County Forecast for Baraboo , WI
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160900-
Sauk-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac,
and Sauk City
430 PM CDT Wed Jul 15 2026

..heat advisory remains in effect until 8 pm cdt this evening   
Late this afternoon   Mostly sunny. Heat index readings 98 to 103. Northwest winds up to 5 mph.
Tonight   Partly cloudy. Patchy fog after midnight. Areas of smoke early in the morning. Lows around 70. North winds up to 5 mph shifting to the east after midnight. Highest heat index readings 96 to 101 in the evening.
Thursday   Very warm and humid. Partly sunny. Patchy fog in the morning. Areas of smoke until late afternoon. Isolated light showers late in the morning. Scattered light showers and thunderstorms in the afternoon. Highs around 90. Southeast winds up to 5 mph. Chance of precipitation 30 percent. Highest heat index readings 95 to 100 in the late morning and afternoon.
Thursday night   Partly cloudy. Isolated thunderstorms through around midnight. Isolated light showers through the night. Isolated thunderstorms early in the morning. Patchy smoke after midnight. Lows in the upper 60s. Southeast winds up to 5 mph. Chance of precipitation 20 percent.
Friday   Very warm and humid. Mostly sunny. Chance of light showers and slight chance of thunderstorms in the afternoon. Highs around 90. Southwest winds up to 10 mph. Chance of precipitation 40 percent. Highest heat index readings 95 to 98 in the afternoon.
Friday night   Mostly clear. Lows in the lower 70s. Southwest winds 5 to 10 mph. Highest heat index readings 95 to 96 in the evening.
Saturday   Sunny. Highs in the upper 80s.
Saturday night   Mostly clear. Lows in the lower 60s.
Sunday   Sunny. Highs in the mid 80s.
Sunday night   Partly cloudy with a 40 percent chance of light showers. Lows in the mid 60s.
Monday   Partly sunny with a 40 percent chance of light showers and thunderstorms. Highs in the upper 80s.
Monday night   Mostly clear. Chance of light showers and slight chance of thunderstorms through around midnight. Lows in the mid 60s. Chance of precipitation 30 percent.
Tuesday   Sunny. Highs in the lower 80s.
Tuesday night   Mostly clear. Lows in the upper 50s.
Wednesday   Mostly sunny. Highs in the upper 70s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Heat Continues, But Showers Spreading North Thursday
Posted at 11:59AM Wed Jul 15, 2026 CDT
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