Weather World
Blackhawk Island, WI 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Blackhawk Island Weather Forecast
Blackhawk Island, WI Weather Forecast Date: 731 AM CDT Tue Sep 01 2026
Weather forecast for Blackhawk Island, WI
Today Hi: 90°FHi: 32°C Lo: 71°F Lo: 22°C |
Today... Very warm and humid. Partly sunny. Patchy fog in the morning. A 20% chance of light showers and thunderstorms in the afternoon. Highs around 90. West winds up to 10 mph. Highest heat index readings 95 to 98 in the afternoon. |
Wed Hi: 90°FHi: 32°C Lo: 70°F Lo: 21°C |
Wednesday... Very warm. Partly sunny until late afternoon then clearing. A 30% chance of light showers and thunderstorms in the afternoon. Highs around 90. Southwest winds up to 10 mph. Highest heat index readings 95 to 96 in the afternoon. |
| Thu Hi: 85°FHi: 29°C Lo: 70°F Lo: 21°C |
Thursday... Warm and humid. Partly sunny. Light showers likely and chance of thunderstorms in the morning, then slight chance of light showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds up to 5 mph. Chance of precipitation 60%. |
| Fri Hi: 89°FHi: 32°C Lo: 69°F Lo: 21°C |
Friday... Partly sunny. A 50% chance of showers and thunderstorms in the morning. Highs in the upper 80s. |
| Sat Hi: 85°FHi: 29°C Lo: 69°F Lo: 21°C |
Saturday... Partly sunny with a 20% chance of light showers and thunderstorms. Highs in the mid 80s. |
Sun Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Sunday... Partly sunny with a 20% chance of light showers. Highs in the lower 80s. |
Labor Day Hi: 79°FHi: 26°C |
Labor Day... Partly sunny. Highs in the upper 70s. |
Blackhawk Island Radar Loop
Use the map search tool if you want to place a location marker on the radar map...