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Weather data for Darien Downtown is updated regularly with the latest available observations and forecasts.

Now · 2:21 AM

Darien Downtown Weather & Hourly Forecast

United States · Connecticut · 06820

65°F

Mostly cloudy night

Feels like: 68°F

💧 Humidity 88% 🌡 Pressure 30.21 inHg 💨 Wind 2 mph 👁 Visibility 18.5 mi ☁ Clouds 73% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Darien Downtown

Today

3:00 AM

Mostly cloudy night

65° 💧 None 💨 1 mph H 89%30.21 inHg

6:00 AM

Overcast night

64° 💧 None 💨 2 mph H 93%30.21 inHg

9:00 AM

Mostly cloudy

71° 💧 None 💨 2 mph H 82%30.21 inHg

12:00 PM

Mostly cloudy

79° 💧 0.001 in 💨 8 mph H 61%30.18 inHg

3:00 PM

Mostly cloudy

80° 💧 0.002 in 💨 9 mph H 63%30.09 inHg

6:00 PM

Mostly cloudy

77° 💧 0.002 in 💨 10 mph H 73%30.03 inHg

9:00 PM

Mostly cloudy night

75° 💧 None 💨 13 mph H 75%30.00 inHg

Tomorrow

12:00 AM

Partly cloudy night

74° 💧 None 💨 12 mph H 72%29.97 inHg

3:00 AM

Mostly cloudy night

73° 💧 0.010 in 💨 12 mph H 69%29.91 inHg

6:00 AM

Light rain

71° 💧 0.085 in 💨 10 mph H 79%29.88 inHg

9:00 AM

Light rain

71° 💧 0.008 in 💨 7 mph H 91%29.88 inHg

12:00 PM

Mostly cloudy

81° 💧 0.000 in 💨 8 mph H 65%29.85 inHg

3:00 PM

Mostly cloudy

83° 💧 None 💨 9 mph H 58%29.83 inHg

6:00 PM

Overcast

81° 💧 None 💨 6 mph H 61%29.80 inHg

9:00 PM

Overcast night

76° 💧 0.001 in 💨 6 mph H 65%29.83 inHg

Friday

12:00 AM

Overcast night

73° 💧 None 💨 7 mph H 76%29.83 inHg

Today

3:00 AM

Mostly cloudy night

65° 💧 None 💨 1 mph H 89%30.21 inHg

4:00 AM

Overcast night

64° 💧 None 💨 1 mph H 90%30.21 inHg

5:00 AM

Mostly cloudy night

64° 💧 None 💨 1 mph H 91%30.21 inHg

6:00 AM

Overcast night

64° 💧 None 💨 2 mph H 93%30.21 inHg

7:00 AM

Mostly cloudy

65° 💧 None 💨 1 mph H 94%30.21 inHg

8:00 AM

Overcast

68° 💧 None 💨 2 mph H 91%30.21 inHg

9:00 AM

Mostly cloudy

71° 💧 None 💨 2 mph H 82%30.21 inHg

10:00 AM

Mostly cloudy

74° 💧 None 💨 3 mph H 75%30.21 inHg

11:00 AM

Mostly cloudy

76° 💧 None 💨 4 mph H 70%30.21 inHg

12:00 PM

Mostly cloudy

79° 💧 None 💨 8 mph H 61%30.18 inHg

1:00 PM

Overcast

80° 💧 0.000 in 💨 9 mph H 58%30.15 inHg

2:00 PM

Overcast

80° 💧 0.001 in 💨 9 mph H 61%30.12 inHg

3:00 PM

Mostly cloudy

80° 💧 0.000 in 💨 9 mph H 63%30.09 inHg

4:00 PM

Overcast

80° 💧 0.002 in 💨 9 mph H 64%30.09 inHg

5:00 PM

Overcast

78° 💧 0.000 in 💨 8 mph H 70%30.06 inHg

6:00 PM

Mostly cloudy

77° 💧 0.000 in 💨 10 mph H 73%30.03 inHg

7:00 PM

Mostly cloudy

76° 💧 0.001 in 💨 10 mph H 75%30.00 inHg

8:00 PM

Mostly cloudy night

75° 💧 None 💨 12 mph H 76%30.00 inHg

9:00 PM

Mostly cloudy night

75° 💧 None 💨 13 mph H 75%30.00 inHg

10:00 PM

Partly cloudy night

75° 💧 None 💨 13 mph H 75%30.00 inHg

11:00 PM

Partly cloudy night

74° 💧 None 💨 12 mph H 76%29.97 inHg

Tomorrow

12:00 AM

Partly cloudy night

74° 💧 None 💨 12 mph H 72%29.97 inHg

1:00 AM

Mostly cloudy night

74° 💧 None 💨 12 mph H 70%29.94 inHg

2:00 AM

Overcast night

73° 💧 None 💨 12 mph H 70%29.94 inHg

3:00 AM

Mostly cloudy night

73° 💧 None 💨 12 mph H 69%29.91 inHg

