Oswego Weather in July

The climate in Oswego during July can be summarized as hot and a little damp.

July is in the summer in Oswego and is typically the warmest month of the year. Daytime maximum temperatures average around a warm 33°C (92°F), whilst at night 20°C (69°F) is normal.

On average July is the 6th driest month of the year in Oswego with around 86mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 11.3 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Oswego in July 2025.