Waukesha Weather in August

August in Waukesha brings high temperatures, with highs of 27°C (81°F) and nights dropping to 15°C (59°F). Rainfall is on the higher side this month, averaging around 103 mm (4.1 in), so keep a rain jacket handy.

Rainfall in Waukesha in August

You can expect rain on roughly 11 days based on historical data, averaging 103 mm (4.1 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Waukesha in August

August in Waukesha sees highs of 27°C (81°F) and lows of 15°C (59°F) overnight. The summer season takes place during August. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 15°C (59°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Waukesha in August

The days are predominantly sunny, with an estimated total of around 282 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

If you prefer enjoying temperate temperatures and rain-free days, May, July and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.