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New London, CT Weather
Current conditions
Forecast for this hour (no station report in the last two hours)
Forecast
10-day-
Sunday
Areas of frost before 9am. Sunny. High near 62, with temperatures falling to around 59 in the afternoon.
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Sunday Night
Clear, with a low around 40.
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Monday
Sunny, with a high near 66.
National Weather Service forecast updated 2 days ago.
Hourly
Hourly forecast- Now61°
- 3 PM62°
- 4 PM61°
- 5 PM59°
- 6 PM55°
- 7 PM51°
- 8 PM50°
- 9 PM48°
- 10 PM46°
- 11 PM44°
- Mon12 AM43°
- 1 AM42°
- 2 AM42°
- 3 AM42°
- 4 AM41°
- 5 AM41°
- 6 AM40°
- 7 AM40°
- 8 AM41°
- 9 AM46°
- 10 AM52°
- 11 AM58°
- 12 PM61°
- 1 PM63°
Daily forecast
DetailsRadar
Full mapWeather news near New London
More weather news-
A warmer Tuesday in Connecticut with a mix of sun and clouds. Here's when the chill sets in again.Leaves begin to change color at a home on Sport Hill Road in Easton on Oct. 7, 2026. Another day of seasonable fall weather is in store for Connecticut Tuesday — but expect it to be a little cloudier and breezier than…
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Connecticut warms back toward 60 Monday after weekend chill. Here's when rain returns.Connecticut starts the week with a chilly morning and plenty of sunshine, but the weekend’s deep chill is easing. Temperatures will climb back toward 60 degrees Monday, with lighter winds and dry weather statewide. The…
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Connecticut wakes to 20s and 30s Sunday before sunshine pushes highs into 50s. Here's the forecast.Saturday brought the coldest air of the season so far, and Sunday keeps the autumn chill in place across Connecticut. Sunshine returns statewide, winds ease considerably and temperatures make a modest recovery, although…
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Dangerous Freeze Warnings for 7 Counties in New York as Temperatures PlummetFreeze Warnings take effect tonight across parts of New York, with lows in the upper 20s to around 30 expected from the Hudson Valley to Buffalo. The warnings run into 9 a.m. EDT Sunday. Frost and freeze conditions…
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Saturday will feel more like November in Connecticut as temperatures dive. Here's how cold it'll be.The change will be hard to miss Saturday morning. Temperatures will tumble behind Friday’s cold front, with readings starting in the 30s and 40s across much of Connecticut. A few lingering showers are possible early…
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A warm, stormy Friday in Connecticut before big temperature drop arrivesFriday will start on a damp note across Connecticut, with showers likely during the morning and a few pockets of fog possible. The rain should be most widespread early, making for a wet morning commute, but there may be…
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Enjoy Thursday’s 60s, Connecticut. The weekend brings a big chill with sub-freezing temps likelyEnjoy Thursday’s mild weather while it lasts. Connecticut gets sunshine and temperatures in the 60s before rain arrives Thursday night and a much colder blast sends temperatures tumbling by the weekend. The morning…
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Enjoy a sunny, warm Wednesday in Connecticut. Changes arrive soon after.Connecticut gets (earns?) one more warm, almost summerlike afternoon before October reminds us exactly where we are on the calendar. Wednesday will be the warmest day of the week, with sunshine pushing temperatures well…
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Connecticut warms into the 70s Tuesday before a sharp weekend chill. Here's the latest forecastA quiet stretch of October weather continues across Connecticut Tuesday, although the day will start with plenty of clouds before brighter skies gradually emerge. Temperatures remain mild for early October, and the…
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Cold Halloween night expected in Connecticut. See full holiday forecastAccuWeather just released its Halloween weekend forecast, predicting "a spooky mix of chilly temperatures, gusty winds, rain and even mountain snow" across the country. While the weather service predicts New England…
Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- SunGood (50)
- MonModerate (56)
New London-Groton, CT reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyNorwich Public Utility Plant, records since 1956. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Middletown 51 km
- Norwich 19 km
- Coventry 52 km
- Glastonbury 58 km
- South Kingstown 49 km
- Manchester 58 km
- North Kingstown 57 km
- Mansfield City 47 km
- Windham 39 km
- Guilford 49 km
- Montville Center 14 km
- Waterford 3 km
Forecasters' discussion
From the National Weather Service office in OKX, issued 10 hrs ago
What Has Changed
No significant changes made since the previous update.
Key Messages
1) Frost Advisory in effect this morning for coastal CT and far eastern LI.
2) High pressure largely in control through the upcoming week.
Key Message 1
Very favorable conditions exist this morning for radiational cooling and as a result, more typical spots have cooled significantly, some spots into the upper 20s. While the growing season has ended across the interior, it has yet to do so at the coast (Nov 1 or 11). Thus, a frost advisory in in effect for these areas once again.
Elsewhere, lows will range from the upper 20s across some of the interior, to as warm as the 40s across the NYC metro. These readings are about 3 to 5 degrees below normal for most locations.
Warm advection with building heights aloft should result in warmer temperatures tonight and less coverage of frost.
.KEY MESSAGE 2... An anomalously strong upper ridge from the Lower Mississippi Valley into the Great Lakes will translate east into Monday. A the same time, a strong upper low tracking across central and eastern Canada will suppress the upper ridge to the south, sending a cold front across the area Monday night. The frontal passage will be dry. Otherwise, the forecast area will be dominated by high pressure through the week.
Highs will be in the 60s Sunday and Monday, possibly getting to around 70 in the NYC/NJ metro on Monday. It will then cool down behind the cold front Monday night with highs mainly in the 50s for Tuesday and Wednesday. This will be a few degrees above normal. Frost coverage at the coast, where the growing season remains in effect, looks to be patchy at this time.
It warms up for the second half of the week with temperatures projecting to be well above normal by next Friday.
Outlook For 06z Monday Through Thursday
Sunday night-Thursday: VFR.
Detailed information, including hourly TAF wind component forecasts, can be found at: https:/www.weather.gov/zny/n90
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use. How to use Weather