A warm and sticky pattern shaping up across South Dakota
The shift toward a more summery atmosphere is arriving in KELOLAND, and it’s bringing with it not just higher temperatures, but also an increase in moisture that will elevate the humidity levels as we edge closer to June.
After a cooler stretch in the second half of May, the pattern is finally pivoting back to warmer air—a development many across Sioux Falls and the surrounding area may welcome after recent chillier days. While the month started off with above-average warmth, its latter half cooled down noticeably. That trend, however, is coming to an end.
Airmasses from the south will begin to flow northward, carrying with them deeper layers of moisture. This change, expected to kick in by early next week, is not just a sign of seasonal transition, but also a crucial factor in the development of early summer thunderstorms—especially vital for areas that are still behind on rainfall totals.
Dew points, a key indicator of how muggy the air feels, are forecast to climb above 60°F (16°C). Once dew points reach that level, the humidity becomes noticeable, and that classic summer stickiness will be felt across much of the region.
As June approaches, so does the potential for more dramatic shifts in weather, typical of the early summer climate in South Dakota. For those craving heat and that unmistakable humid air, it won’t be long now. The forecast is starting to feel a whole lot more like summer.
