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Current weather in Cornwall-on-Hudson is overcast clouds.

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Now · 12:21 AM

Cornwall-on-Hudson Weather & Hourly Forecast

United States · New York · 12520

63°F

Overcast night

Feels like: 65°F

💧 Humidity 86% 🌡 Pressure 30.24 inHg 💨 Wind 2 mph 👁 Visibility 18.3 mi ☁ Clouds 100% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Cornwall-on-Hudson

Today

1:00 AM

Overcast night

63° 💧 None 💨 2 mph H 87%30.24 inHg

4:00 AM

Partly cloudy night

62° 💧 None 💨 3 mph H 85%30.21 inHg

7:00 AM

Mostly sunny

61° 💧 None 💨 3 mph H 89%30.21 inHg

10:00 AM

Mostly cloudy

73° 💧 None 💨 6 mph H 71%30.18 inHg

1:00 PM

Overcast

78° 💧 0.000 in 💨 9 mph H 64%30.12 inHg

4:00 PM

Overcast

81° 💧 0.000 in 💨 8 mph H 56%30.03 inHg

7:00 PM

Partly cloudy

76° 💧 None 💨 7 mph H 64%29.97 inHg

10:00 PM

Partly cloudy night

75° 💧 None 💨 12 mph H 63%29.97 inHg

Tomorrow

1:00 AM

Mostly cloudy night

73° 💧 None 💨 12 mph H 69%29.91 inHg

4:00 AM

Mostly cloudy night

72° 💧 0.077 in 💨 10 mph H 73%29.85 inHg

7:00 AM

Light rain

67° 💧 0.014 in 💨 10 mph H 96%29.88 inHg

10:00 AM

Mostly cloudy

75° 💧 None 💨 9 mph H 82%29.88 inHg

1:00 PM

Mostly cloudy

81° 💧 None 💨 9 mph H 57%29.85 inHg

4:00 PM

Overcast

82° 💧 None 💨 8 mph H 52%29.80 inHg

7:00 PM

Overcast

74° 💧 None 💨 5 mph H 69%29.83 inHg

10:00 PM

Overcast night

71° 💧 None 💨 4 mph H 78%29.85 inHg

Today

1:00 AM

Overcast night

63° 💧 None 💨 2 mph H 87%30.24 inHg

2:00 AM

Partly cloudy night

62° 💧 None 💨 3 mph H 88%30.21 inHg

3:00 AM

Partly cloudy night

62° 💧 None 💨 3 mph H 85%30.21 inHg

4:00 AM

Partly cloudy night

62° 💧 None 💨 3 mph H 85%30.21 inHg

5:00 AM

Partly cloudy night

61° 💧 None 💨 2 mph H 85%30.24 inHg

6:00 AM

Mostly clear night

61° 💧 None 💨 3 mph H 87%30.21 inHg

7:00 AM

Mostly sunny

61° 💧 None 💨 3 mph H 89%30.21 inHg

8:00 AM

Mostly sunny

65° 💧 None 💨 4 mph H 82%30.21 inHg

9:00 AM

Mostly cloudy

70° 💧 None 💨 3 mph H 76%30.21 inHg

10:00 AM

Mostly cloudy

73° 💧 None 💨 6 mph H 71%30.18 inHg

11:00 AM

Partly cloudy

74° 💧 None 💨 7 mph H 72%30.18 inHg

12:00 PM

Mostly cloudy

77° 💧 None 💨 8 mph H 66%30.15 inHg

1:00 PM

Overcast

78° 💧 None 💨 9 mph H 64%30.12 inHg

2:00 PM

Mostly cloudy

77° 💧 None 💨 8 mph H 66%30.09 inHg

3:00 PM

Mostly cloudy

79° 💧 0.000 in 💨 9 mph H 61%30.09 inHg

4:00 PM

Overcast

81° 💧 0.000 in 💨 8 mph H 56%30.03 inHg

5:00 PM

Overcast

79° 💧 None 💨 7 mph H 59%30.00 inHg

6:00 PM

Mostly sunny

79° 💧 None 💨 8 mph H 59%30.00 inHg

7:00 PM

Partly cloudy

76° 💧 None 💨 7 mph H 64%29.97 inHg

8:00 PM

Mostly cloudy night

76° 💧 None 💨 10 mph H 62%29.97 inHg

9:00 PM

Clear night

76° 💧 None 💨 12 mph H 61%29.97 inHg

10:00 PM

Partly cloudy night

75° 💧 None 💨 12 mph H 63%29.97 inHg

11:00 PM

Mostly cloudy night

74° 💧 None 💨 12 mph H 66%29.94 inHg

Tomorrow

12:00 AM

Clear night

73° 💧 None 💨 12 mph H 68%29.94 inHg

1:00 AM

