St. Clairsville, Ohio Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
St. Clairsville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain31%0.18″95°69°—
- SundayJul 5Light Rain56%0.06″87°70°-8°
- MondayJul 6Thunderstorm70%0.02″80°66°-7°
- TuesdayJul 7Light Drizzle23%—82°63°+2°
- WednesdayJul 8Overcast14%—85°59°+3°
- ThursdayJul 9Overcast53%—86°67°+1°
- FridayJul 10T-storm w/ Hail53%—78°66°-8°
AQI 46 (Good), driven by Ozone. AQI down 6 over the last 6 hours (gradual decline). Ozone at AQI 70 now. With UV 6.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 40 around 1 PM.
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 70 now. With UV 6.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 40 around 1 PM.
- Present
- AQI 70
- UV peak
- 6.1 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 40
PM × Wind × Precip
PM2.5 at 5.6 µg/m³, PM10 at 5.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.97
- Wind
- light
- 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
- 11:18 PM
- Moonset
- 10:27 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
St. Clairsville at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — St. Clairsville
- Sat95°69°31%
- Sun87°70°56%
- Mon80°66°70%
- Tue82°63°23%
- Wed85°59°14%
- Thu86°67°53%
- Fri78°66°53%
- Sat86°65°41%
- Sun76°62°28%
- Mon73°56°13%
- Tue77°57°14%
- Wed85°63°29%
- Thu89°66°23%
- Fri89°68°29%
- Sat83°67°29%
- Sun85°66°26%
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 — St. Clairsville
SPC has placed St. Clairsville in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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 St. Clairsville
- 43950