McCook Lake Weather Forecast
- 51
- 78
Increasing Clouds
- 32
- 75
Rain/Snow
- 23
- 41
Snow Likely
- 34
- 52
Mostly Sunny
- 39
- 72
Mostly Sunny
- 28
- 58
Chance Rain/Snow
Today 13 Mar Union
Sunny, warmer with Highs in the upper 70s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.
Tonight 13 Mar Union
Partly cloudy. Not as cool with Lows in the lower 50s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph.
McCook Lake Temperature Statistics
March Temperature
Sioux City, Sioux Gateway Airport (11.2 miles)
Lowest 2 March, 2025
18.8 °FAverage March
37.5 °FHighest 10 March, 2025
73 °F
Climate (2020–Present)
Sioux City, Sioux Gateway Airport (11.2 miles)
Average Low 2020–2025
38.8 °FAverage 2020–2025
50.5 °FAverage High 2020–2025
62.3 °F