Fog in Lansing, MI

daily fog outlook & 2016–2026 climatology
Fog unlikely through Sunday (peak 9%). August typically brings about 3 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Capital Region International Airport (KLAN). Forecast percentages for this station have passed live verification.

Measuring station

stationairportfog hours/yrforecast
KLANCapital Region International Airport33 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 Lansing fogs in

Fog here concentrates in January and September — about 33 hours in a typical year at KLAN, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KLAN station page.

Fog season

January: ~6 hJanFebruary: ~4 hFebMarch: ~3 hMarApril: ~2 hAprMay: ~1 hMayJune: ~0 hJunJuly: ~1 hJulAugust: ~3 hAugSeptember: ~5 hSepOctober: ~3 hOctNovember: ~2 hNovDecember: ~3 hDec
Fog season runs August through April, peaking in January; fog is mostly a 3 AM–9 AM phenomenon; typically thinning out by 11 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.