| NWS Forecast for: Washington County Issued by: National Weather Service Milwaukee, WI Last Update: 731 PM CDT Sat Aug 29 2026 |  |
Tonight: Mostly cloudy. Slight chance of light showers through around midnight, then chance of light showers and slight chance of thunderstorms after midnight. Lows in the upper 60s. South winds 5 to 10 mph. Chance of precipitation 50 percent. Sunday: Warm and humid. Partly sunny. Slight chance of light showers and thunderstorms in the morning. Chance of light showers in the afternoon. Slight chance of thunderstorms late in the afternoon. Highs in the mid 80s. Southwest winds 5 to 15 mph. Chance of precipitation 30 percent. Sunday Night: Mostly cloudy. Chance of light showers and slight chance of thunderstorms after midnight. Lows in the lower 70s. South winds up to 10 mph. Chance of precipitation 30 percent. Monday: Warm and humid. Partly sunny. Chance of light showers and slight chance of thunderstorms in the morning. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of precipitation 30 percent. Highest heat index readings 95 to 96 in the afternoon. Monday Night: Mostly cloudy. A 20 percent chance of light showers and thunderstorms after midnight. Lows in the lower 70s. Southwest winds up to 5 mph. Tuesday: Partly sunny with a 20 percent chance of light showers and thunderstorms. Highs in the upper 80s. Tuesday Night: Partly cloudy with a 20 percent chance of light showers and thunderstorms. Lows in the lower 70s. Wednesday: Partly sunny with a 20 percent chance of light showers and thunderstorms. Highs in the upper 80s. Wednesday Night: Partly cloudy. Slight chance of light showers and thunderstorms through around midnight, then slight chance of light showers after midnight. Lows in the upper 60s. Chance of precipitation 20 percent. Thursday: Partly sunny. A 20 percent chance of light showers in the morning. Highs in the lower 80s. Thursday Night: Partly cloudy. Slight chance of light showers through around midnight, then chance of light showers and slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of precipitation 30 percent. Friday: Partly sunny. A 20 percent chance of light showers in the morning. Highs in the lower 80s. Friday Night: Partly cloudy. Lows in the mid 60s. Saturday: Partly sunny. Highs in the lower 80s. | |
| Zone Forecast: Washington County | |
Visit your local NWS office at: https://www.weather.gov/mkx |