Fog in Parkersburg (Williamstown), WV

daily fog outlook & 2016–2026 climatology
Some chance of fog — peaks at 20% around 5 am Monday.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Mid Ohio Valley Regional Airport (KPKB). Forecast percentages for this station have passed live verification.

Measuring station

stationairportfog hours/yrforecast
KPKBMid Ohio Valley Regional Airport133 h/yrlive forecast

Fog is measured where instruments live — airports. Hours/yr = time below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), the aviation definition of seriously dense fog.

When Parkersburg (Williamstown) fogs in

Fog here concentrates in September and October — about 133 hours in a typical year at KPKB, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KPKB station page.

Fog season

January: ~3 hJanFebruary: ~4 hFebMarch: ~3 hMarApril: ~4 hAprMay: ~13 hMayJune: ~9 hJunJuly: ~16 hJulAugust: ~22 hAugSeptember: ~29 hSepOctober: ~22 hOctNovember: ~7 hNovDecember: ~3 hDec
Fog season runs May through October, peaking in September; fog is mostly a 3 AM–7 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 2 hours once it forms local time · 10-yr average

Machine access: data.json · llms.txt · forecast verification. Not for operational use.