Sioux Falls
South Dakota

Temperature

Temperature · °C at every place the city samples, upstream to downstream. The Big Sioux sites share one chart because they share one water; Skunk Creek gets its own, because the state assigns it different uses and different numbers.

The Big Sioux, last twelve months

-10010203040NovMarJul32.2
  • I-90
  • Falls Park
  • Bahnson
  • Timberline

177 samples · -0.1 to 27.7 °C

Warmwater fish life — below 90 °F (32.2 °C) · ARSD 74:51:01:48

The Big Sioux, 2012 to 2026

-10010203040201320152017201920212023202532.2
  • I-90
  • Falls Park
  • Bahnson
  • Timberline

3,259 samples · -1 to 31.9 °C

Warmwater fish life — below 90 °F (32.2 °C) · ARSD 74:51:01:48

Skunk Creek at Marion Road

-10010203040201320152017201920212023202532.2

858 samples · -0.1 to 30.92 °C

Warmwater fish life — below 90 °F (32.2 °C) · ARSD 74:51:01:49

From the city's SWQ Samples table, as of October 12, 2026. Dashed lines are published thresholds with the rule cited, drawn for the season the rule names. No sample here is scored against them.