Chester, New York Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Chester weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain59%0.78″94°70°—
- SundayJul 5Heavy Rain49%1.0″86°71°-8°
- MondayJul 6Showers90%1.2″71°65°-15°
- TuesdayJul 7Drizzle77%0.06″65°60°-6°
- WednesdayJul 8Overcast23%—78°59°+13°
- ThursdayJul 9Light Drizzle14%—88°63°+10°
- FridayJul 10Thunderstorm56%0.04″81°65°-7°
AQI 47 (Good), driven by Ozone. AQI up 13 over the last 6 hours (gradual rise). Ozone at AQI 63 now. With UV 8.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 71 around 1 PM.
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 63 now. With UV 8.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 71 around 1 PM.
- Present
- AQI 63
- UV peak
- 8.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 71
PM × Wind × Precip
PM2.5 at 5.7 µg/m³, PM10 at 6.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.88
- Wind
- breezy
- 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
- 10:53 PM
- Moonset
- 9:59 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Chester at a glance
- Today vs. normal: 23°F above the seasonal normal for this latitude
- Last frost: April 24 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 10918
16-Day Forecast — Chester
- Sat94°70°59%
- Sun86°71°49%
- Mon71°65°90%
- Tue65°60°77%
- Wed78°59°23%
- Thu88°63°14%
- Fri81°65°56%
- Sat83°68°26%
- Sun79°62°27%
- Mon75°59°23%
- Tue79°62°28%
- Wed85°56°32%
- Thu86°60°29%
- Fri89°63°30%
- Sat88°66°21%
- Sun84°69°24%
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 — Chester
SPC has placed Chester 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 Chester
- 10918