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Blackhawk Island, WI 14 Day Weather
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Blackhawk Island, WI Weather Forecast
Blackhawk Island, WI Weather Forecast Dated: 449 PM Mon Aug 31 2026 (Blackhawk Island Time)
Expect a very warm period with a mix of sun and clouds and frequent chances of rain over the next two weeks. generally humid conditions and no major pressure swings will dominate.
Monday, August 31, 2026
Mid-Morning
78°F 26°C
Sunny
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
83°F 29°C
Overcast
Hot with mostly sunny skies in the morning, mostly sunny in the afternoon, and mostly cloudy in the evening, steady humidity and steady pressure. Winds shifting from SSW to WSW at 8 mph 13 km/h.
Tuesday, September 1, 2026
Mid-Morning
76°F 25°C
Overcast
Mid-Afternoon
85°F 29°C
Nearby Thunderstorms
Early-Evening
82°F 28°C
Nearby Thunderstorms
Very warm with cloudy skies, steady humidity and steady pressure. Isolated thunderstorms possible.
Wednesday, September 2, 2026
Mid-Morning
75°F 24°C
Overcast
Mid-Afternoon
82°F 28°C
Nearby Thunderstorms
Early-Evening
78°F 26°C
Light Showers
Very warm with cloudy skies, steady humidity and steady pressure. Spotty thunderstorms possible. Winds increasing from the NE at 4 mph 6 km/h to SW at 12 mph 19 km/h.
Thursday, September 3, 2026
Mid-Morning
74°F 23°C
Overcast
Mid-Afternoon
83°F 28°C
Overcast
Early-Evening
81°F 28°C
Nearby Thunderstorms
Very warm with overcast skies, steady humidity and steady pressure.
Friday, September 4, 2026
Mid-Morning
76°F 24°C
Partly Cloudy
Mid-Afternoon
84°F 29°C
Light Showers
Early-Evening
80°F 26°C
Nearby Thunderstorms
Very warm with a mix of sun and clouds, steady humidity and steady pressure. Winds shifting from SSE to E at 5 mph 8 km/h.
Saturday, September 5, 2026
Mid-Morning
76°F 24°C
Light Fog
Mid-Afternoon
84°F 29°C
Nearby Thunderstorms
Early-Evening
76°F 24°C
Sunny
Very warm with cloudy skies, steady humidity and steady pressure. Isolated thunderstorms possible. Winds shifting from ESE to ENE at 10 mph 15 km/h.
Sunday, September 6, 2026
Mid-Morning
71°F 22°C
Light Fog
Mid-Afternoon
80°F 27°C
Overcast
Early-Evening
74°F 24°C
Overcast
Very warm with overcast skies, steady humidity and steady pressure. Winds shifting from ESE to SE at 8 mph 13 km/h.
Monday, September 7, 2026
Mid-Morning
68°F 20°C
Overcast
Mid-Afternoon
64°F 18°C
Light Showers
Early-Evening
64°F 18°C
Overcast
Cool with a mix of sun and clouds, steady humidity and steady pressure. Winds SE at 15 mph 25 km/h.
Tuesday, September 8, 2026
Mid-Morning
68°F 20°C
Sunny
Mid-Afternoon
81°F 27°C
Partly Cloudy
Early-Evening
79°F 26°C
Overcast
Very warm with partly sunny skies in the morning, then mostly cloudy for the afternoon and evening, steady humidity and steady pressure. Winds shifting from SSW to ESE at 8 mph 12 km/h.
Wednesday, September 9, 2026
Mid-Morning
64°F 18°C
Light Fog
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
64°F 18°C
Overcast
Warm with mostly sunny skies in the morning, partly sunny in the afternoon, and mostly sunny in the evening, steady humidity and steady pressure. Winds shifting from NE to E at 9 mph 15 km/h.
Thursday, September 10, 2026
Mid-Morning
67°F 20°C
Sunny
Mid-Afternoon
78°F 26°C
Sunny
Early-Evening
73°F 23°C
Overcast
Warm with mostly sunny skies in the morning, partly sunny in the afternoon, and mostly sunny in the evening, steady humidity and steady pressure. Winds shifting from SE to SSE at 9 mph 15 km/h.
Friday, September 11, 2026
Mid-Morning
72°F 22°C
Sunny
Mid-Afternoon
83°F 28°C
Sunny
Early-Evening
79°F 26°C
Sunny
Very warm with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure.
Saturday, September 12, 2026
Mid-Morning
75°F 24°C
Sunny
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
79°F 26°C
Nearby Thunderstorms
Very warm with mostly sunny skies in the morning, mostly sunny in the afternoon, and mostly cloudy in the evening, steady humidity and steady pressure.
Sunday, September 13, 2026
Mid-Morning
76°F 25°C
Scattered Showers
Mid-Afternoon
86°F 30°C
Cloudy
Early-Evening
82°F 28°C
Sunny
Very warm with mostly cloudy skies, steady humidity and steady pressure.
Blackhawk Island, WI Weather Radar Map
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