The weather in Upper Marlboro in August is hot. The average temperatures are between 21°C and 30°C.
You can expect rain for roughly half of the month of August in Upper Marlboro. 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 Upper Marlboro in August 2025.
If you’re planning to visit Upper Marlboro in the near future, we highly recommend that you review the 14 day weather forecast for Upper Marlboro before you arrive.
Temperatures
30° / 21°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
178
mm
Sun Hours
11.1
Hrs
