Local weather forecast

Weather in New Canaan, CT

Updated 2026-08-11 11:15 local time · ZIP codes 06840

Sunny
Now86°F

Sunny

High / Low88° / 69°
Rain chance8%
Wind4 mph
Weather alerts

Active alerts

2
Coastal Flood Statement issued August 11 at 2:34AM EDT until August 12 at 12:00AM EDT by NWS Upton NY

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...In Connecticut, Southern Fairfield County. In New York, Southern Westchester County. * WHEN...This evening. * IMPACTS...Brief minor flooding of the most vulnerable locations near the waterfront and shoreline * ADDITIONAL DETAILS...Additional rounds of localized minor flooding are likely with the Wednesday Night and Thursday Night high tides. Minor coastal flooding could be a bit more widespread with the Wednesday night high tide.

Safety instructions

Do not drive through flooded roadways.

Coastal Flood Statement issued August 11 at 2:34AM EDT until August 11 at 9:00PM EDT by NWS Upton NY

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Queens and Southern Nassau Counties. * WHEN...This evening. * IMPACTS...Brief minor flooding of the most vulnerable locations near the waterfront and shoreline. * ADDITIONAL DETAILS...Additional rounds of localized minor flooding are likely with the Wednesday Night and Thursday Night high tides. Minor coastal flooding could be a bit more widespread with the Wednesday night high tide.

Safety instructions

Do not drive through flooded roadways.

Hourly

Next hours

NowSunny86°5% rain
12 PMSunny87°4% rain
1 PMSunny88°3% rain
2 PMSunny85°4% rain
3 PMSunny85°4% rain
4 PMPartly Cloudy84°6% rain
5 PMSunny88°2% rain
6 PMSunny85°3% rain
7 PMSunny82°4% rain
8 PMClear78°4% rain
9 PMClear75°12% rain
10 PMClear73°14% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
88° 69°Sunny
Rain 8%Gust 9 mph
Tomorrow2026-08-12
Sunny
84° 65°Sunny
Rain 57%Gust 8 mph
Thursday2026-08-13
Sunny
85° 65°Sunny
Rain 57%Gust 10 mph
Conditions

Weather details

Feels like95°F
Humidity68%
Pressure29.87 inHg
Visibility6 mi
Wind4 mph WNW
Wind gusts4 mph
Precipitation0.00 in
UV index5
Daylight

Sunrise, sunset and moon

Sunrise05:59 AM
Sunset07:58 PM
Moonrise03:55 AM
Moon phaseNew Moon
Practical guide

Weather insights for today

Umbrella not essential

Rain chance stays relatively low over the next 12 hours (up to 14%).

Choose light, breathable clothing

It feels like 95°F with winds near 4 mph.

Best window: 8 PM

78°F, 4% rain chance and 6 mph wind.

Driving conditions look generally normal

Visibility is around 6 mi; gusts may reach 14 mph.

Running conditions are less comfortable

Current temperature is 86°F, wind 4 mph, rain chance up to 14%.

Moderate UV protection recommended

UV index is 5. Sunscreen and sunglasses are sensible for longer outdoor time.

New Canaan weather today

Sunny and 86°F in New Canaan, CT. Today's high is 88°F with a 8% rain chance. Winds are around 4 mph with gusts near 4 mph. Relative humidity is 68%, pressure is 29.87 inHg, and visibility is about 6 miles.

Tonight and tomorrow in New Canaan

Sunrise is at 05:59 AM and sunset is at 07:58 PM. Tomorrow's forecast calls for Sunny with a high near 84°F and a low near 65°F. The maximum rain chance is 57%.

Nearby

Weather near New Canaan

Connecticut

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