Live Weather & Forecast
Weather in Adelphi
Maryland, United States · Real-time conditions & 3-day outlook
7°C
Feels like 5°C
45°F / Feels 42°F
Sunny
Adelphi, Maryland
🌞 Daytime
Updated: 2026-04-12 07:00
Humidity
81%
Wind
9.4 km/h E
Wind Gust
14.5 km/h
Pressure
1032 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
3.9°C
Wind Degree
95°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
201.9 μg/m³
NO₂
8.4 μg/m³
O₃
95 μg/m³
SO₂
4.3 μg/m³
PM 2.5
7.1 μg/m³
PM 10
7.6 μg/m³
Today's Hourly Forecast
24-hour breakdown for Adelphi, Maryland
12 AM
12°
Clear
1 AM
11°
Clear
2 AM
10°
Clear
3 AM
9°
Clear
4 AM
9°
Clear
5 AM
8°
Clear
6 AM
8°
Clear
7 AM
7°
Sunny
8 AM
9°
Sunny
9 AM
11°
Sunny
10 AM
14°
Sunny
11 AM
17°
Sunny
12 PM
19°
Sunny
1 PM
20°
Sunny
2 PM
22°
Sunny
3 PM
23°
Sunny
4 PM
23°
Sunny
5 PM
21°
Sunny
6 PM
21°
Sunny
7 PM
18°
Sunny
8 PM
16°
Overcast
9 PM
15°
Partly Cloudy
10 PM
14°
Clear
11 PM
14°
Clear
3-Day Forecast
Daily overview for Adelphi, Maryland
Today
Sunny
24°
/
7°
🌧️ 0% chance of rain
💧 Avg. humidity: 59%
💨 Max wind: 17.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:36 AM
🌇 Sunset: 07:43 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Cloudy
26°
/
12°
🌧️ 0% chance of rain
💧 Avg. humidity: 68%
💨 Max wind: 24.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:34 AM
🌇 Sunset: 07:44 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Partly Cloudy
29°
/
19°
🌧️ 0% chance of rain
💧 Avg. humidity: 46%
💨 Max wind: 14 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:33 AM
🌇 Sunset: 07:45 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Adelphi
Plan your trip to Adelphi, 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 Adelphi?
Current conditions in Adelphi: Sunny, temperature 7°C, humidity 81%.
What is the best time to visit Adelphi?
The best time to visit Adelphi is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Adelphi?
Adelphi is located at approximately 39° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Adelphi?
The wettest period in Adelphi is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Adelphi?
For visits to Adelphi during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Adelphi in?
Adelphi is located in United States, in the state of Maryland.
What are the public holidays in Adelphi in 2026?
View the 2026 public holidays for Adelphi on our Holidays page.
What are the GPS coordinates used for the weather forecast in Adelphi?
The weather forecast for Adelphi uses coordinates 38.9983, -76.9707.