Dakota Dunes Weather Forecast
- 5
- 38
Breezy
- -12
- 23
Mostly Cloudy
- -8
- 0
Cold
- -5
- 11
Mostly Cloudy
- -3
- 16
Partly Sunny
- 10
- 27
Partly Sunny
Today 21 Jan Union
Mostly sunny. A chance of snow in the Morning, then a chance of Flurries in the afternoon. Little or no snow accumulation. Windy with Highs in the mid 30s. Temperature falling into the mid 20s in the afternoon. West Winds 20 to 25 Mph with Gusts up to 45 Mph, increasing to northwest 30 to 35 Mph with Gusts up to 55 Mph in the afternoon. Chance of snow 50 percent.
Tonight 21 Jan Union
Mostly clear in the Evening, then becoming partly cloudy. Breezy, cold with Lows around 5 above. Northwest Winds 20 to 25 Mph with Gusts up to 40 Mph, becoming west 5 to 10 Mph with Gusts up to 20 Mph after midnight.
Dakota Dunes Temperature Statistics
January Temperature
Sioux City, Sioux Gateway Airport (7.5 miles)
Lowest 17 January, 2026
3 °FAverage January
28.8 °FHighest 7 January, 2026
63 °F
Climate (2021–Present)
Sioux City, Sioux Gateway Airport (7.5 miles)
Average Low 2021–2026
39 °FAverage 2021–2026
50.9 °FAverage High 2021–2026
62.8 °F