Rockville (MD)
May
Weather in Rockville, Maryland for May 2026
Your guide to Rockville weather in May - trends and predictions
In general, the average temperature in Rockville at the beginning of May is 23.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19 °F by the end of May.
Rockville in May brings notable rainfall, with an average of 19 rainy days and a total precipitation of 366.4 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
12
Dry days
19
Rainy days
0
Snow days
22°/14°
Temperatures
17 km/h
Avg max wind
75 %
Avg humidity
Rockville Weather May
Move between months or click on a day
Temperatures trend during May in Rockville
See the weather trend as well as the moving average line
May weather in Rockville day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Moderate rain at times | 26° /15° | 1.1 mm | 6 | |
| May 2 |  Overcast | 27° /18° | 0 mm | 6 | |
| May 3 | Moderate or heavy rain shower | 28° /18° | 13.7 mm | 6 | |
| May 4 | Moderate or heavy rain shower | 21° /17° | 13.9 mm | 5 | |
| May 5 | Moderate or heavy rain shower | 22° /16° | 18.9 mm | 5 | |
| May 6 | Moderate or heavy rain shower | 21° /15° | 10.2 mm | 5 | |
| May 7 |  Cloudy | 22° /14° | 0 mm | 5 | |
| May 8 | Moderate or heavy rain shower | 22° /15° | 6.3 mm | 5 | |
| May 9 | Moderate or heavy rain shower | 16° /10° | 6.8 mm | 4 | |
| May 10 | Cloudy | 22° /7° | 0 mm | 5 | |
| May 11 |  Partly cloudy | 24° /12° | 0 mm | 6 | |
| May 12 | Overcast | 23° /14° | 2.6 mm | 5 | |
| May 13 | Moderate or heavy rain shower | 19° /17° | 42.9 mm | 4 | |
| May 14 | Moderate or heavy rain shower | 23° /16° | 36.7 mm | 5 | |
| May 15 |  Patchy rain possible | 26° /17° | 5.7 mm | 6 | |
| May 16 | Moderate or heavy rain shower | 30° /18° | 6.6 mm | 7 | |
| May 17 | Overcast | 29° /20° | 0 mm | 6 | |
| May 18 | Patchy rain possible | 23° /16° | 0.4 mm | 5 | |
| May 19 | Overcast | 21° /12° | 0 mm | 5 | |
| May 20 | Overcast | 19° /9° | 0 mm | 4 | |
| May 21 | Moderate or heavy rain shower | 15° /11° | 8.2 mm | 4 | |
| May 22 | Moderate or heavy rain shower | 19° /11° | 9.4 mm | 4 | |
| May 23 | Patchy rain possible | 18° /10° | 0.4 mm | 4 | |
| May 24 | Cloudy | 19° /10° | 0 mm | 4 | |
| May 25 | Partly cloudy | 20° /9° | 0 mm | 6 | |
| May 26 | Overcast | 20° /12° | 0 mm | 5 | |
| May 27 | Overcast | 20° /13° | 0 mm | 5 | |
| May 28 |  Heavy rain | 11° /11° | 64.5 mm | 3 | |
| May 29 |  Fog | 23° /13° | 0 mm | 5 | |
| May 30 |  Moderate or heavy rain with thunder | 20° /16° | 37.5 mm | 5 | |
| May 31 | Moderate rain at times | 19° /14° | 80.5 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Rockville in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Rockville forecast closer to your planned date for the most up-to-date weather information.
Change Month
Rockville in May - FAQ
What are the expected maximum and minimum temperatures in Rockville during May?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Rockville during May?
Significant rainfall exceeding 366.4 mm is expected in Rockville during May, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Rockville during May?
The average wind speed in Rockville during May is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Rockville
Explore the daily rainfall trends and prepare for Rockvilles May weather 💧
Typically, Rockville has 19 rainy days in May with a total of 366.4 mm of rainfall.
UV exposure in Rockville during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Quick links
More Rockville weather pages
You are here
Where is Rockville?Get accurate weather forecasts for Rockville, located at latitude 39.084 and longitude -77.153. Stay updated with localized weather information tailored for Rockville.
Found a mistake?
We appreciate your attention to details. Tell us here.