Cornwall, NY Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Cornwall, NY in one place.
Mostly clear, with a low around 75. West wind around 9 mph, with gusts as high as 22 mph.
Local Weather Overview
This forecast page for Cornwall, NY is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 14, 2026 8:12 PM EDT.
The active forecast window currently covers Jul 14 to Jul 21, 2026 for Cornwall, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 21, 2026
- Latest sync
- Jul 14, 2026 8:12 PM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Cornwall
Wednesday looks like the warmest upcoming period in Cornwall at 93 degrees F.
Friday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Wednesday at about 10 mph NW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 8:12 PM EDT
- Coverage
- 8 days
- Time zone
- America/New_York
- Forecast office
- OKX
- Radar station
- KOKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Areas of smoke after 9am. Sunny. High near 93, with temperatures falling to around 91 in the afternoon. Heat index values as high as 95. Northwest wind around 10 mph, with gusts as high as 24 mph.
Smoke. Mostly cloudy, with a low around 69. Northwest wind 5 to 9 mph, with gusts as high as 22 mph.
Patchy smoke before 9am. Mostly sunny, with a high near 87. West wind 3 to 9 mph, with gusts as high as 21 mph.
Mostly clear, with a low around 66. Northwest wind 5 to 9 mph.
Mostly sunny, with a high near 84.
A chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 64. Chance of precipitation is 40%.
Showers and thunderstorms likely. Partly sunny, with a high near 78. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 65. Chance of precipitation is 50%.
A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Jul 14
|
Mostly Clear
|
75°F |
9 mph
W
|
|
Wednesday
Jul 15
|
Areas Of Smoke
|
93°F |
10 mph
NW
|
|
Wednesday Night
Jul 15
|
Smoke
|
69°F |
5 to 9 mph
NW
|
|
Thursday
Jul 16
|
Patchy Smoke then Mostly Sunny
|
87°F |
3 to 9 mph
W
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
66°F |
5 to 9 mph
NW
|
|
Friday
Jul 17
|
Mostly Sunny
|
84°F |
6 mph
NW
|
|
Friday Night
Jul 17
|
Partly Cloudy then Chance Showers And Thunderstorms
|
64°F |
2 to 6 mph
N
|
|
Saturday
Jul 18
|
Showers And Thunderstorms Likely
|
78°F |
6 mph
SE
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms Likely
|
66°F |
6 mph
SW
|
|
Sunday
Jul 19
|
Chance Rain Showers
|
81°F |
7 mph
W
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
65°F |
6 mph
NW
|
|
Monday
Jul 20
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
83°F |
6 mph
W
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms
|
67°F |
6 mph
S
|
|
Tuesday
Jul 21
|
Chance Rain Showers
|
83°F |
8 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Cornwall.