Historical weather data, all-time temperature records, and monthly climate averages for Bethesda, MD. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Bethesda typically feels like a gentle transition into spring, with average highs around 65° and lows of 40°. The date has a wide range in the record books though — it's reached as warm as 85° back in 1956 and dropped as low as 19° in 1992. There's about a 4-in-10 chance of rain today, but snow is essentially off the table.
Bethesda's weather has real extremes hiding behind its mid-Atlantic reputation. The thermometer has swung from a brutal -11° in January 1985 all the way to a scorching 105° in August 1997, a 116-degree spread. A single June day in 1972 dumped nearly 6 inches of rain, and a February 2010 snowstorm buried the city under 20 inches in one shot.
Bethesda has a classic four-season rhythm — summers are genuinely hot, with average highs hitting 90° in mid-July, while January and February cool off to the mid-to-upper 40s. If you're visiting, May through early June and September are the sweet spots: mild temps and lower humidity before the summer heat peaks. Late July is the wettest stretch of the year, so pack accordingly.