Williamstown, Pennsylvania Weather
Issued: 2:51 am EST Jan 23, 2026 Latitude: 40.5800868 Longitude: -76.617742 View on Google Maps
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| Mostly Sunny |
Mostly Clear |
Partly Sunny |
Snow & Sleet |
Snow |
Mostly Sunny |
Mostly Sunny |
Partly Sunny |
Current Conditions at
MUIR AAF - (KMUI)
32°
Clear
as of 3:55 AM EST
Rel. Humidity: 31%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
SELINSGROVE - (KSEG)
27°
Clear
as of 3:53 AM EST
Rel. Humidity: 42%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
MIDDLETWN/HARRISB - (KMDT)
23°
Mostly Clear
as of 3:56 AM EST
Rel. Humidity: 57%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
3 MPH
320° Northwest
Cloud Level(s): Few at 20000ft
Current Conditions at
HARRISBURG - (KCXY)
23°
Clear
as of 3:56 AM EST
Rel. Humidity: 62%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Cloud Level(s): Clear
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Today... Mostly sunny, with a high near 29. West wind 9 to 14 mph, with gusts as high as 32 mph. |
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Tonight... Mostly clear, with a low around 3. Wind chill values as low as -10. Northwest wind 10 to 16 mph, with gusts as high as 31 mph. |
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Saturday... Partly sunny, with a high near 16. Wind chill values as low as -10. Northwest wind 5 to 9 mph, with gusts as high as 21 mph. |
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Saturday Night... Snow, mainly after 1am. The snow could be heavy at times. Low around 10. Wind chill values as low as zero. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible. |
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Sunday... Snow before 4pm, then snow, possibly mixed with sleet. The snow could be heavy at times. High near 20. East wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 7 to 11 inches possible. |
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Sunday Night... Snow, possibly mixed with sleet, becoming all snow after 7pm. The snow could be heavy at times. Low around 15. Chance of precipitation is 90%. New snow and sleet accumulation of 3 to 7 inches possible. |
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Monday... A chance of snow before 1pm. Mostly cloudy, with a high near 24. Chance of precipitation is 40%. |
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Monday Night... Partly cloudy, with a low around 2. |
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Tuesday... Mostly sunny, with a high near 19. |
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Tuesday Night... Partly cloudy, with a low around 3. |
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Wednesday... Mostly sunny, with a high near 21. |
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Wednesday Night... Mostly cloudy, with a low around 3. |
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Thursday... Partly sunny, with a high near 18. |
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Current Radar Image
Sun Almanac for Williamstown, Pennsylvania
Sunrise: 07:23 AM
Sunset: 5:13 PM
Civil Sunrise:06:54 AM
Civil Sunset: 5:43 PM
Nautical Sunrise: 06:21 AM
Nautical Sunset: 6:16 PM
Astro Sunrise: 05:48 AM
Astro Sunset: 6:48 PM
Pennsylvania's Current Temperatures
Pennsylvania's Satellite Image
Pennsylvania's Current Wind Direction
| National Summary |
of upper and lower values of current conditions amongst 6394 locations
in the contiguous United States |
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High
Temp |
77° |
Keathley C 875, Louisiana
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Low
Temp |
-31° |
Park Rapids, Minnesota
and 3 other locations
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Wind
Speed |
28mph |
Copper Harbor, Michigan
and 1 other location
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Wind
Gust |
41mph |
Dunkirk, New York
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Wind
Chill |
-56° |
Grand Marais, Minnesota
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High
Pressure |
30.75Hg |
Mitchell, South Dakota
and 3 other locations
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Low
Pressure |
29.55Hg |
Midlothian, Texas
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| # Locations Reporting Snow |
97 |
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| # Locations Reporting Rain |
30 |
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| # Locations Reporting Fog |
49 |
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| Average Temperature in the Contiguous USA |
26° |
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Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the
National Weather Service for official information.
