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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

25°F

-4°C

Humidity 50%
Wind Speed NW 6 mph
Barometer 30.20 in (1022.5 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 18 Mar 2:56 am EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Overnight

    Overnight: Mostly clear, with a low around 24. Wind chill values between 15 and 20. Northwest wind around 9 mph.

    Low: 24 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 37. Wind chill values between 15 and 25. Northwest wind around 6 mph becoming light and variable.

    High: 37 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 29. South wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 41. South wind 3 to 8 mph.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35. South wind around 5 mph.

    Low: 35 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: A 40 percent chance of rain before 2pm. Partly sunny, with a high near 49.

    High: 49 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 24. Wind chill values between 15 and 20. Northwest wind around 9 mph.
Wednesday
Increasing clouds, with a high near 37. Wind chill values between 15 and 25. Northwest wind around 6 mph becoming light and variable.
Wednesday Night
Increasing clouds, with a low around 29. South wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 41. South wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 35. South wind around 5 mph.
Friday
Mostly sunny, with a high near 48.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40.
Saturday
A 40 percent chance of rain before 2pm. Partly sunny, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
A 40 percent chance of rain after 8am. Mostly cloudy, with a high near 52.
Sunday Night
A 30 percent chance of rain. Partly cloudy, with a low around 38.
Monday
Sunny, with a high near 46.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Conning Towers-Nautilus Park CT
 41.36°N 72.08°W (Elev. 79 ft)
Last Update:
2:30 am EDT Mar 18, 2026
Forecast Valid:
3am EDT Mar 18, 2026-6pm EDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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