Brilliant, Ohio Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Brilliant weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain28%0.28″95°74°—
- SundayJul 5Rain70%0.38″84°66°-11°
- MondayJul 6Light Showers76%—88°65°+4°
- TuesdayJul 7Showers49%—88°66°0°
- WednesdayJul 8Overcast27%—87°60°-1°
- ThursdayJul 9Light Drizzle42%—82°68°-5°
- FridayJul 10Overcast47%—86°64°+4°
AQI 64 (Moderate), driven by PM2.5. AQI down 20 over the last 6 hours — air quality is improving sharply. PM2.5 at 9.7 µg/m³ (AQI 52) with a 0.95 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
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 40. Overcast through the UV peak window (cloud cover ~97%) — afternoon ozone should stay flat.
- Present
- AQI 40
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 9
PM × Wind × Precip
PM2.5 at 9.7 µg/m³ (AQI 52) with a 0.95 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.95
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:17 PM
- Moonset
- 10:26 AM
- In sign
- ♒︎ Aquarius
Cicadas claim the afternoon
Brilliant at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 43913
15-Day Forecast — Brilliant
- Sat95°74°28%
- Sun84°66°70%
- Mon88°65°76%
- Tue88°66°49%
- Wed87°60°27%
- Thu82°68°42%
- Fri86°64°47%
- Sat79°66°37%
- Sun85°65°29%
- Mon81°59°17%
- Tue82°60°32%
- Wed76°58°29%
- Thu85°57°39%
- Fri76°67°36%
- Sat71°62°27%
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 — Brilliant
SPC has placed Brilliant in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight Risk
- DAY 3MRGLMarginal 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.
ZIP codes in Brilliant
- 43913