Fog in Fayetteville/Springdale/Rogers, AR

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. August typically brings about 1 hour of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Northwest Arkansas National Airport (KXNA). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
KXNANorthwest Arkansas National Airport29 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 Fayetteville/Springdale/Rogers fogs in

Fog here concentrates in January and February — about 29 hours in a typical year at KXNA, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KXNA station page.

Fog season

January: ~5 hJanFebruary: ~3 hFebMarch: ~3 hMarApril: ~3 hAprMay: ~2 hMayJune: ~1 hJunJuly: ~1 hJulAugust: ~1 hAugSeptember: ~2 hSepOctober: ~3 hOctNovember: ~3 hNovDecember: ~3 hDec
Fog season runs September through May, peaking in January; 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.