The temperatures in Oshkosh in August are comfortable with low of 17°C and and high up to 25°C.
You can expect rain for roughly half of the month of August in Oshkosh. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Oshkosh in August 2025.
If you’re planning to visit Oshkosh in the near future, we highly recommend that you review the 14 day weather forecast for Oshkosh before you arrive.
Temperatures
25° / 17°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
104
mm
Sun Hours
7.6
Hrs
