Fog in Mobridge, SD

daily fog outlook & 2016–2026 climatology
Fog unlikely through Sunday (peak 4%). August typically brings about 4 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Mobridge Municipal Airport (KMBG). Forecast percentages for this station have passed live verification.

Measuring station

stationairportfog hours/yrforecast
KMBGMobridge Municipal Airport45 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 Mobridge fogs in

Fog here concentrates in January and December — about 45 hours in a typical year at KMBG, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KMBG station page.

Fog season

January: ~8 hJanFebruary: ~4 hFebMarch: ~5 hMarApril: ~3 hAprMay: ~2 hMayJune: ~2 hJunJuly: ~1 hJulAugust: ~4 hAugSeptember: ~2 hSepOctober: ~2 hOctNovember: ~5 hNovDecember: ~7 hDec
Fog season runs August through June, peaking in January; fog is mostly a 5 AM–8 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.