4:00 AM

Mostly cloudy night

73° 💧 None 💨 11 mph H 70%29.88 inHg

5:00 AM

Light rain

72° 💧 0.010 in 💨 11 mph H 76%29.88 inHg

6:00 AM

Light rain

71° 💧 0.008 in 💨 10 mph H 79%29.88 inHg

7:00 AM

Light rain

69° 💧 0.047 in 💨 9 mph H 90%29.88 inHg

8:00 AM

Light rain

69° 💧 0.030 in 💨 9 mph H 92%29.88 inHg

9:00 AM

Light rain

71° 💧 0.008 in 💨 7 mph H 91%29.88 inHg

10:00 AM

Mostly cloudy

75° 💧 None 💨 8 mph H 82%29.88 inHg

11:00 AM

Overcast

79° 💧 0.000 in 💨 8 mph H 72%29.88 inHg

12:00 PM

Mostly cloudy

81° 💧 0.000 in 💨 8 mph H 65%29.85 inHg

1:00 PM

Mostly cloudy

82° 💧 None 💨 7 mph H 62%29.85 inHg

2:00 PM

Overcast

83° 💧 None 💨 8 mph H 59%29.83 inHg

3:00 PM

Mostly cloudy

83° 💧 None 💨 9 mph H 58%29.83 inHg

4:00 PM

Mostly cloudy

83° 💧 None 💨 8 mph H 58%29.80 inHg

5:00 PM

Mostly cloudy

82° 💧 None 💨 7 mph H 60%29.80 inHg

6:00 PM

Overcast

81° 💧 None 💨 6 mph H 61%29.80 inHg

7:00 PM

Overcast

79° 💧 None 💨 6 mph H 63%29.80 inHg

8:00 PM

Overcast night

77° 💧 None 💨 6 mph H 63%29.83 inHg

9:00 PM

Overcast night

76° 💧 None 💨 6 mph H 65%29.83 inHg

10:00 PM

Overcast night

74° 💧 0.001 in 💨 6 mph H 72%29.83 inHg

11:00 PM

Overcast night

73° 💧 0.000 in 💨 6 mph H 75%29.83 inHg

Friday

12:00 AM

Overcast night

73° 💧 None 💨 7 mph H 76%29.83 inHg

1:00 AM

Mostly cloudy night

71° 💧 None 💨 8 mph H 78%29.83 inHg

2:00 AM

Mostly cloudy night

70° 💧 None 💨 8 mph H 73%29.85 inHg

3:00 AM

Overcast night

69° 💧 None 💨 6 mph H 70%29.85 inHg

4:00 AM

Mostly cloudy night

68° 💧 None 💨 5 mph H 67%29.88 inHg

5:00 AM

Mostly clear night

66° 💧 None 💨 5 mph H 67%29.88 inHg

6:00 AM

Mostly cloudy night

63° 💧 0.000 in 💨 6 mph H 72%29.91 inHg

7:00 AM

Mostly sunny

63° 💧 None 💨 6 mph H 73%29.94 inHg

8:00 AM

Partly cloudy

65° 💧 None 💨 5 mph H 73%29.94 inHg

9:00 AM

Partly cloudy

67° 💧 None 💨 6 mph H 65%29.97 inHg

10:00 AM

Partly cloudy

70° 💧 None 💨 7 mph H 55%29.97 inHg

11:00 AM

Mostly sunny

72° 💧 None 💨 6 mph H 49%29.97 inHg

12:00 PM

Sunny

74° 💧 None 💨 5 mph H 46%29.97 inHg

1:00 PM

Sunny

75° 💧 None 💨 5 mph H 44%29.94 inHg

2:00 PM

Sunny

76° 💧 None 💨 5 mph H 42%29.94 inHg

3:00 PM

Sunny

76° 💧 None 💨 6 mph H 42%29.94 inHg

4:00 PM

Sunny

76° 💧 None 💨 6 mph H 43%29.94 inHg

5:00 PM

Sunny

75° 💧 None 💨 6 mph H 47%29.94 inHg

6:00 PM

Sunny

74° 💧 None 💨 5 mph H 53%29.94 inHg

7:00 PM

Sunny

71° 💧 None 💨 3 mph H 63%29.97 inHg

8:00 PM

Clear night

68° 💧 None 💨 1 mph H 72%29.97 inHg

11:00 PM

Clear night

69° 💧 None 💨 3 mph H 71%30.03 inHg

Saturday

2:00 AM

Clear night

67° 💧 None 💨 6 mph H 74%30.03 inHg

5:00 AM

Clear night

65° 💧 None 💨 6 mph H 76%30.06 inHg

8:00 AM

Partly cloudy

67° 💧 None 💨 6 mph H 72%30.09 inHg

11:00 AM

Overcast

74° 💧 None 💨 6 mph H 64%30.09 inHg

2:00 PM

Overcast

79° 💧 None 💨 9 mph H 53%30.06 inHg

5:00 PM

Overcast

76° 💧 None 💨 11 mph H 56%30.06 inHg

8:00 PM

Overcast night

72° 💧 None 💨 7 mph H 71%30.06 inHg

11:00 PM

Moderate rain

71° 💧 None 💨 5 mph H 76%30.06 inHg

Sunday

2:00 AM

Partly cloudy night

71° 💧 None 💨 5 mph H 91%30.00 inHg

5:00 AM

