Fog in Cincinnati, OH

daily fog outlook & 2016–2026 climatology
Some chance of fog — peaks at 20% around 8 am Monday.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Cincinnati Municipal Airport Lunken Field (KLUK). Forecast percentages for this station have passed live verification.

Measuring station

stationairportfog hours/yrforecast
KLUKCincinnati Municipal Airport Lunken Field133 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 Cincinnati fogs in

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

Fog season

January: ~7 hJanFebruary: ~7 hFebMarch: ~8 hMarApril: ~6 hAprMay: ~15 hMayJune: ~7 hJunJuly: ~8 hJulAugust: ~11 hAugSeptember: ~18 hSepOctober: ~20 hOctNovember: ~20 hNovDecember: ~8 hDec
Fog season is year-round, peaking in October; fog is mostly a 2 AM–8 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.