Live Weather & Forecast
Weather in Williamsport
Pennsylvania, United States · Real-time conditions & 3-day outlook
17°C
Feels like 17°C
62°F / Feels 62°F
Mist
Williamsport, Pennsylvania
🌙 Nighttime
Updated: 2026-04-16 01:45
Humidity
100%
Wind
8.3 km/h W
Wind Gust
17.4 km/h
Pressure
1013 mb
Visibility
4.8 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
15.2°C
Wind Degree
263°
Air Quality Index
US EPA: Good
UK DEFRA: Low (2)
CO
169.9 μg/m³
NO₂
7.8 μg/m³
O₃
76 μg/m³
SO₂
6.5 μg/m³
PM 2.5
14.2 μg/m³
PM 10
15.1 μg/m³
Today's Hourly Forecast
24-hour breakdown for Williamsport, Pennsylvania
12 AM
21°
Clear
1 AM
17°
Mist
2 AM
20°
Clear
3 AM
19°
Clear
4 AM
19°
Clear
5 AM
18°
Clear
6 AM
18°
Clear
7 AM
19°
Sunny
8 AM
20°
Sunny
9 AM
22°
Sunny
10 AM
25°
Sunny
11 AM
27°
Sunny
12 PM
28°
Sunny
1 PM
28°
Partly Cloudy
2 PM
28°
Thundery outbreaks in nearby
3 PM
28°
Overcast
4 PM
28°
Cloudy
5 PM
27°
Partly Cloudy
6 PM
26°
Cloudy
7 PM
25°
Overcast
8 PM
25°
Clear
9 PM
24°
Partly Cloudy
10 PM
22°
Overcast
11 PM
20°
Overcast
3-Day Forecast
Daily overview for Williamsport, Pennsylvania
Today
Partly Cloudy
29°
/
18°
🌧️ 0% chance of rain
💧 Avg. humidity: 65%
💨 Max wind: 19.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:27 AM
🌇 Sunset: 07:50 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Partly Cloudy
19°
/
11°
🌧️ 0% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 10.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:25 AM
🌇 Sunset: 07:51 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Patchy rain nearby
22°
/
9°
🌧️ 82% chance of rain
💧 Avg. humidity: 82%
💨 Max wind: 22.7 km/h
🌧️ Total precip: 2.22 mm
☀️ UV Index: 1.4
🌅 Sunrise: 06:24 AM
🌇 Sunset: 07:52 PM
🌙 Waxing Crescent
🌑 Moon: 1% 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: Mist, temperature 17°C, humidity 100%.
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.