Olean, New York Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Olean weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast18%—88°67°—
- SundayJul 5Showers36%0.38″83°65°-5°
- MondayJul 6Light Showers82%0.15″69°64°-14°
- TuesdayJul 7T-storm w/ Hail51%0.02″75°65°+6°
- WednesdayJul 8Drizzle12%0.01″76°62°+1°
- ThursdayJul 9Light Showers26%0.22″78°59°+2°
- FridayJul 10Thunderstorm62%0.05″83°65°+5°
AQI 48 (Good), driven by PM2.5. AQI up 6 over the last 6 hours (gradual rise). PM2.5 at 9.3 µg/m³, PM10 at 9.9 µg/m³ — typical background levels with no transport signature.
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 49 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 49
- UV peak
- 3.6 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 49
PM × Wind × Precip
PM2.5 at 9.3 µg/m³, PM10 at 9.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- 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
- 11:10 PM
- Moonset
- 10:15 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Olean at a glance
- Today vs. normal: 18°F above the seasonal normal for this latitude
- Last frost: April 28 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 14760
16-Day Forecast — Olean
- Sat88°67°18%
- Sun83°65°36%
- Mon69°64°82%
- Tue75°65°51%
- Wed76°62°12%
- Thu78°59°26%
- Fri83°65°62%
- Sat78°60°25%
- Sun71°51°19%
- Mon75°51°30%
- Tue74°51°20%
- Wed79°50°42%
- Thu80°59°39%
- Fri86°57°32%
- Sat83°63°52%
- Sun68°63°45%
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 — Olean
SPC has placed Olean in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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.
ZIP codes in Olean
- 14760