Overcast night

72° 💧 None 💨 5 mph H 94%29.97 inHg

8:00 AM

Light rain

72° 💧 None 💨 6 mph H 94%30.00 inHg

11:00 AM

Overcast

77° 💧 None 💨 7 mph H 80%29.97 inHg

2:00 PM

Partly cloudy

81° 💧 None 💨 8 mph H 73%29.94 inHg

5:00 PM

Mostly sunny

83° 💧 None 💨 7 mph H 66%29.91 inHg

8:00 PM

Clear night

77° 💧 None 💨 9 mph H 90%29.94 inHg

11:00 PM

Clear night

76° 💧 None 💨 7 mph H 85%30.00 inHg

Monday

2:00 AM

Mostly clear night

73° 💧 None 💨 6 mph H 86%30.03 inHg

5:00 AM

Mostly clear night

69° 💧 None 💨 5 mph H 82%30.03 inHg

8:00 AM

Sunny

69° 💧 None 💨 7 mph H 66%30.09 inHg

11:00 AM

Mostly cloudy

77° 💧 None 💨 3 mph H 54%30.12 inHg

2:00 PM

Mostly sunny

81° 💧 None 💨 2 mph H 45%30.09 inHg

8:00 PM

Mostly cloudy night

77° 💧 None 💨 3 mph H 55%30.12 inHg

Tuesday

2:00 AM

Overcast night

74° 💧 None 💨 6 mph H 71%30.12 inHg

8:00 AM

Mostly cloudy

70° 💧 None 💨 4 mph H 88%30.12 inHg

2:00 PM

Overcast

71° 💧 None 💨 6 mph H 96%30.15 inHg

8:00 PM

Partly cloudy night

82° 💧 None 💨 11 mph H 65%30.09 inHg

Wednesday

2:00 AM

Clear night

76° 💧 None 💨 10 mph H 90%30.03 inHg

8:00 AM

Mostly sunny

76° 💧 None 💨 10 mph H 93%30.03 inHg

2:00 PM

Mostly sunny

78° 💧 None 💨 11 mph H 88%30.03 inHg

8:00 PM

Partly cloudy night

82° 💧 None 💨 5 mph H 73%30.00 inHg

Thursday

2:00 AM

Clear night

75° 💧 None 💨 10 mph H 60%30.09 inHg

8:00 AM

Sunny

65° 💧 None 💨 9 mph H 73%30.18 inHg

2:00 PM

Sunny

63° 💧 None 💨 10 mph H 75%30.27 inHg

8:00 PM

Clear night

70° 💧 None 💨 2 mph H 49%30.21 inHg

Friday

2:00 AM

Clear night

69° 💧 None 💨 3 mph H 63%30.18 inHg

8:00 AM

Mostly sunny

64° 💧 None 💨 3 mph H 88%30.18 inHg

2:00 PM

Mostly sunny

65° 💧 None 💨 5 mph H 85%30.12 inHg

8:00 PM

Partly cloudy night

79° 💧 None 💨 5 mph H 46%30.06 inHg

Saturday

2:00 AM

Mostly cloudy night

74° 💧 None 💨 3 mph H 64%30.03 inHg

8:00 AM

Overcast

69° 💧 None 💨 8 mph H 72%30.03 inHg

2:00 PM

Partly cloudy

67° 💧 None 💨 13 mph H 70%30.09 inHg

8:00 PM

Partly cloudy night

74° 💧 None 💨 12 mph H 55%30.12 inHg

Sunday

2:00 AM

Partly cloudy night

70° 💧 None 💨 14 mph H 70%30.18 inHg

8:00 AM

Mostly cloudy

66° 💧 None 💨 15 mph H 77%30.24 inHg

2:00 PM

Overcast

65° 💧 None 💨 15 mph H 72%30.27 inHg

8:00 PM

Overcast night

72° 💧 None 💨 10 mph H 69%30.21 inHg

Monday

2:00 AM

Mostly cloudy night

72° 💧 None 💨 6 mph H 83%30.12 inHg

8:00 AM

Sunny

71° 💧 None 💨 5 mph H 95%30.06 inHg

2:00 PM

Overcast

74° 💧 None 💨 10 mph H 91%30.06 inHg

8:00 PM

Partly cloudy night

80° 💧 None 💨 5 mph H 62%30.03 inHg

Tuesday

2:00 AM

Partly cloudy night

73° 💧 None 💨 14 mph H 49%30.09 inHg

8:00 AM

Overcast

64° 💧 None 💨 13 mph H 70%30.18 inHg

2:00 PM

Mostly cloudy

60° 💧 None 💨 10 mph H 72%30.30 inHg

8:00 PM

Mostly clear night

68° 💧 None 💨 5 mph H 53%30.30 inHg

Wednesday

2:00 AM

Clear night

66° 💧 None 💨 2 mph H 61%30.27 inHg

8:00 AM

Mostly sunny

60° 💧 None 💨 3 mph H 87%30.27 inHg

2:00 PM

Partly cloudy

61° 💧 None 💨 3 mph H 88%30.30 inHg

