Cornwall-on-Hudson, New York Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Cornwall-on-Hudson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain56%1.1″92°73°—
- SundayJul 5Light Rain45%0.20″85°71°-7°
- MondayJul 6Showers88%0.87″71°66°-14°
- TuesdayJul 7Heavy Drizzle76%0.07″66°60°-5°
- WednesdayJul 8Overcast25%—81°59°+15°
- ThursdayJul 9Overcast12%—90°65°+9°
- FridayJul 10Light Drizzle55%0.04″82°66°-8°
AQI 51 (Moderate), driven by Ozone. AQI up 17 in the last 6 hours — air quality is degrading. Ozone at AQI 55 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 55 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 55
- UV peak
- 4.0 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 55
PM × Wind × Precip
PM2.5 at 5.3 µg/m³, PM10 at 6.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.85
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:52 PM
- Moonset
- 9:58 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Cornwall-on-Hudson at a glance
- Today vs. normal: 22°F above the seasonal normal for this latitude
- Last frost: April 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Cornwall-on-Hudson
- Sat93°73°56%
- Sun85°71°45%
- Mon71°66°88%
- Tue66°60°76%
- Wed81°59°25%
- Thu90°65°12%
- Fri82°66°55%
- Sat84°68°28%
- Sun81°64°27%
- Mon75°62°22%
- Tue82°63°29%
- Wed87°57°33%
- Thu88°61°52%
- Fri93°64°48%
- Sat89°67°32%
- Sun86°70°46%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Cornwall-on-Hudson
SPC has placed Cornwall-on-Hudson in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Cornwall-on-Hudson
- 12520