Cold Front Has Moved Across South Dakota
A cold front is bringing variable temperatures and fog to the state today.
Updated on Oct. 12, 2026 in Current Conditions
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A cold front has moved across South Dakota, bringing light rainfall to northern regions and varying temperatures across the state. A Dense Fog Advisory remains in effect for northeastern parts of the state until 1 pm today.
Why it matters
The stalled front creates a sharp temperature divide between the northern and southern parts of the state, while fog and rainfall impact travel safety. Meteorological systems originating from the Raton Basin often dictate the region's upcoming precipitation trends.
Morning low temperatures have been reported in the 40s and low 50s. High temperatures vary significantly, reaching the 50s in the north and west while hitting 70s and low 80s in the southeast.
The details
The current weather pattern is influenced by a cold front stalled across the southeastern region of the state. Forecasters anticipate a new weather system will develop near the Raton Basin in Colorado and New Mexico, leading to widespread rain mid-week.
Timeline
October 12, 2026: Dense Fog Advisory remains in effect until 1 pm.
Mid-week 2026: Daytime highs are projected to reach the 50s.
October 14-15, 2026: Widespread rainfall is expected to occur across the region.
Upcoming weekend: Dry conditions are anticipated to return.
Seasonal Patterns
The current advisory in northeastern South Dakota follows standard protocols established by the National Weather Service's Dense Fog Advisory criteria. This weather shift is consistent with typical autumnal transitions where stalled fronts often precede broader precipitation events.
Drivers in northeastern South Dakota should exercise extreme caution due to reduced visibility until the fog advisory expires at 1 pm. Residents should prepare for wetter conditions by clearing gutters or checking drainage before the widespread rainfall forecasted for Wednesday and Thursday.
The takeaway
The sharp temperature contrast across the state highlights the transition between lingering summer heat and approaching cooler autumn air. Residents should monitor local forecasts as the transition to wetter mid-week weather may impact outdoor activities and travel plans.
Further reading
For more updates on regional atmospheric trends, visit South Dakota Current Conditions.
Source note: This article includes information reported by Dakotanewsnow.
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