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Flash Flood Threats in Florida, New Mexico, and New England; Excessive Heat in the Southwest

Flash and small stream flooding threats linger across the southern Rockies today. Strong thunderstorms with heavy downpours may cause local flash flooding in Florida and New England. Excessive heat will continue to impact the southern California, Arizona and Nevada into Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Overcast

64°F

18°C

Humidity 96%
Wind Speed E 15 mph
Barometer 30.10 in (1019.2 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 4 Aug 6:56 pm EDT
Extended Forecast for

Ledyard CTSimilar City Names

Flash Flood Watch August 4, 08:00pm until August 5, 11:00am
Click here for hazard details and duration
Flash Flood Watch

  • Tonight

    Tonight: Rain likely, then rain and possibly a thunderstorm after 10pm. Some of the storms could produce heavy rainfall. Low around 62. Northeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Heavy Rain

    Low: 62 °F

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before noon. Cloudy, with a high near 73. East wind around 8 mph becoming southwest in the afternoon.

    Chance
    Showers

    High: 73 °F

  • Thursday
    Night

    Thursday Night: A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 62. Northwest wind around 5 mph becoming calm in the evening.

    Slight Chance
    Showers then
    Partly Cloudy

    Low: 62 °F

  • Friday

    Friday: Sunny, with a high near 83. Southwest wind 3 to 8 mph.

    Sunny

    High: 83 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 65. Southwest wind 3 to 6 mph.

    Partly Cloudy

    Low: 65 °F

  • Saturday

    Saturday: Partly sunny, with a high near 82.

    Partly Sunny

    High: 82 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of showers after 8pm. Mostly cloudy, with a low around 67.

    Chance
    Showers

    Low: 67 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    Mostly Sunny

    High: 83 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 66.

    Partly Cloudy

    Low: 66 °F

Detailed Forecast

Tonight
Rain likely, then rain and possibly a thunderstorm after 10pm. Some of the storms could produce heavy rainfall. Low around 62. Northeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Thursday
A 30 percent chance of showers, mainly before noon. Cloudy, with a high near 73. East wind around 8 mph becoming southwest in the afternoon.
Thursday Night
A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 62. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 83. Southwest wind 3 to 8 mph.
Friday Night
Partly cloudy, with a low around 65. Southwest wind 3 to 6 mph.
Saturday
Partly sunny, with a high near 82.
Saturday Night
A 30 percent chance of showers after 8pm. Mostly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Mostly sunny, with a high near 85.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Ledyard CTSimilar City Names
 41.44°N 72°W (Elev. 200 ft)
Last Update:
6:33 pm EDT Aug 4, 2021
Forecast Valid:
7pm EDT Aug 4, 2021-6pm EDT Aug 11, 2021
 
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