Milwaukee weather in August 2025

Expect daytime maximum temperatures of 79°F in Milwaukee, Wisconsin in August based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 3.5 inches of rainfall in the month.

  • 79°F maximum daytime temperature in August in Milwaukee79
    79°F max day temperature
  • 9 hours of sunshine per day
  • 9 days with some rainfall in August in Milwaukee9
    9 days with some rainfall
  • 61°F minimum night-time temperature in August in Milwaukee61
    61°F min night temperature
  • 14 hours of daylight per day in August in Milwaukee14
    14 hours of daylight per day
  • Low heat & humidity in August in MilwaukeeL
    Low heat & humidity
  • 3.5 inches monthly rainfall in August in Milwaukee3.5
    3.5 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Milwaukee8
    8 (Very High) UV index
  • 70°F sea temperature in August in Milwaukee70
    70°F sea temperature

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The August weather guide for Wisconsin (Milwaukee) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Milwaukee in August?

Daytime temperatures usually reach 79°F in Milwaukee in August with low heat and humidity, falling to 61°F at night.

How sunny is it in Milwaukee in August?

There are normally 9 hours of bright sunshine each day in Milwaukee in August - that's 65% of daylight hours.

How warm is the sea around Milwaukee in August?

The average sea temperature around Milwaukee in August is 70°F.

Does it rain in Milwaukee in August?

There are usually 9 days with some rain in Milwaukee in August and the average monthly rainfall is 3.5 inches.

Milwaukee August sunrise & sunset times

Browse the sunrise and sunset times for Milwaukee in August 2025. Select a month to view Milwaukee sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:43 19:12
Saturday, 16th August 2025 04:59 18:52
Sunday, 31st August 2025 05:15 18:28

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