Heavy Rainfall Possible Across the Central U.S.; Poor Air Quality Across the Northwest and North Central States

Thunderstorms will produce locally heavy rainfall and possibly some flash flooding across central portions of the country through tonight, with a few strong to locally severe thunderstorms possible. Otherwise, smoke from the wildfires burning across western North America will continue to create poor air quality across northern portions of the country. Read More >

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Overcast

71°F

22°C

Humidity 63%
Wind Speed NE 13 mph
Barometer 30.04 in (1017.1 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 19 Aug 6:56 pm EDT
Extended Forecast for

Old Lyme CT

  • Tonight

    Tonight: A chance of drizzle or light rain, mainly between 11pm and 2am.  Mostly cloudy, with a low around 63. Northeast wind 8 to 10 mph.  Chance of precipitation is 50%.

    Chance Light
    Rain

    Low: 63 °F

  • Monday

    Monday: A slight chance of drizzle or light rain before 3pm.  Mostly cloudy, with a high near 76. Northeast wind around 10 mph.  Chance of precipitation is 20%.

    Slight Chance
    Light Rain

    High: 76 °F

  • Monday
    Night

    Monday Night: Mostly cloudy, with a low around 62. Northeast wind 5 to 8 mph.

    Mostly Cloudy

    Low: 62 °F

  • Tuesday

    Tuesday: A 20 percent chance of showers.  Mostly cloudy, with a high near 75. Northeast wind 7 to 9 mph becoming southeast in the afternoon.

    Slight Chance
    Showers

    High: 75 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 1am, then showers likely and possibly a thunderstorm after 1am.  Cloudy, with a low around 68. Southeast wind 6 to 8 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    Low: 68 °F

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then a chance of thunderstorms after 5pm.  Mostly cloudy, with a high near 83. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely then
    Chance
    T-storms

    High: 83 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 60.

    Mostly Clear

    Low: 60 °F

  • Thursday

    Thursday: Sunny, with a high near 79.

    Sunny

    High: 79 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 58.

    Mostly Clear

    Low: 58 °F

Detailed Forecast

Tonight
A chance of drizzle or light rain, mainly between 11pm and 2am. Mostly cloudy, with a low around 63. Northeast wind 8 to 10 mph. Chance of precipitation is 50%.
Monday
A slight chance of drizzle or light rain before 3pm. Mostly cloudy, with a high near 76. Northeast wind around 10 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 62. Northeast wind 5 to 8 mph.
Tuesday
A 20 percent chance of showers. Mostly cloudy, with a high near 75. Northeast wind 7 to 9 mph becoming southeast in the afternoon.
Tuesday Night
A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 1am, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 68. Southeast wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then a chance of thunderstorms after 5pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Mostly sunny, with a high near 79.
Click Map For Forecast
Point Forecast:
Old Lyme CT
 41.31°N 72.33°W (Elev. 43 ft)
6:42 pm EDT Aug 19, 2018
7pm EDT Aug 19, 2018-6pm EDT Aug 26, 2018
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database