Local weather forecast

Weather in Deep River, CT

Updated 2026-09-26 11:45 local time · ZIP codes 06417

Light rain shower
Now59°F

Light rain shower

High / Low61° / 56°
Rain chance89%
Wind30 mph
Weather alerts

Active alerts

1
Gale Warning issued September 26 at 4:30AM EDT until September 27 at 6:00PM EDT by NWS Upton NY

* WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and seas 5 to 8 ft. Occasional gusts up to 50 kt possible on the waters E of Orient Point. * WHERE...Long Island Sound east of Port Jefferson and New Haven, and the south shore and eastern bays of Long Island. * WHEN...Until 6 PM EDT Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.

Safety instructions

Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions.

Hourly

Next hours

NowLight rain shower59°39% rain
1 PMLight rain shower58°73% rain
2 PMLight rain shower57°57% rain
3 PMLight rain shower57°75% rain
4 PMLight rain shower57°70% rain
5 PMLight rain shower56°74% rain
6 PMLight rain shower57°74% rain
7 PMLight rain shower57°63% rain
8 PMLight rain shower58°70% rain
9 PMLight rain shower58°66% rain
10 PMLight rain shower58°76% rain
11 PMLight rain shower57°76% rain
Forecast

3-day weather forecast

Today2026-09-26
Light rain shower
61° 56°Light rain shower
Rain 89%Gust 33 mph
Tomorrow2026-09-27
Light rain shower
66° 58°Light rain shower
Rain 93%Gust 36 mph
Monday2026-09-28
Light rain shower
64° 58°Light rain shower
Rain 92%Gust 20 mph
Conditions

Weather details

Feels like42°F
Humidity82%
Pressure29.80 inHg
Visibility6 mi
Wind30 mph NE
Wind gusts48 mph
Precipitation0.01 in
UV index1
Daylight

Sunrise, sunset and moon

Sunrise06:41 AM
Sunset06:40 PM
Moonrise06:28 PM
Moon phaseFull Moon
Next 24 hours

Key weather changes ahead

Warmest hour10 AM · 66°F
Coolest hour5 PM · 56°F
Highest rain chance2 AM · 88%
Strongest gusts6 AM · 54 mph
Practical guide

Weather insights for today

Take an umbrella

Rain chance reaches about 76% over the next 12 hours.

A jacket or sweater is a good idea

It feels like 42°F with winds near 30 mph.

Best window: 12 PM

59°F, 52% rain chance and 29 mph wind.

Use extra caution while driving

Visibility is around 6 mi; gusts may reach 51 mph.

Running conditions are less comfortable

Current temperature is 59°F, wind 30 mph, rain chance up to 76%.

Low UV protection needs

UV index is 1.

Local weather characteristics in Deep River

Connecticut has four distinct seasons, humid summers and cold winters, with coastal influence near Long Island Sound and periodic nor'easters in the colder months.

Deep River is part of the Northeast weather region. The forecast point is near 41.39°N latitude and 72.44°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.

Deep River weather today

Light rain shower and 59°F in Deep River, CT. Today's high is 61°F with a 89% rain chance. Winds are around 30 mph with gusts near 48 mph. Relative humidity is 82%, pressure is 29.80 inHg, and visibility is about 6 miles.

Tonight and tomorrow in Deep River

Sunrise is at 06:41 AM and sunset is at 06:40 PM. Tomorrow's forecast calls for Light rain shower with a high near 66°F and a low near 58°F. The maximum rain chance is 93%.

Nearby

Weather near Deep River

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