Downtown Green Bay and the Fox River

Weather · August

Green Bay weather in August

Average highs of 79°F, lows of 58°F and 3.4 in of rain, from 30 years of weather records.

August is Green Bay’s 2nd warmest month, with average highs of 79°F and lows of 58°F. That is 2° cooler than July, and 24° above the yearly average high.

Average high
79°F
Average low
58°F
Precipitation
3.4 in
Wet days
10
Sunrise · sunset
5:54 AM · 7:58 PM

August across the year

  1. 26°11°Jan
  2. 29°13°Feb
  3. 40°24°Mar
  4. 54°35°Apr
  5. 67°46°May
  6. 77°56°Jun
  7. 81°60°Jul
  8. 79°58°Aug
  9. 72°50°Sep
  10. 58°40°Oct
  11. 44°29°Nov
  12. 31°18°Dec

High and low Rain

What to wear in August

  • Warm days: shorts and T-shirts, with a light layer for cooler evenings.
  • Pack an umbrella or rain jacket: rain or snow falls on about 10 days this month.

August is good for

Around Green Bay

Fox Theatre--Meyer Theatre, Green Bay
Green Bay July 2024 059 (Fox Theatre--Meyer Theatre)Michael Barera · CC BY-SA 4.0
Associated Bank- Green Bay, WI
Associated Bank- Green Bay, WI - Flickr - MichaelSteeber (1)Michael Steeber from USA · CC BY-SA 2.0
Brown County Central Library - Jan 2026, Green Bay
Brown County Central Library - Jan 2026 01Emrouse · CC BY 4.0

See Green Bay

A look around town before you go.

August compared with the months around it

MonthHighLowRain
July81°F60°F3.6 in
August79°F58°F3.4 in
September72°F50°F3.2 in

Planning a trip? See the best time to visit Green Bay and today’s forecast.

Questions

How hot does it get in Green Bay in August?

Average highs are 79°F and average lows 58°F, for a daily mean of 69°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Green Bay in August?

August averages 3.4 in of precipitation over about 10 days with at least 0.01 in. It is the 4th wettest month of the year.

What time is sunset in Green Bay in August?

Around mid-August the sun rises about 5:54 AM and sets about 7:58 PM, for roughly 14.1 hours of daylight.

Is August a good time to visit Green Bay?

Yes. August is one of the mildest months, with highs between 65°F and 85°F and little rain.

NOAA U.S. Climate Normals 1991–2020, Green Bay station (4.8 mi from downtown). Sunrise and sunset are calculated for August 15 at the city’s coordinates.

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