Mostly cloudy night

73° 💧 None 💨 12 mph H 69%29.91 inHg

2:00 AM

Mostly cloudy night

72° 💧 None 💨 11 mph H 70%29.91 inHg

3:00 AM

Mostly cloudy night

72° 💧 None 💨 10 mph H 71%29.88 inHg

4:00 AM

Mostly cloudy night

72° 💧 0.000 in 💨 10 mph H 73%29.85 inHg

5:00 AM

Light rain

71° 💧 0.019 in 💨 10 mph H 78%29.85 inHg

6:00 AM

Light rain

68° 💧 0.058 in 💨 11 mph H 93%29.85 inHg

7:00 AM

Light rain

67° 💧 0.014 in 💨 10 mph H 96%29.88 inHg

8:00 AM

Mostly sunny

69° 💧 None 💨 10 mph H 95%29.88 inHg

9:00 AM

Partly cloudy

72° 💧 None 💨 9 mph H 91%29.88 inHg

10:00 AM

Mostly cloudy

75° 💧 None 💨 9 mph H 82%29.88 inHg

11:00 AM

Mostly cloudy

77° 💧 None 💨 9 mph H 69%29.88 inHg

12:00 PM

Mostly cloudy

79° 💧 None 💨 9 mph H 61%29.85 inHg

1:00 PM

Mostly cloudy

81° 💧 None 💨 9 mph H 57%29.85 inHg

2:00 PM

Mostly cloudy

82° 💧 None 💨 9 mph H 53%29.83 inHg

3:00 PM

Mostly cloudy

82° 💧 None 💨 9 mph H 51%29.83 inHg

4:00 PM

Overcast

82° 💧 None 💨 8 mph H 52%29.80 inHg

5:00 PM

Overcast

78° 💧 None 💨 7 mph H 60%29.80 inHg

6:00 PM

Overcast

76° 💧 None 💨 6 mph H 65%29.83 inHg

7:00 PM

Overcast

74° 💧 None 💨 5 mph H 69%29.83 inHg

8:00 PM

Overcast night

73° 💧 None 💨 5 mph H 72%29.83 inHg

9:00 PM

Overcast night

72° 💧 None 💨 5 mph H 74%29.85 inHg

10:00 PM

Overcast night

71° 💧 None 💨 4 mph H 78%29.85 inHg

11:00 PM

Overcast night

70° 💧 None 💨 4 mph H 81%29.85 inHg

Friday

12:00 AM

Overcast night

69° 💧 None 💨 5 mph H 83%29.88 inHg

1:00 AM

Partly cloudy night

68° 💧 None 💨 5 mph H 82%29.88 inHg

2:00 AM

Mostly clear night

66° 💧 None 💨 5 mph H 83%29.88 inHg

3:00 AM

Clear night

64° 💧 None 💨 5 mph H 85%29.91 inHg

4:00 AM

Mostly clear night

62° 💧 None 💨 4 mph H 85%29.91 inHg

5:00 AM

Clear night

61° 💧 None 💨 4 mph H 87%29.91 inHg

6:00 AM

Clear night

60° 💧 None 💨 5 mph H 88%29.94 inHg

7:00 AM

Sunny

59° 💧 None 💨 5 mph H 88%29.97 inHg

8:00 AM

Sunny

62° 💧 None 💨 5 mph H 80%29.97 inHg

5:00 PM

Mostly sunny

75° 💧 None 💨 2 mph H 48%29.94 inHg

8:00 PM

Clear night

67° 💧 None 💨 1 mph H 76%29.97 inHg

11:00 PM

Clear night

63° 💧 None 💨 3 mph H 87%30.03 inHg

Saturday

2:00 AM

Clear night

60° 💧 None 💨 1 mph H 92%30.06 inHg

5:00 AM

Overcast night

57° 💧 None 💨 2 mph H 99%30.06 inHg

8:00 AM

Mostly cloudy

58° 💧 None 💨 1 mph H 93%30.12 inHg

11:00 AM

Partly cloudy

71° 💧 None 💨 2 mph H 65%30.09 inHg

2:00 PM

Overcast

77° 💧 None 💨 7 mph H 48%30.06 inHg

5:00 PM

Overcast

77° 💧 None 💨 8 mph H 53%30.03 inHg

8:00 PM

Mostly clear night

68° 💧 None 💨 9 mph H 75%30.03 inHg

11:00 PM

Mostly clear night

66° 💧 None 💨 5 mph H 85%30.06 inHg

Sunday

2:00 AM

Overcast night

66° 💧 None 💨 4 mph H 88%30.00 inHg

5:00 AM

Overcast night

68° 💧 None 💨 4 mph H 93%29.97 inHg

8:00 AM

Overcast

69° 💧 None 💨 3 mph H 93%30.00 inHg

11:00 AM

Overcast

76° 💧 None 💨 6 mph H 77%30.00 inHg

2:00 PM

Partly cloudy

83° 💧 None 💨 6 mph H 60%29.94 inHg

5:00 PM

Mostly sunny

84° 💧 None 💨 6 mph H 56%29.91 inHg

8:00 PM

