Fog in Fort Campbell, KY

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. dense fog (visibility under a mile) is rare here in August.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Campbell Army Airfield (Fort Campbell) (KHOP). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
KHOPCampbell Army Airfield (Fort Campbell)20 h/yrverifying

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 Fort Campbell fogs in

Fog here concentrates in November and December — about 20 hours in a typical year at KHOP, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KHOP station page.

Fog season

January: ~1 hJanFebruary: ~2 hFebMarch: ~1 hMarApril: ~2 hAprMay: ~1 hMayJune: ~1 hJunJuly: ~2 hJulAugust: ~0 hAugSeptember: ~1 hSepOctober: ~1 hOctNovember: ~5 hNovDecember: ~2 hDec
Fog season is February, April, July, November, December, peaking in November; fog is mostly a 2 AM–7 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 1 hour once it forms local time · 10-yr average

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