McMechen, West Virginia Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
McMechen weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Rain35%0.06″97°71°—
- SundayJul 5Light Drizzle46%0.03″90°71°-7°
- MondayJul 6Thunderstorm81%0.04″81°70°-9°
- TuesdayJul 7Thunderstorm31%—80°66°-1°
- WednesdayJul 8Light Drizzle—0.01″85°64°+5°
- ThursdayJul 9Light Drizzle38%0.04″88°63°+3°
- FridayJul 10Thunderstorm68%0.07″75°69°-13°
AQI 49 (Good), driven by Ozone. Ozone at AQI 90 now. With UV 8.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 98 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 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 90 now. With UV 8.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 98 around 1 PM.
- Present
- AQI 90
- UV peak
- 8.2 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 98
PM × Wind × Precip
PM2.5 at 5.4 µg/m³, PM10 at 5.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- 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
- 11:17 PM
- Moonset
- 10:27 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
McMechen at a glance
- Today vs. normal: 24°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.
ZIP code: 26040
16-Day Forecast — McMechen
- Sat97°71°35%
- Sun90°71°46%
- Mon81°70°81%
- Tue80°66°31%
- Wed85°64°7%
- Thu88°63°38%
- Fri75°69°68%
- Sat84°64°52%
- Sun79°59°25%
- Mon78°55°19%
- Tue80°55°19%
- Wed85°56°28%
- Thu88°60°35%
- Fri77°63°36%
- Sat87°69°39%
- Sun81°68°36%
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 — McMechen
SPC has placed McMechen in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal Risk
- 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 McMechen
- 26040