Mostly clear night

76° 💧 None 💨 4 mph H 74%29.94 inHg

11:00 PM

Partly cloudy night

72° 💧 None 💨 3 mph H 83%30.00 inHg

Monday

2:00 AM

Mostly clear night

67° 💧 None 💨 2 mph H 95%30.06 inHg

5:00 AM

Mostly cloudy night

63° 💧 None 💨 2 mph H 99%30.06 inHg

8:00 AM

Partly cloudy

63° 💧 None 💨 1 mph H 93%30.12 inHg

11:00 AM

Mostly cloudy

74° 💧 None 💨 2 mph H 56%30.15 inHg

2:00 PM

Partly cloudy

80° 💧 None 💨 2 mph H 43%30.12 inHg

8:00 PM

Partly cloudy night

81° 💧 None 💨 1 mph H 36%30.12 inHg

Tuesday

2:00 AM

Overcast night

73° 💧 None 💨 7 mph H 63%30.09 inHg

8:00 AM

Mostly cloudy

67° 💧 None 💨 4 mph H 77%30.12 inHg

2:00 PM

Partly cloudy

69° 💧 None 💨 5 mph H 88%30.15 inHg

8:00 PM

Mostly cloudy night

82° 💧 None 💨 10 mph H 65%30.06 inHg

Wednesday

2:00 AM

Clear night

76° 💧 None 💨 10 mph H 88%30.03 inHg

8:00 AM

Mostly cloudy

75° 💧 None 💨 8 mph H 90%30.00 inHg

2:00 PM

Mostly sunny

77° 💧 None 💨 7 mph H 86%30.03 inHg

8:00 PM

Partly cloudy night

83° 💧 None 💨 10 mph H 47%30.03 inHg

Thursday

2:00 AM

Clear night

71° 💧 None 💨 9 mph H 57%30.12 inHg

8:00 AM

Mostly sunny

61° 💧 None 💨 4 mph H 79%30.21 inHg

2:00 PM

Sunny

59° 💧 None 💨 8 mph H 69%30.27 inHg

8:00 PM

Clear night

71° 💧 None 💨 4 mph H 42%30.21 inHg

Friday

2:00 AM

Clear night

66° 💧 None 💨 4 mph H 58%30.18 inHg

8:00 AM

Sunny

59° 💧 None 💨 0 mph H 87%30.18 inHg

2:00 PM

Overcast

58° 💧 None 💨 3 mph H 96%30.15 inHg

8:00 PM

Overcast night

76° 💧 None 💨 3 mph H 44%30.06 inHg

Saturday

2:00 AM

Overcast night

67° 💧 None 💨 4 mph H 72%30.03 inHg

8:00 AM

Overcast

65° 💧 None 💨 3 mph H 83%30.06 inHg

2:00 PM

Mostly sunny

60° 💧 None 💨 7 mph H 83%30.15 inHg

8:00 PM

Partly cloudy night

75° 💧 None 💨 5 mph H 45%30.12 inHg

Sunday

2:00 AM

Mostly cloudy night

67° 💧 None 💨 5 mph H 57%30.18 inHg

8:00 AM

Overcast

62° 💧 None 💨 7 mph H 84%30.24 inHg

2:00 PM

Overcast

60° 💧 None 💨 4 mph H 76%30.27 inHg

8:00 PM

Overcast night

74° 💧 None 💨 11 mph H 56%30.18 inHg

Monday

2:00 AM

Overcast night

70° 💧 None 💨 7 mph H 79%30.12 inHg

8:00 AM

Mostly sunny

68° 💧 None 💨 6 mph H 95%30.06 inHg

2:00 PM

Mostly cloudy

72° 💧 None 💨 6 mph H 91%30.06 inHg

8:00 PM

Partly cloudy night

80° 💧 None 💨 6 mph H 48%30.06 inHg

Tuesday

2:00 AM

Overcast night

68° 💧 None 💨 9 mph H 51%30.12 inHg

8:00 AM

Sunny

61° 💧 None 💨 8 mph H 64%30.24 inHg

2:00 PM

Mostly sunny

57° 💧 None 💨 7 mph H 76%30.33 inHg

8:00 PM

Clear night

70° 💧 None 💨 5 mph H 40%30.30 inHg

Wednesday

2:00 AM

Clear night

64° 💧 None 💨 5 mph H 51%30.27 inHg

8:00 AM

Sunny

56° 💧 None 💨 2 mph H 80%30.30 inHg

2:00 PM

Mostly sunny

55° 💧 None 💨 2 mph H 84%30.30 inHg

In Cornwall-on-Hudson and, more broadly, across the state of New York: This evening will be characterized by mostly cloudy skies with mild temperatures ranging from 65 to 71 degrees Fahrenheit. Winds will be light, coming from the east at up to 2 mph, with occasional gusts reaching the same speed. No precipitation is expected during the evening hours, making for a generally dry night. Temperatures are expected to remain steady through the next few hours, providing a comfortable and calm night. Overall, residents can anticipate a quiet evening with minimal wind and no rain.

