Fog in Jacksonville, AR

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. August typically brings about 2 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Little Rock Air Force Base (KLRF). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
KLRFLittle Rock Air Force Base56 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 Jacksonville fogs in

Fog here concentrates in December and January — about 56 hours in a typical year at KLRF, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KLRF station page.

Fog season

January: ~11 hJanFebruary: ~9 hFebMarch: ~3 hMarApril: ~2 hAprMay: ~2 hMayJune: ~1 hJunJuly: ~1 hJulAugust: ~2 hAugSeptember: ~2 hSepOctober: ~2 hOctNovember: ~7 hNovDecember: ~14 hDec
Fog season runs November through February, peaking in December; fog is mostly a 5 AM–8 AM phenomenon; typically thinning out by 10 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.