National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

57°F

14°C

Humidity 69%
Wind Speed SW 7 mph
Barometer 30.00 in (1015.8 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 31 Mar 11:56 am EDT
Extended Forecast for

Mystic CT

  • This Afternoon

    This Afternoon: A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 60. Southwest wind around 15 mph.

    High: 60 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 11pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 50. Southwest wind 11 to 14 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Rain likely, mainly after 2pm. Partly sunny, with a high near 63. Southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain, mainly before 2am. Low around 39. Northeast wind 7 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain

  • Thursday

    Thursday: A 30 percent chance of rain, mainly before 2pm. Cloudy, with a high near 45. Northeast wind 11 to 13 mph.

    High: 45 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Cloudy, with a low around 38.

    Low: 38 °F

    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 60. Southwest wind around 15 mph.
Tonight
A slight chance of showers and thunderstorms between 11pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 50. Southwest wind 11 to 14 mph. Chance of precipitation is 30%.
Wednesday
Rain likely, mainly after 2pm. Partly sunny, with a high near 63. Southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain, mainly before 2am. Low around 39. Northeast wind 7 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 30 percent chance of rain, mainly before 2pm. Cloudy, with a high near 45. Northeast wind 11 to 13 mph.
Thursday Night
Cloudy, with a low around 38.
Friday
Mostly cloudy, with a high near 56.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Mostly cloudy, with a high near 62.
Saturday Night
A 30 percent chance of rain after 8pm. Mostly cloudy, with a low around 44.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 59.
Sunday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 43.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mystic CT
 41.35°N 71.96°W (Elev. 0 ft)
Last Update:
10:11 am EDT Mar 31, 2026
Forecast Valid:
12pm EDT Mar 31, 2026-6pm EDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation