Fog in Harrison, AR

daily fog outlook & 2016–2026 climatology
Fog unlikely through Monday (peak 3%). August typically brings about 6 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Boone County Airport (KHRO). Forecast percentages for this station have passed live verification.

Measuring station

stationairportfog hours/yrforecast
KHROBoone County Airport83 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 Harrison fogs in

Fog here concentrates in January and December — about 83 hours in a typical year at KHRO, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KHRO station page.

Fog season

January: ~13 hJanFebruary: ~8 hFebMarch: ~10 hMarApril: ~3 hAprMay: ~8 hMayJune: ~3 hJunJuly: ~3 hJulAugust: ~6 hAugSeptember: ~6 hSepOctober: ~4 hOctNovember: ~5 hNovDecember: ~13 hDec
Fog season is January, February, March, May, August, September, October, November, December, peaking in January; fog is mostly a 5 AM–8 AM phenomenon; typically thinning out by 11 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.