Weather@Cornwall NY

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Welcome to Weather@Cornwall NY

The Greater Cornwall communities' official source for real-time localized weather conditions, radar, live feeds, forecasts, alerts and events. Learn more about the Cornwall Office of Emergency Management Environmental Intelligence Programs and Stay Informed!

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Greater Cornwall WX Alerts

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Current watches, warnings, and advisories for Orange (NYZ067) NY
Last Update: Wed Aug 26 2026 20:48:51 EDT
THERE IS 1 ACTIVE ALERT!

wx.cornwallny.gov
On FB @cornwalloem

warning FLOOD WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING
Flood Watch issued August 26 at 2:27PM EDT until August 27 at 11:00PM EDT by NWS Upton NY (Region Impacted: Northern Fairfield; Southern Fairfield; Western Passaic; Eastern Passaic; Hudson; Western Bergen; Eastern Bergen; Western Essex; Eastern Essex; Western Union; Eastern Union; Orange; Putnam; Rockland; Northern Westchester; Southern Westchester; New York (Manhattan); Bronx; Richmond (Staten Is.); Kings (Brooklyn); Northern Queens; Northern Nassau; Southern Queens; Southern Nassau)
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of southern Connecticut, including the following areas, Northern Fairfield and Southern Fairfield, northeast New Jersey, including the following areas, Eastern Bergen, Eastern Essex, Eastern Passaic, Eastern Union, Hudson, Western Bergen, Western Essex, Western Passaic and Western Union, and southeast New York, including the following areas, Bronx, Kings (Brooklyn), New York (Manhattan), Northern Nassau, Northern Queens, Northern Westchester, Orange, Putnam, Richmond (Staten Island), Rockland, Southern Nassau, Southern Queens and Southern Westchester. * WHEN...From Thursday afternoon through Thursday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Total rainfall amounts are around 1 to 1.5 inches in the watch area, but some areas could receive up to 3 inches with peak rainfall rates between 1.5 to 2.5 in/hr. - http://www.weather.gov/safety/flood

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Latest Radar Loop : NWS OKX - New York City, NY

Latest Radar Loop NWS Office OKX - New York City, NY

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Radar Map for the Greater Cornwall Area

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Greater Cornwall Air Quality Awareness

Current Air Quality - Cornwall, NY

Greater Cornwall Rainfall and Flood Awareness

Rainfall and Flood Awareness for the Greater Cornwall Area

Flood Awareness: reviewing official NWS alert information

Greater Cornwall Live Weather Feeds

Camera imagery courtesy of NYS Mesonet • Site: Otisville Last refreshed: —

Greater Cornwall Weather Conditions and Forecasts

Current Conditions for Greater Cornwall

Current Conditions - Cornwall-on-Hudson

Tonight

Mostly cloudy, with a low around 65. South wind around 5 mph.
Mostly Cloudy
65 °F : 5 mph S
Elevation: 696.03ft

Current Conditions - Cornwall / Firthcliffe

Tonight

Mostly cloudy, with a low around 64. South wind around 5 mph.
Mostly Cloudy
64 °F : 5 mph S
Elevation: 1096.05ft

Current Conditions - Mountainville

Tonight

Mostly cloudy, with a low around 63. South wind around 3 mph.
Mostly Cloudy
63 °F : 3 mph S
Elevation: 1001.05ft

12 Hour Zone Forecast Orange County (NYZ067)

Tonight
Mostly cloudy, with a low around 64. South wind around 5 mph.
Mostly Cloudy
64 °F : 5 mph S
Thursday
A chance of showers and thunderstorms between 8am and 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and thunderstorms. Partly sunny. High near 78, with temperatures falling to around 74 in the afternoon. South wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Chance Showers And Thunderstorms
78 °F : 5 to 8 mph S

Weather Data Sources

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Official Weather & Environmental Intelligence

Weather@Cornwall NY compiles official weather, environmental, and public safety information for the Greater Cornwall community.


Supporting data sources

These sources support local awareness, preparedness, response, public information, and environmental monitoring.

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National Weather Service

Official watches, warnings, advisories, forecasts, and weather alerts for Orange County and the Greater Cornwall area.

radar

NOAA / NWS Radar

Regional radar products supporting awareness of precipitation, storms, and changing weather conditions.

air

AirNow / EPA

Official air quality information and public health guidance supporting local air quality awareness.

videocam

NYS Mesonet

Regional weather camera and environmental monitoring resources supporting local situational awareness.

shield

Cornwall OEM

Local public safety coordination, readiness information, and community emergency management awareness.

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Weather@Cornwall NY

Local compilation and communication of weather and environmental information for the Greater Cornwall community.