Thu Feb 20 09:59:58 AM EST 2025 Union- Including the cities of North Sioux City, Beresford, Elk Point, Alcester, and Jefferson 858 AM CST Thu Feb 20 2025 .REST OF TODAY...Sunny. Not as cold with highs around 11. Northwest winds 5 to 10 mph. Wind chill values as low as 32 below. .TONIGHT...Clear, cold with lows around 10 below. South winds 5 to 10 mph. Wind chill values as low as 23 below. .FRIDAY...Sunny. Highs around 20. South winds 15 to 20 mph with gusts up to 30 mph. Wind chill values as low as 23 below in the morning. .FRIDAY NIGHT...Mostly clear. Not as cold with lows around 6 above. South winds 10 to 15 mph. .SATURDAY...Sunny. Not as cool with highs in the mid 30s. Southwest winds 5 to 10 mph. .SATURDAY NIGHT...Partly cloudy in the evening, then clearing. Not as cool with lows in the lower 20s. .SUNDAY...Mostly sunny. Highs in the mid 40s. .SUNDAY NIGHT...Partly cloudy. Not as cool with lows in the lower 30s. .MONDAY...Mostly sunny. Highs in the mid 50s. .MONDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 30s. .TUESDAY...Mostly sunny. Highs in the lower 50s. .TUESDAY NIGHT...Mostly cloudy. A slight chance of rain in the evening, then a chance of rain after midnight. Lows in the lower 30s. Chance of rain 30 percent. .WEDNESDAY...Partly sunny with a 30 percent chance of rain. Highs in the upper 40s.