Sylvania, Ohio Weather
Fireflies rise from the lawn. Day 78 of spring. Read this microseason across nine climate regions →
Sylvania weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Heavy Drizzle22%0.04″88°60°—
- SaturdayJun 6Heavy Drizzle57%0.04″80°70°-8°
- SundayJun 7Overcast——80°63°0°
- MondayJun 8Heavy Drizzle15%—77°62°-3°
- TuesdayJun 9Heavy Drizzle55%0.04″78°69°+1°
- WednesdayJun 10Overcast32%—82°68°+4°
- ThursdayJun 11Light Showers25%—84°68°+2°
AQI 87 (Moderate), driven by Ozone. AQI down 25 over the last 6 hours — air quality is improving sharply. Ozone at AQI 44 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 14 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 44 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 14 by mid-afternoon.
- Present
- AQI 44
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 14
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).










































The higher the clouds, the finer the weather.
- Moonrise
- 4:40 AM
- Moonset
- 2:36 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Sylvania at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: April 26 (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 5, 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 — Sylvania
SPC has placed Sylvania in the Slight Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3SLGTSlight Risk
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.