The weather in Rockville in August is hot. The average temperatures are between 20°C and 30°C.
You can expect rain for roughly half of the month of August in Rockville. 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 Rockville in August 2025.
If you’re planning to visit Rockville in the near future, we highly recommend that you review the 14 day weather forecast for Rockville before you arrive.
Temperatures
30° / 20°
Rainy Days
12
Snowy Days
0
Dry Days
19
Rainfall
122
mm
Sun Hours
7.2
Hrs
