Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Heavy rain and higher elevation snow continue for the Northwest, fire danger continues in Southern California

A series of Pacific storms will bring strong winds, heavy rain, and mountain snow to the Pacific Northwest and northern Rockies through Sunday. Heavy rainfall and flooding is possible from the Mississippi Valley to the Deep South and Southeast U.S. this weekend and into early next week. Dry winds will prolong the fire weather threat for Southern California for several days. Read More >

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

69°F

21°C

Humidity 70%
Wind Speed S 5 mph
Barometer 30.37 in (1028.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 22 Oct 3:56 pm EDT
Extended Forecast for

Old Lyme CT

  • Tonight

    Tonight: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 50. South wind around 6 mph becoming calm  in the evening.

    Mostly Clear
    then Patchy
    Fog

    Low: 50 °F

  • Monday

    Monday: Isolated showers after 2pm.  Patchy fog before 10am.  Otherwise, partly sunny, with a high near 70. Light southeast wind increasing to 5 to 9 mph in the morning.  Chance of precipitation is 20%.

    Patchy Fog
    then Isolated
    Showers

    High: 70 °F

  • Monday
    Night

    Monday Night: Areas of drizzle and fog with isolated showers before 7pm, then areas of drizzle between 7pm and 1am, then drizzle with light rain likely after 1am.  Mostly cloudy, with a low around 62. Southeast wind 8 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    Areas Drizzle
    and Areas Fog
    then Drizzle
    and Areas Fog

    Low: 62 °F

  • Tuesday

    Tuesday: Drizzle and possibly a thunderstorm before 7am, then rain and possibly a thunderstorm after 7am. Some of the storms could produce gusty winds.  High near 71. South wind 14 to 18 mph, with gusts as high as 33 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Rain

    High: 71 °F

  • Tuesday
    Night

    Tuesday Night: Rain and possibly a thunderstorm.  Low around 61. South wind 16 to 18 mph, with gusts as high as 32 mph.  Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Rain

    Low: 61 °F

  • Wednesday

    Wednesday: Rain likely, mainly before 10am.  Cloudy, with a high near 67. Chance of precipitation is 60%. New precipitation amounts between three quarters and one inch possible.

    Rain Likely

    High: 67 °F

  • Wednesday
    Night

    Wednesday Night: A 40 percent chance of showers before 1am.  Mostly cloudy, with a low around 51.

    Chance
    Showers

    Low: 51 °F

  • Thursday

    Thursday: A 30 percent chance of showers after 7am.  Partly sunny, with a high near 62.

    Chance
    Showers

    High: 62 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 47.

    Partly Cloudy

    Low: 47 °F

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 50. South wind around 6 mph becoming calm in the evening.
Monday
Isolated showers after 2pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 70. Light southeast wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 20%.
Monday Night
Areas of drizzle and fog with isolated showers before 7pm, then areas of drizzle between 7pm and 1am, then drizzle with light rain likely after 1am. Mostly cloudy, with a low around 62. Southeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tuesday
Drizzle and possibly a thunderstorm before 7am, then rain and possibly a thunderstorm after 7am. Some of the storms could produce gusty winds. High near 71. South wind 14 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Rain and possibly a thunderstorm. Low around 61. South wind 16 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
Rain likely, mainly before 10am. Cloudy, with a high near 67. Chance of precipitation is 60%. New precipitation amounts between three quarters and one inch possible.
Wednesday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 51.
Thursday
A 30 percent chance of showers after 7am. Partly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Partly sunny, with a high near 67.
Click Map For Forecast
Point Forecast:
Old Lyme CT
 41.31°N 72.33°W (Elev. 43 ft)
1:18 pm EDT Oct 22, 2017
4pm EDT Oct 22, 2017-6pm EDT Oct 29, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database