WIZ063-220900- Dane- Including the city of Madison 331 PM CDT Sat Jun 21 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY... .LATE THIS AFTERNOON...Breezy, sunny. Heat index readings 100 to 105. Southwest winds 20 to 25 mph with gusts to around 40 mph. .TONIGHT...Clear. Lows in the upper 70s. Southwest winds 15 to 20 mph with gusts to around 35 mph. Highest heat index readings 96 to 101 in the evening. .SUNDAY...Hot and humid. Sunny. Highs in the lower 90s. Southwest winds 15 to 20 mph. Highest heat index readings 101 to 106 in the late morning and afternoon. .SUNDAY NIGHT...Clear. Lows in the upper 70s. Southwest winds 10 to 20 mph. Highest heat index readings 95 to 99 in the evening. .MONDAY...Very warm and humid. Sunny. Chance of light showers and slight chance of thunderstorms in the afternoon. Highs in the lower 90s. Southwest winds 10 to 20 mph. Chance of precipitation 40 percent. Highest heat index readings 96 to 101 in the late morning and afternoon. .MONDAY NIGHT...Mostly cloudy with showers likely and chance of thunderstorms. Lows around 70. West winds up to 10 mph. Chance of precipitation 70 percent. Highest heat index readings 95 to 96 in the evening. .TUESDAY...Mostly cloudy with showers likely and chance of thunderstorms. Highs in the mid 80s. Chance of precipitation 70 percent. .TUESDAY NIGHT...Light showers and chance of thunderstorms. Lows in the upper 60s. Chance of precipitation 80 percent. .WEDNESDAY...Light showers and chance of thunderstorms. Highs in the mid 80s. Chance of precipitation 80 percent. .WEDNESDAY NIGHT...Showers and chance of thunderstorms. Lows in the upper 60s. Chance of precipitation 80 percent. .THURSDAY...Light showers likely and chance of thunderstorms. Highs in the mid 80s. Chance of precipitation 70 percent. .THURSDAY NIGHT...Mostly cloudy with showers likely and chance of thunderstorms. Lows in the mid 60s. Chance of precipitation 60 percent. .FRIDAY...Mostly cloudy with a 40 percent chance of light showers and thunderstorms. Highs in the lower 80s. .FRIDAY NIGHT...Partly cloudy with chance of light showers and slight chance of thunderstorms. Lows in the mid 60s. Chance of precipitation 30 percent. .SATURDAY...Partly sunny with a 40 percent chance of light showers and thunderstorms. Highs in the mid 80s.