHEN...From Sunday morning through Monday evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Monday morning and evening commutes. Travel during the Monday morning commute is likely to be very difficult.

Monitor the latest forecasts for updates on this situation. Persons should delay all travel if possible. Travel Sunday afternoon to Monday morning is likely to become very difficult. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Leave plenty of room between you and the motorist ahead of you, and allow extra time to reach your destination. Avoid sudden braking or acceleration, and be especially cautious on hills or when making turns. Make sure your car is winterized and in good working order.

Cold Weather Advisory issued January 22 at 11:48AM EST until January 24 at 10:00AM EST by NWS Boston/Norton MA

Effective: Thu January 22, 2026, 11:48 AM
Expires: Fri January 23, 2026, 7:00 AM

* WHAT...Very cold wind chills as low as 20 below expected. * WHERE...Much of Southern New England excluding Cape Cod and the Islands and the eastern slopes of the Berkshires. * WHEN...From 10 PM Friday to 10 AM EST Saturday. * IMPACTS...The dangerously cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.