No Watches or Warnings for Williamsport
Change location by the zip code or city,state: or search for other weather forecast locations in Pennsylvania by name.
Weather Conditions for Williamsport, Pennsylvania : Northampton County
Issued: 4:10 pm EDT Oct 10, 2026 Latitude: 40.6812101 Longitude: -75.2012873 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Columbus Day Tuesday Wednesday Thursday Friday Saturday
Mostly Cloudy on Tonight 100% chance of thunderstorms on Sunday Partly Sunny on Columbus Day Mostly Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thursday 50% chance of rain on Friday Partly Sunny on Saturday
Low: 52°F High: 63°F High: 72°F High: 72°F High: 73°F High: 65°F High: 64°F High: 59°F
Low: 58°F Low: 55°F Low: 60°F Low: 51°F Low: 50°F Low: 50°F  
Mostly Cloudy Thunderstorms Partly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Rain Partly Sunny

Hourly forecast

Williamsport, pa · Next 24 hours · Eastern time (EST/EDT)

Loading hourly forecast…

Current Conditions at
ALLENTOWN - (KABE)
66°
Clear
as of 6:51 PM EDST
Rel. Humidity: 48%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.40 in.
Flight Rule: VFR
Wind Data
3 MPH
110° East
Cloud Level(s): Clear
Current Conditions at
QUAKERTOWN - (KUKT)
63°
Clear
as of 6:55 PM EDST
Rel. Humidity: 63%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 30.41 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
DOYLESTOWN - (KDYL)
63°
Clear
as of 6:54 PM EDST
Rel. Humidity: 55%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.40 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
POCONO MNTS MUNICIPAL AP - (KMPO)
54°
Clear
as of 6:53 PM EDST
Rel. Humidity: 71%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 30.43 in.
Flight Rule: VFR
Wind Data
3 MPH
100° East
Cloud Level(s): Clear
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 52. Calm wind becoming east around 5 mph.

100% chance of thunderstorms Sunday Sunday... Rain, with thunderstorms also possible after 5pm. High near 63. East wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

80% chance of thunderstorms Sunday Night Sunday Night... Rain and thunderstorms before midnight, then a chance of showers and thunderstorms between midnight and 3am. Low around 58. Northeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Partly Sunny on Columbus Day Columbus Day... Partly sunny, with a high near 72. North wind around 5 mph.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 55. Northwest wind around 5 mph becoming calm.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 72.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 60.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 73.

Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 51.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 65.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 50.

50% chance of rain Friday Friday... A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.

40% chance of rain Friday Night Friday Night... A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 59.

Pennsylvania's Warnings, Watches, and AdvisoriesPennsylvania's Watches, Warnings, and Advisories

Sun Almanac for Williamsport, Pennsylvania
Astronomical Sunrise 05:36 AM?Astronomical sunrise occurs when the Sun is 18° below the horizon and the sky begins to brighten from a completly darkened state.
Nautical Sunrise 06:08 AM?Nautical sunrise (or nautical dawn) is the precise moment when the sun's center is 12° below the horizon in the morning. It marks the beginning of nautical twilight, allowing pilots/mariners to see the horizon.
Civil Sunrise 06:40 AM?Civil sunrise is the moment in the morning when the sun's center is 6° below the horizon. It marks the start of morning civil twilight, providing enough natural light for most, outdoor activities without artificial lighting. It typically occurs roughly 20-30 minutes before actual sunrise.
Sunrise 07:07 AM?Sunrise (or sunup) is the moment when the upper rim of the Sun appears on the horizon in the morning. It marks the end of the twilight phase, often accompanied by distinct atmospheric colors.

Daylight: 11 Hours 22 Minutes?Daylight hours are the period of time between local sunrise and sunset, representing the daily portion of sunlight. These hours change in length based on season, Earth's tilt, and latitude.

Sunset 6:29 PM?The sunset is defined in astronomy as the moment the upper limb of the Sun disappears below the horizon. It marks the end of daylight and is often accompanied by distinct atmospheric colors. It also signals the beginning of twilight.
Civil Sunset 6:56 PM?Civil sunset (or evening civil twilight) occurs when the center of the sun is 6° below the horizon, marking the end of the brightest twilight phase. It typically occurs roughly 20-30 minutes after sunset, providing enough light for most outdoor activities to continue without artificial light.
Nautical Sunset 7:28 PM?Nautical sunset occurs when the sun's center is 12° below the horizon, marking the end of nautical twilight. This phase, following civil twilight, allows the horizon to remain visible, enabling mariners to take accurate star sights for navigation. The sky is dark, but some ambient light remains
Astronomical Sunset 7:59 PM?Astronomical sunrise occurs when the Sun drops to 18° below the horizon. This causes the sky to enter a completly darkened state.

Civil Rise to Set: 12 Hours 16 Minutes
Nautical Rise to Set: 13 Hours 20 Minutes
Astro Rise to Set: 14 Hours 23 Minutes

Click for yearly Sun Almanac for Williamsport
Moon Almanac for Williamsport, Pennsylvania
Moon Phase: New Moon
Moon Illumination: 0%
Moon Age: 0.31 Days
Moon is currently below the horizon
Distance from Moon to Earth: 242,500 miles
Upcoming Lunar Events for
Williamsport:
Next EventEvent TimeIllum

Moonrise:08:13 am Sun0.8%
High Moon:01:29 pm Sun1.2%
Moonset:06:36 pm Sun1.8%
New Moon: Thu Sep 10
First Quarter: Fri Sep 18
Full Moon: Sat Sep 26
Last Quarter: Sat Oct 3
New Moon: Sat Oct 10
Click for Monthly Moon Almanac