15-Day Weather Outlook for Cornwall-on-Hudson

TomorrowTomorrow

Mostly cloudy 82°/67° 💧 None 💨 12 mph

Friday, Sep 11Fri Sep 11

Overcast 75°/59° 💧 0.184 in 💨 5 mph

Saturday, Sep 12Sat Sep 12

Overcast 77°/57° 💧 None 💨 8 mph

Sunday, Sep 13Sun Sep 13

Partly cloudy 84°/66° 💧 0.006 in 💨 9 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 80°/63° 💧 None 💨 4 mph

Tuesday, Sep 15Tue Sep 15

Partly cloudy 81°/67° 💧 0.013 in 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Mostly cloudy 82°/75° 💧 0.002 in 💨 10 mph

Thursday, Sep 17Thu Sep 17

Partly cloudy 83°/59° 💧 0.021 in 💨 10 mph

Friday, Sep 18Fri Sep 18

Overcast 71°/58° 💧 None 💨 4 mph

Saturday, Sep 19Sat Sep 19

Overcast 76°/60° 💧 0.004 in 💨 7 mph

Sunday, Sep 20Sun Sep 20

Partly cloudy 75°/60° 💧 None 💨 7 mph

Monday, Sep 21Mon Sep 21

Mostly cloudy 74°/68° 💧 0.001 in 💨 11 mph

Tuesday, Sep 22Tue Sep 22

Partly cloudy 80°/57° 💧 0.006 in 💨 9 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 70°/55° 💧 None 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Cornwall-on-Hudson

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Cornwall-on-Hudson

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 1:00 AM

PM2.5 Fine particles Fair 10,1µg/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 13,7µg/m³

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

O₃ Ozone Good 21,9µg/m³

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

NO₂ Nitrogen dioxide Good 32,6µg/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 Cornwall-on-Hudson

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 6,6High 🙂Fair

Tomorrow UV 6,8High 🙂Fair

Friday UV 6,4High 😐Moderate

Saturday UV 6,5High 😷Poor

Sunday UV 4,0Moderate —Unavailable

Monday UV 6,0High —Unavailable

Tuesday UV 8,0Very high —Unavailable

Hourly UV index today

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

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 Cornwall-on-Hudson

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · CORNWALL-ON-HUDSON, NEW YORK

Tonight's Stargazing & Shooting Stars

Good observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

70/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 8:53 PM–4:55 AM

☁ Cloud cover 41% Real hourly forecast for the best viewing hour.

☾ Moonlight 7% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 68° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min66%

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.

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Forecast data for Cornwall-on-Hudson were last refreshed today at 12:21 AM. The current forecast period extends through 10/09/2026 at 10:00 PM. 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.