Live Weather & Forecast
Weather in Irwin
Pennsylvania, United States · Real-time conditions & 3-day outlook
26°C
Feels like 27°C
79°F / Feels 80°F
Sunny
Irwin, Pennsylvania
🌞 Daytime
Updated: 2026-04-12 17:00
Humidity
32%
Wind
11.2 km/h SW
Wind Gust
19.8 km/h
Pressure
1020 mb
Visibility
9 km
UV Index
2
(Low)
Precipitation
0 mm
Cloud Cover
1%
Dew Point
10.8°C
Wind Degree
230°
Air Quality Index
US EPA: Good
UK DEFRA: Low (2)
CO
262.9 μg/m³
NO₂
15.1 μg/m³
O₃
94 μg/m³
SO₂
7.1 μg/m³
PM 2.5
12.1 μg/m³
PM 10
12.4 μg/m³
Weather Alerts 1
Met
· Moderate · Expected
Special Weather Statement issued April 12 at 4:55AM EDT by NWS State College PA
The combination of drying fine fuels and leaf litter, low relative humidity of around 35 percent and a southerly wind gusting between 20 and 25 mph during the late morning and afternoon hours, will create an elevated risk of wildfire spread across the southern half of Pennsylvania today. Residents are urged to exercise caution if handling any potential ignition sources, such as machinery, cigaret...
Today's Hourly Forecast
24-hour breakdown for Irwin, Pennsylvania
12 AM
8°
Clear
1 AM
7°
Clear
2 AM
7°
Clear
3 AM
7°
Clear
4 AM
6°
Clear
5 AM
6°
Clear
6 AM
6°
Clear
7 AM
7°
Sunny
8 AM
9°
Sunny
9 AM
12°
Sunny
10 AM
17°
Sunny
11 AM
19°
Sunny
12 PM
23°
Sunny
1 PM
26°
Sunny
2 PM
27°
Sunny
3 PM
28°
Sunny
4 PM
29°
Sunny
5 PM
26°
Sunny
6 PM
24°
Partly Cloudy
7 PM
23°
Cloudy
8 PM
22°
Clear
9 PM
21°
Partly Cloudy
10 PM
20°
Partly Cloudy
11 PM
20°
Overcast
3-Day Forecast
Daily overview for Irwin, Pennsylvania
Today
Sunny
29°
/
6°
🌧️ 0% chance of rain
💧 Avg. humidity: 53%
💨 Max wind: 16.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:45 AM
🌇 Sunset: 07:55 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Patchy rain nearby
22°
/
16°
🌧️ 59% chance of rain
💧 Avg. humidity: 74%
💨 Max wind: 29.2 km/h
🌧️ Total precip: 1.7 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:44 AM
🌇 Sunset: 07:56 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Overcast
23°
/
19°
🌧️ 0% chance of rain
💧 Avg. humidity: 70%
💨 Max wind: 23.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2
🌅 Sunrise: 06:42 AM
🌇 Sunset: 07:57 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Irwin
Plan your trip to Irwin, 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 Irwin?
Current conditions in Irwin: Sunny, temperature 26°C, humidity 32%.
What is the best time to visit Irwin?
The best time to visit Irwin is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Irwin?
Irwin is located at approximately 40.3° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Irwin?
The wettest period in Irwin is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Irwin?
For visits to Irwin during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Irwin in?
Irwin is located in United States, in the state of Pennsylvania.
What are the public holidays in Irwin in 2026?
View the 2026 public holidays for Irwin on our Holidays page.
What are the GPS coordinates used for the weather forecast in Irwin?
The weather forecast for Irwin uses coordinates 40.3302, -79.7093.