Weather Forecast for New London

Connecticut, United States of America

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Clear

Current Weather - New London: 12°C

Connecticut, United States of America

Clear

Feels like 8°C

Wind

28 km/h NE

Humidity

83%

Pressure

1030 mb

UV Index

0

Visibility

10 km

Overcast

Overcast

Thursday, September 24, 2026

High

18°C

Low

12°C

Rain Chance

12%

Hourly Forecast

Patchy rain nearby 16°C
10:00
Cloudy 17°C
11:00
Cloudy 18°C
12:00
Overcast 18°C
13:00
Overcast 18°C
14:00
Overcast 18°C
15:00
Overcast 18°C
16:00
Overcast 17°C
17:00
Overcast 16°C
18:00
Partly Cloudy 15°C
19:00
Overcast 14°C
20:00
Overcast 14°C
21:00
Overcast 14°C
22:00
Overcast 14°C
23:00
Sep 25

Day Statistics

Maximum Wind

36 km/h

Humidity

70%

Precipitation

0 mm

UV Index

5

Visibility

10 km

Rain Chance

12%

Snow Chance

0%

Sun & Moon

Sunrise

06:38 AM

Sunset

06:42 PM

Moonrise

05:48 PM

Moonset

04:33 AM

Moon Phase

Full Moon

Moon Illumination

99%

Air Quality

PM2.5

7.8

μg/m³

PM10

11.6

μg/m³

NO₂

1.8

μg/m³

O₃

78.8

μg/m³

SO₂

0.5

μg/m³

CO

134.8

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Weather Alerts

Coastal Flood Advisory issued September 23 at 5:12PM EDT until September 25 at 9:00AM EDT by NWS Upton NY

Southwest Suffolk Sep 23, 05:12 PM - Sep 24, 08:00 AM
Severity: Minor Urgency: Expected

* WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Advisory, up to one foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk County. * WHEN...For the High Rip Current Risk, through Friday afternoon. For the Coastal Flood Advisory, during times of high tide Thursday evening and Friday morning. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline. Life- threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Additional Coastal Flood Advisories, likely needed for Friday PM and Saturday AM high tide cycles. Moderate coastal flooding can also not be ruled out for Friday PM and Saturday AM.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.

Event: Coastal Flood Advisory Certainty: Likely Category: Met

Rip Current Statement issued September 23 at 5:12PM EDT until September 25 at 6:00PM EDT by NWS Upton NY

Southeast Suffolk Sep 23, 05:12 PM - Sep 24, 08:00 AM
Severity: Moderate Urgency: Expected

* WHAT...Dangerous rip currents. * WHERE...Southeast Suffolk County. * WHEN...Through Friday afternoon. * IMPACTS...Life-threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Coastal Flood Advisories will likely be needed for Friday PM and Saturday AM high tides. Localized moderate coastal flooding can also not be ruled out.

If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.

Event: Rip Current Statement Certainty: Likely Category: Met

Coastal Flood Advisory issued September 23 at 4:43PM EDT until September 25 at 9:00AM EDT by NWS Upton NY

Southwest Suffolk Sep 23, 04:43 PM - Sep 24, 08:00 AM
Severity: Minor Urgency: Expected

* WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Advisory, up to one foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk County. * WHEN...For the High Rip Current Risk, through Friday afternoon. For the Coastal Flood Advisory, from 7 PM Thursday to 9 AM EDT Friday. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline. Life- threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Additional Coastal Flood Advisories, likely needed for Friday PM and Saturday AM high tide cycles. Moderate coastal flooding can also not be ruled out for Friday PM and Saturday AM.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.

Event: Coastal Flood Advisory Certainty: Likely Category: Met

Rip Current Statement issued September 23 at 4:43PM EDT until September 25 at 6:00PM EDT by NWS Upton NY

Southwest Suffolk Sep 23, 04:43 PM - Sep 24, 08:00 AM
Severity: Moderate Urgency: Expected

* WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Advisory, up to one foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk County. * WHEN...For the High Rip Current Risk, through Friday afternoon. For the Coastal Flood Advisory, from 7 PM Thursday to 9 AM EDT Friday. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline. Life- threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Additional Coastal Flood Advisories, likely needed for Friday PM and Saturday AM high tide cycles. Moderate coastal flooding can also not be ruled out for Friday PM and Saturday AM.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.

Event: Rip Current Statement Certainty: Likely Category: Met

When to visit New London?

Plan your perfect trip with our month-by-month weather guide

⭐ Best months: June July August

January

☀️
4°C
💧
15 Days of rain
❄️
Very heavy snowfall
🥶 Coldest month

February

☀️
4°C
💧
14 Days of rain
❄️
Very heavy snowfall

March

☀️
7°C
💧
18 Days of rain
❄️
Very heavy snowfall

April

☀️
11°C
💧
16 Days of rain
❄️
Moderate snowfall

May

☀️
16°C
💧
13 Days of rain
❄️
No snowfall

June

☀️
21°C
💧
14 Days of rain
❄️
No snowfall
Best time to visit

July

☀️
25°C
💧
11 Days of rain
❄️
No snowfall
Best time to visit
🌵 Driest month

August

☀️
25°C
💧
14 Days of rain
❄️
No snowfall
Best time to visit
🔥 Hottest month

September

☀️
22°C
💧
15 Days of rain
❄️
No snowfall

October

☀️
17°C
💧
18 Days of rain
❄️
Light snow possible

November

☀️
12°C
💧
16 Days of rain
❄️
Moderate snowfall

December

☀️
7°C
💧
18 Days of rain
❄️
Very heavy snowfall
🌧 Wettest month,