Live Weather & Forecast
Weather in Derry
Pennsylvania, United States · Real-time conditions & 3-day outlook
20°C
Feels like 20°C
68°F / Feels 68°F
Clear
Derry, Pennsylvania
🌙 Nighttime
Updated: 2026-04-12 22:15
Humidity
49%
Wind
8.3 km/h SSE
Wind Gust
17.4 km/h
Pressure
1020 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
25%
Dew Point
6.7°C
Wind Degree
158°
Air Quality Index
US EPA: Good
UK DEFRA: Low (2)
CO
183.9 μg/m³
NO₂
4.3 μg/m³
O₃
111 μg/m³
SO₂
6.6 μg/m³
PM 2.5
14.1 μg/m³
PM 10
14.4 μg/m³
Today's Hourly Forecast
24-hour breakdown for Derry, Pennsylvania
12 AM
7°
Clear
1 AM
6°
Clear
2 AM
6°
Clear
3 AM
6°
Clear
4 AM
5°
Clear
5 AM
5°
Clear
6 AM
5°
Clear
7 AM
6°
Sunny
8 AM
9°
Sunny
9 AM
11°
Sunny
10 AM
15°
Sunny
11 AM
18°
Sunny
12 PM
20°
Sunny
1 PM
23°
Sunny
2 PM
25°
Sunny
3 PM
26°
Sunny
4 PM
26°
Sunny
5 PM
26°
Sunny
6 PM
27°
Sunny
7 PM
24°
Sunny
8 PM
21°
Clear
9 PM
19°
Clear
10 PM
20°
Clear
11 PM
17°
Clear
3-Day Forecast
Daily overview for Derry, Pennsylvania
Today
Sunny
27°
/
5°
🌧️ 0% chance of rain
💧 Avg. humidity: 47%
💨 Max wind: 18 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:43 AM
🌇 Sunset: 07:53 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Patchy rain nearby
18°
/
14°
🌧️ 82% chance of rain
💧 Avg. humidity: 79%
💨 Max wind: 28.1 km/h
🌧️ Total precip: 3.77 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:42 AM
🌇 Sunset: 07:54 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Cloudy
25°
/
15°
🌧️ 0% chance of rain
💧 Avg. humidity: 77%
💨 Max wind: 24.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 06:40 AM
🌇 Sunset: 07:55 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Derry
Plan your trip to Derry, 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 Derry?
Current conditions in Derry: Clear, temperature 20°C, humidity 49%.
What is the best time to visit Derry?
The best time to visit Derry is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Derry?
Derry is located at approximately 40.3° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Derry?
The wettest period in Derry is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Derry?
For visits to Derry during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Derry in?
Derry is located in United States, in the state of Pennsylvania.
What are the public holidays in Derry in 2026?
View the 2026 public holidays for Derry on our Holidays page.
What are the GPS coordinates used for the weather forecast in Derry?
The weather forecast for Derry uses coordinates 40.334, -79.2998.