Hillsboro, Ohio Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Hillsboro weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast15%—93°75°—
- SundayJul 5Light Showers40%0.07″88°73°-5°
- MondayJul 6Thunderstorm39%—81°68°-7°
- TuesdayJul 7Overcast19%—81°63°0°
- WednesdayJul 8Light Drizzle18%—86°65°+5°
- ThursdayJul 9Light Drizzle41%—86°66°0°
- FridayJul 10Light Drizzle53%—79°69°-7°
AQI 48 (Good), driven by PM2.5. AQI projected to climb to 68 over the next 6 hours. PM2.5 at 9.5 µg/m³ (AQI 52) with a 0.90 fine-to-coarse ratio and 4 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 during the projected peak around 8 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 39 now. With UV 4.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 21 around 1 PM.
- Present
- AQI 39
- UV peak
- 4.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 21
PM × Wind × Precip
PM2.5 at 9.5 µg/m³ (AQI 52) with a 0.90 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.90
- Wind
- calm
- 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
- 11:28 PM
- Moonset
- 10:40 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Hillsboro at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: April 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 45133
16-Day Forecast — Hillsboro
- Sat93°75°15%
- Sun88°73°40%
- Mon81°68°39%
- Tue81°63°19%
- Wed86°65°18%
- Thu86°66°41%
- Fri79°69°53%
- Sat84°65°30%
- Sun76°61°27%
- Mon67°57°14%
- Tue76°59°13%
- Wed82°63°22%
- Thu85°66°26%
- Fri87°69°19%
- Sat83°68°42%
- Sun87°70°29%
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 — Hillsboro
SPC has placed Hillsboro 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 Hillsboro
- 45133