August weather forecast
Wisconsin, USA

August in Wisconsin serves as the summer's closing act, maintaining warmth but signaling a transition to the cooler days of autumn. The temperature in the northern regions generally spans from 55°F (12.8°C) to 75°F (23.9°C), while the southern areas can expect readings from 60°F (15.6°C) to 85°F (29.4°C). While still warm, there's a gradual decline in heat compared to July, as August prepares Wisconsin for the coming fall.

Rainfall in August is often sporadic, featuring less frequent but occasionally intense thunderstorms. The state is still susceptible to flooding, particularly near rivers and lakes. It's also a time when summer drought conditions can develop, particularly in the southern regions where the agriculture sector closely monitors moisture levels.

Cities adjacent to Lake Michigan, including Green Bay and Milwaukee, usually experience a pleasant respite from the heat during the evening hours. The lake continues to temper the climate, creating localized weather patterns that can be cooler and more comfortable than inland conditions.

Daylight starts its decline in August, shortening gradually as the state moves toward autumn. Nonetheless, outdoor activities remain popular, and the state's natural beauty is at a premium with its lakes and forests offering scenic backdrops for recreation.

August is crucial for agriculture, serving as a vital month for the maturation of several key crops, including corn and soybeans. It marks the end of the growing season for certain vegetables and fruits as well, making it a busy time for farmers. The month combines the lingering warmth of summer with a hint of the approaching fall, encapsulating a transitional period that both residents and tourists find appealing for a variety of outdoor endeavors.

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• Madison - August »
  In Madison, Wisconsin, in August, during 5.4 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. On the first day of August in Madison sunrise is at 5:49 am and sunset at 8:18 pm.
• Milwaukee - August »
  The month with the warmest seawater in Milwaukee is August, with an average ocean temperature of 72°F (22.2°C). July and August, with an average of 10.4h of sunshine, are months with the most sunshine in Milwaukee, Wisconsin.
• Green Bay - August »
  The month with the warmest seawater in Green Bay is August, with an average ocean temperature of 67.6°F (19.8°C). On the first day of August in Green Bay, Wisconsin, sunrise is at 5:39 am and sunset at 8:17 pm.
• Kenosha - August »
  With an average ocean temperature of 72.1°F (22.3°C), August is the month with the warmest seawater in Kenosha, Wisconsin. With an average ocean temperature of 72.1°F (22.3°C), August is the month with the warmest seawater in Kenosha.
• Racine - August »
  The months with the highest UV index in Racine are July and August, with an average maximum UV index of 6. In Racine, in August, during 12.7 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.
• Appleton - August »
  In Appleton during August, the rain falls for 12.8 days and regularly aggregates up to 1.85" (47mm) of precipitation. Appleton experiences an average high-temperature of a still warm 77.4°F (25.2°C) with the onset of August, subtly varied from July's 78.4°F (25.8°C).
• Waukesha - August »
  On the first day of August in Waukesha sunrise is at 5:44 am and sunset at 8:13 pm. In Waukesha in August, during 13.2 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.
• Eau Claire - August »
  In Eau Claire in August, it is raining for 14.3 days, with typically 2.36" (60mm) of accumulated precipitation. Eau Claire greets August with an average high-temperature of a still warm 76.8°F (24.9°C), marking a slight deviation from the preceding month.
• Oshkosh - August »
  In Oshkosh, during August, the rain falls for 12.9 days and regularly aggregates up to 1.85" (47mm) of precipitation. On the first day of August in Oshkosh, sunrise is at 5:43 am and sunset at 8:17 pm.
• Janesville - August »
  August in Janesville carries on the torch of summer, ensuring warm temperatures, clear skies, and longer daylight hours. The high-temperature in Janesville during August is 78.1°F (25.6°C) and the low-temperature is 60.3°F (15.7°C).
• West Allis - August »
  In West Allis during August, the rain falls for 14.9 days and regularly aggregates up to 2.17" (55mm) of precipitation. August continues the warm trend of July in West Allis, offering high temperatures and ample sunshine.
• La Crosse - August »
  The months with the most sunshine in La Crosse are July and August, with an average of 9.7h of sunshine. In La Crosse, Wisconsin, during August, the rain falls for 12.7 days and regularly aggregates up to 2.36" (60mm) of precipitation.