The weather in Bethesda 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 Bethesda. 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 Bethesda in August 2025.
If you’re planning to visit Bethesda in the near future, we highly recommend that you review the 14 day weather forecast for Bethesda before you arrive.
Temperatures
30° / 21°
Rainy Days
11
Snowy Days
0
Dry Days
20
Rainfall
119
mm
Sun Hours
7.0
Hrs
