Live Weather & Forecast
Weather in Williamsport
Pennsylvania, United States · Real-time conditions & 3-day outlook
16°C
Feels like 16°C
61°F / Feels 61°F
Light rain
Williamsport, Pennsylvania
🌞 Daytime
Updated: 2026-04-15 09:45
Humidity
97%
Wind
3.6 km/h SSW
Wind Gust
10.8 km/h
Pressure
1014 mb
Visibility
8 km
UV Index
1.6
(Low)
Precipitation
0.06 mm
Cloud Cover
100%
Dew Point
16.7°C
Wind Degree
202°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
154.9 μg/m³
NO₂
2.4 μg/m³
O₃
107 μg/m³
SO₂
7.1 μg/m³
PM 2.5
9.2 μg/m³
PM 10
10.1 μg/m³
Today's Hourly Forecast
24-hour breakdown for Williamsport, Pennsylvania
12 AM
18°
Clear
1 AM
18°
Clear
2 AM
17°
Clear
3 AM
17°
Clear
4 AM
16°
Clear
5 AM
16°
Clear
6 AM
16°
Clear
7 AM
17°
Sunny
8 AM
18°
Sunny
9 AM
16°
Light rain
10 AM
22°
Patchy rain nearby
11 AM
24°
Sunny
12 PM
26°
Sunny
1 PM
28°
Sunny
2 PM
29°
Sunny
3 PM
29°
Sunny
4 PM
29°
Sunny
5 PM
29°
Sunny
6 PM
28°
Sunny
7 PM
27°
Thundery outbreaks in nearby
8 PM
25°
Thundery outbreaks in nearby
9 PM
22°
Overcast
10 PM
24°
Overcast
11 PM
22°
Clear
3-Day Forecast
Daily overview for Williamsport, Pennsylvania
Today
Patchy rain nearby
30°
/
16°
🌧️ 87% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 17.3 km/h
🌧️ Total precip: 0.42 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:28 AM
🌇 Sunset: 07:49 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Patchy rain nearby
24°
/
16°
🌧️ 81% chance of rain
💧 Avg. humidity: 72%
💨 Max wind: 19.8 km/h
🌧️ Total precip: 3.97 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:27 AM
🌇 Sunset: 07:50 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Overcast
23°
/
11°
🌧️ 0% chance of rain
💧 Avg. humidity: 70%
💨 Max wind: 11.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:25 AM
🌇 Sunset: 07:51 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Williamsport
Plan your trip to Williamsport, 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 Williamsport?
Current conditions in Williamsport: Light rain, temperature 16°C, humidity 97%.
What is the best time to visit Williamsport?
The best time to visit Williamsport is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Williamsport?
Williamsport is located at approximately 41.2° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Williamsport?
The wettest period in Williamsport is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Williamsport?
For visits to Williamsport during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Williamsport in?
Williamsport is located in United States, in the state of Pennsylvania.
What are the public holidays in Williamsport in 2026?
View the 2026 public holidays for Williamsport on our Holidays page.
What are the GPS coordinates used for the weather forecast in Williamsport?
The weather forecast for Williamsport uses coordinates 41.2412, -77.0011.