Fog in Michigan City, IN

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. August typically brings about 8 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Michigan City Municipal Airport (KMGC). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
KMGCMichigan City Municipal Airport42 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 Michigan City fogs in

Fog here concentrates in August and September — about 42 hours in a typical year at KMGC, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KMGC station page.

Fog season

January: ~4 hJanFebruary: ~3 hFebMarch: ~2 hMarApril: ~2 hAprMay: ~2 hMayJune: ~4 hJunJuly: ~4 hJulAugust: ~8 hAugSeptember: ~7 hSepOctober: ~2 hOctNovember: ~1 hNovDecember: ~2 hDec
Fog season runs December through October, peaking in August; fog is mostly a 11 PM–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.