Typical Weather in Washington DC, MD in August
87° F Avg High
70° F Avg Low
6 Rainy Days
☀️ Temperature Summary
August is a popular time of year to visit, with an inviting climate characterized by warm temperatures. August is one of the warmer months of the year for Washington DC, with highs averaging around 87°F. Overnight lows will be around 70°F on average.
Be ready to seek shade during the day, as mid-day temperatures can be dangerous if you're caught without a way to cool off. If you want to avoid the August heat, you may consider visiting in September instead, when highs are often closer to 80°.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
In August you can expect close to a 18% chance of rain for any given day. It rains less than usual in August, with total rainfall for the month typically near 3 inches.
Rainfall Throughout the Year
Planning a trip to Washington DC? Try our free trip weather planner