Weather Forecast for New Haven
Connecticut, United States of America
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Current Weather - New Haven: 10°C
Current Weather - New Haven: 10°C
Connecticut, United States of America
Sunny
Feels like 7°C
Wind
23 km/h NNE
Humidity
84%
Pressure
1031 mb
UV Index
0
Visibility
10 km
Sunny
Thursday, September 24, 2026
High
20°C
Low
10°C
Rain Chance
7%
Hourly Forecast
19°C
19°C
20°C
20°C
18°C
17°C
16°C
15°C
14°C
13°C
12°C
Day Statistics
Maximum Wind
26 km/h
Humidity
65%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
7%
Snow Chance
0%
Sun & Moon
Sunrise
06:41 AM
Sunset
06:46 PM
Moonrise
05:51 PM
Moonset
04:36 AM
Moon Phase
Full Moon
Moon Illumination
99%
Air Quality
PM2.5
6.5
μg/m³
PM10
8.9
μg/m³
NO₂
3.8
μg/m³
O₃
72.4
μg/m³
SO₂
0.8
μg/m³
CO
147
μg/m³
Overcast
Friday, September 25, 2026
High
20°C
Low
12°C
Rain Chance
11%
Hourly Forecast
12°C
12°C
12°C
12°C
12°C
12°C
13°C
13°C
13°C
14°C
15°C
16°C
18°C
19°C
20°C
19°C
19°C
19°C
18°C
17°C
17°C
16°C
15°C
14°C
Day Statistics
Maximum Wind
30 km/h
Humidity
55%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
11%
Snow Chance
0%
Sun & Moon
Sunrise
06:42 AM
Sunset
06:44 PM
Moonrise
06:11 PM
Moonset
05:38 AM
Moon Phase
Full Moon
Moon Illumination
100%
Air Quality
PM2.5
4.3
μg/m³
PM10
5.5
μg/m³
NO₂
4.5
μg/m³
O₃
73.9
μg/m³
SO₂
0.8
μg/m³
CO
150.9
μg/m³
Patchy rain nearby
Saturday, September 26, 2026
High
16°C
Low
12°C
Rain Chance
86%
Hourly Forecast
15°C
14°C
13°C
12°C
13°C
13°C
12°C
12°C
13°C
13°C
14°C
15°C
15°C
16°C
16°C
16°C
13°C
13°C
13°C
13°C
13°C
13°C
14°C
14°C
Day Statistics
Maximum Wind
25 km/h
Humidity
76%
Precipitation
14 mm
UV Index
1
Visibility
9 km
Rain Chance
86%
Snow Chance
0%
Sun & Moon
Sunrise
06:43 AM
Sunset
06:42 PM
Moonrise
06:30 PM
Moonset
06:41 AM
Moon Phase
Full Moon
Moon Illumination
99%
Air Quality
PM2.5
3.3
μg/m³
PM10
4.4
μg/m³
NO₂
2.8
μg/m³
O₃
76.7
μg/m³
SO₂
0.7
μg/m³
CO
143.4
μg/m³
Patchy rain nearby
Sunday, September 27, 2026
High
15°C
Low
13°C
Rain Chance
90%
Hourly Forecast
15°C
15°C
13°C
13°C
13°C
13°C
13°C
13°C
13°C
13°C
13°C
13°C
13°C
13°C
14°C
14°C
14°C
14°C
14°C
14°C
14°C
14°C
13°C
14°C
Day Statistics
Maximum Wind
30 km/h
Humidity
87%
Precipitation
9 mm
UV Index
0
Visibility
8 km
Rain Chance
90%
Snow Chance
0%
Sun & Moon
Sunrise
06:44 AM
Sunset
06:41 PM
Moonrise
06:52 PM
Moonset
07:45 AM
Moon Phase
Waning Gibbous
Moon Illumination
96%
Air Quality
PM2.5
1.6
μg/m³
PM10
1.9
μg/m³
NO₂
4.4
μg/m³
O₃
65
μg/m³
SO₂
0.4
μg/m³
CO
127.5
μg/m³
Overcast
Monday, September 28, 2026
High
21°C
Low
13°C
Rain Chance
41%
Hourly Forecast
13°C
14°C
14°C
14°C
14°C
14°C
13°C
13°C
14°C
13°C
14°C
17°C
16°C
16°C
20°C
20°C
20°C
21°C
20°C
18°C
17°C
17°C
16°C
16°C
Day Statistics
Maximum Wind
31 km/h
Humidity
76%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
41%
Snow Chance
0%
Sun & Moon
Sunrise
06:45 AM
Sunset
06:39 PM
Moonrise
07:16 PM
Moonset
08:51 AM
Moon Phase
Waning Gibbous
Moon Illumination
91%
Air Quality
PM2.5
4.1
μg/m³
PM10
5
μg/m³
NO₂
9.2
μg/m³
O₃
44.3
μg/m³
SO₂
1
μg/m³
CO
180.6
μg/m³
Sunny
Tuesday, September 29, 2026
High
23°C
Low
14°C
Rain Chance
5%
Hourly Forecast
15°C
15°C
15°C
15°C
14°C
14°C
14°C
14°C
15°C
16°C
18°C
20°C
21°C
22°C
23°C
23°C
22°C
22°C
21°C
20°C
19°C
19°C
19°C
18°C
Day Statistics
Maximum Wind
17 km/h
Humidity
70%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
5%
Snow Chance
0%
Sun & Moon
Sunrise
06:46 AM
Sunset
06:37 PM
Moonrise
07:46 PM
Moonset
10:00 AM
Moon Phase
Waning Gibbous
Moon Illumination
84%
Sunny
Wednesday, September 30, 2026
High
23°C
Low
17°C
Rain Chance
7%
Hourly Forecast
18°C
18°C
18°C
17°C
17°C
17°C
17°C
17°C
17°C
19°C
20°C
21°C
22°C
22°C
23°C
23°C
23°C
22°C
21°C
20°C
19°C
19°C
19°C
19°C
Day Statistics
Maximum Wind
18 km/h
Humidity
73%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
7%
Snow Chance
0%
Sun & Moon
Sunrise
06:47 AM
Sunset
06:35 PM
Moonrise
08:22 PM
Moonset
11:10 AM
Moon Phase
Waning Gibbous
Moon Illumination
75%
Solar Radiation Data
Shortwave Radiation
0.43
Diffuse Radiation
0.2
DNI
0
GTI
0
Weather Alerts
Small Craft Advisory issued September 23 at 4:07PM EDT until September 25 at 6:00AM EDT by NWS Upton NY
* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 feet. * WHERE...Long Island Sound west of Port Jefferson and New Haven, and New York Harbor. * WHEN...Until 6 AM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft.
Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Small Craft Advisory issued September 24 at 2:39AM EDT until September 25 at 6:00PM EDT by NWS Upton NY
* WHAT...Northeast winds 20 to 30 kt with occasional gusts up to 35 kt and seas 3 to 5 feet. * WHERE...Long Island Sound west of Port Jefferson and New Haven, and New York Harbor. * WHEN...Until 6 PM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft.
Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
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