Delevan, New York Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Delevan weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——78°50°—
- FridayJun 5Overcast——81°57°+3°
- SaturdayJun 6Heavy Drizzle67%0.04″69°63°-12°
- SundayJun 7Light Drizzle34%0.01″66°54°-3°
- MondayJun 8Clear——71°47°+5°
- TuesdayJun 9Overcast——78°52°+7°
- WednesdayJun 10Overcast20%—81°58°+3°
Ozone at AQI 51 now. AQI up 9 over the last 6 hours (gradual rise). With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 53 by mid-afternoon.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 51 now. With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 53 by mid-afternoon.
- Present
- AQI 51
- UV peak
- 7.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 53
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 3:50 AM
- Moonset
- 1:06 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Delevan at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: May 1 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 — Delevan
SPC has placed Delevan in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3MRGLMarginal Risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
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.