In Darien Downtown and, more broadly, across the state of Connecticut: This evening will feature mostly cloudy skies with mild temperatures ranging from 68 to 73 degrees Fahrenheit. Winds will be light, coming from the northwest at up to 4 mph, with occasional gusts around 3 mph. No precipitation is expected during the evening hours, providing a calm and dry night. Temperatures will remain steady through the night, making for a comfortable end to the day. Conditions should stay quiet, with no significant weather changes anticipated in the next few hours.

15-Day Weather Outlook for Darien Downtown

TomorrowTomorrow

Mostly sunny 86°/71° 💧 None 💨 13 mph

Friday, Sep 11Fri Sep 11

Overcast 78°/63° 💧 0.053 in 💨 8 mph

Saturday, Sep 12Sat Sep 12

Partly cloudy 79°/65° 💧 None 💨 11 mph

Sunday, Sep 13Sun Sep 13

Moderate rain 83°/71° 💧 0.318 in 💨 8 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 81°/69° 💧 None 💨 9 mph

Tuesday, Sep 15Tue Sep 15

Mostly cloudy 77°/70° 💧 None 💨 6 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 82°/76° 💧 0.004 in 💨 11 mph

Thursday, Sep 17Thu Sep 17

Partly cloudy 82°/63° 💧 0.154 in 💨 10 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 70°/64° 💧 None 💨 5 mph

Saturday, Sep 19Sat Sep 19

Overcast 79°/67° 💧 0.027 in 💨 13 mph

Sunday, Sep 20Sun Sep 20

Partly cloudy 74°/65° 💧 None 💨 15 mph

Monday, Sep 21Mon Sep 21

Overcast 74°/71° 💧 0.001 in 💨 10 mph

Tuesday, Sep 22Tue Sep 22

Partly cloudy 80°/60° 💧 0.340 in 💨 14 mph

Wednesday, Sep 23Wed Sep 23

Partly cloudy 68°/60° 💧 0.001 in 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Darien Downtown

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Darien Downtown

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 3:00 AM

PM2.5 Fine particles Fair 10,8µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 13,5µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 66,7µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 7,2µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Darien Downtown

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,0High 🙂Fair

Tomorrow UV 5,1Moderate 😐Moderate

Friday UV 6,4High 😐Moderate

Saturday UV 6,5High 😐Moderate

Sunday UV 4,0Moderate 🙂Fair

Monday UV 6,0High —Unavailable

Tuesday UV 7,0High —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,4 9:00 AMUV 1,4 10:00 AMUV 3,0 11:00 AMUV 4,8 12:00 PMUV 6,1 1:00 PMUV 7,0 2:00 PMUV 6,3 3:00 PMUV 4,8 4:00 PMUV 2,8 5:00 PMUV 1,3 6:00 PMUV 0,2

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Darien Downtown

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · DARIEN DOWNTOWN, CONNECTICUT

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

37/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 84% Real hourly forecast for the best viewing hour.

☾ Moonlight 7% Waning Crescent · Moon about 3° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 88° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

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Forecast data for Darien Downtown were last refreshed today at 2:21 AM. The current forecast period extends through 11/09/2026 at 12:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.