Live Weather & Forecast
Weather in Potomac
Maryland, United States · Real-time conditions & 3-day outlook
18°C
Feels like 18°C
65°F / Feels 65°F
Partly cloudy
Potomac, Maryland
🌙 Nighttime
Updated: 2026-04-17 05:30
Humidity
87%
Wind
14.4 km/h WNW
Wind Gust
22 km/h
Pressure
1012 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
50%
Dew Point
13.4°C
Wind Degree
295°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
182.9 μg/m³
NO₂
10.2 μg/m³
O₃
74 μg/m³
SO₂
7.5 μg/m³
PM 2.5
9.6 μg/m³
PM 10
10.3 μg/m³
Weather Alerts 1
Met
· Unknown · Unknown
Monitoring message only. Please disregard.
Monitoring message only. Please disregard.
Today's Hourly Forecast
24-hour breakdown for Potomac, Maryland
12 AM
24°
Clear
1 AM
23°
Clear
2 AM
22°
Clear
3 AM
21°
Clear
4 AM
21°
Clear
5 AM
18°
Partly cloudy
6 AM
19°
Clear
7 AM
20°
Sunny
8 AM
21°
Sunny
9 AM
22°
Sunny
10 AM
24°
Sunny
11 AM
25°
Sunny
12 PM
26°
Partly Cloudy
1 PM
26°
Partly Cloudy
2 PM
27°
Partly Cloudy
3 PM
28°
Sunny
4 PM
29°
Sunny
5 PM
28°
Sunny
6 PM
28°
Sunny
7 PM
25°
Sunny
8 PM
24°
Clear
9 PM
23°
Clear
10 PM
22°
Clear
11 PM
21°
Partly Cloudy
3-Day Forecast
Daily overview for Potomac, Maryland
Today
Sunny
30°
/
18°
🌧️ 0% chance of rain
💧 Avg. humidity: 54%
💨 Max wind: 20.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:29 AM
🌇 Sunset: 07:48 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Partly Cloudy
29°
/
17°
🌧️ 0% chance of rain
💧 Avg. humidity: 65%
💨 Max wind: 18.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2
🌅 Sunrise: 06:28 AM
🌇 Sunset: 07:49 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Sun, Apr 19
Patchy rain nearby
16°
/
7°
🌧️ 80% chance of rain
💧 Avg. humidity: 66%
💨 Max wind: 27 km/h
🌧️ Total precip: 4.57 mm
☀️ UV Index: 0.4
🌅 Sunrise: 06:26 AM
🌇 Sunset: 07:50 PM
🌙 Waxing Crescent
🌑 Moon: 3% lit
Best Time to Visit Potomac
Plan your trip to Potomac, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Potomac?
Current conditions in Potomac: Partly cloudy, temperature 18°C, humidity 87%.
What is the best time to visit Potomac?
The best time to visit Potomac is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Potomac?
Potomac is located at approximately 39° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Potomac?
The wettest period in Potomac is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Potomac?
For visits to Potomac during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Potomac in?
Potomac is located in United States, in the state of Maryland.
What are the public holidays in Potomac in 2026?
View the 2026 public holidays for Potomac on our Holidays page.
What are the GPS coordinates used for the weather forecast in Potomac?
The weather forecast for Potomac uses coordinates 39.0179, -77.2095.