Expires:202512211000;;942343 FPUS53 KMKX 210006 ZFPMKX SOUTH-CENTRAL AND SOUTHEAST WISCONSIN ZONE FORECAST National Weather Service Milwaukee/Sullivan WI 605 PM CST Sat Dec 20 2025 WIZ064-211000- Jefferson- Including the cities of Watertown, Fort Atkinson, and Jefferson 605 PM CST Sat Dec 20 2025 .TONIGHT...Clear. Lows around 8. Northwest winds 10 to 20 mph with gusts to around 35 mph. .SUNDAY...Colder, sunny. Highs in the mid 20s. West winds 5 to 10 mph shifting to the southwest in the afternoon. .SUNDAY NIGHT...Partly cloudy through around midnight, then cloudy with a 20 percent chance of light snow after midnight. Lows around 17. South winds 5 to 10 mph. .MONDAY...Not as cold. Cloudy. Chance of light snow, possibly mixed with rain in the morning. Highs in the upper 30s. South winds 5 to 10 mph. Chance of precipitation 30 percent. .MONDAY NIGHT...Not as cold. Mostly cloudy. Lows in the lower 30s. Southwest winds 5 to 10 mph. .TUESDAY...Partly sunny. Highs around 40. .TUESDAY NIGHT...Mostly cloudy. Lows in the lower 20s. .WEDNESDAY...Cloudy. A 30 percent chance of light rain in the afternoon. Highs in the lower 40s. .WEDNESDAY NIGHT...Cloudy. A 40 percent chance of light rain through around midnight. Not as cool. Lows in the mid 30s. .CHRISTMAS DAY...Cloudy. Highs in the upper 40s. .THURSDAY NIGHT...Partly cloudy through around midnight then becoming mostly cloudy. Lows in the lower 30s. .FRIDAY...Mostly cloudy. Highs in the lower 40s. .FRIDAY NIGHT...Mostly cloudy. Lows in the upper 20s. .SATURDAY...Mostly cloudy. A 20 percent chance of light rain in the afternoon. Highs in the upper 30s. $$