Williamson, West Virginia Weather
Heat settles and the rain begins. Day 89 of spring. Read this microseason across nine climate regions →
Williamson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Foggy——78°60°—
- TuesdayJun 16Overcast——84°57°+6°
- WednesdayJun 17Overcast13%—91°65°+7°
- ThursdayJun 18T-storm w/ Hail78%—92°70°+1°
- FridayJun 19Showers78%0.61″80°64°-12°
- SaturdayJun 20Overcast——80°55°0°
- SundayJun 21Light Drizzle23%—91°56°+11°
AQI 43 (Good), driven by Ozone. AQI up 8 over the last 6 hours (gradual rise). Ozone at AQI 41 now. With UV 0.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 7 around 1 PM.
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 41 now. With UV 0.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 7 around 1 PM.
- Present
- AQI 41
- UV peak
- 0.1 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 6.2 µg/m³ (AQI 34) with a 0.94 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.94
- 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).
Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 7:20 AM
- Moonset
- 10:06 PM
- In sign
- ♋︎ Cancer
Heat settles and the rain begins
Williamson at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: April 2 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Williamson
- Mon78°60°7%
- Tue84°56°5%
- Wed91°65°13%
- Thu92°70°78%
- Fri80°64°78%
- Sat80°55°4%
- Sun91°56°23%
- Mon80°65°58%
- Tue81°52°51%
- Wed87°59°25%
- Thu92°62°23%
- Fri94°67°45%
- Sat87°70°38%
- Sun93°69°39%
- Mon96°68°29%
- Tue84°67°38%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 16, 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 — Williamson
SPC has placed Williamson in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3MRGLMarginal Risk
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 Williamson
- 25661