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Fullerton, Pennsylvania Weather Forecast
Fullerton, Pennsylvania Weather
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Weather Forecast for Fullerton, Pennsylvania : Lehigh County
Issued: 4:11 am EST Jan 23, 2026 Latitude: 40.6317638 Longitude: -75.4732384 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Sunny on Today Mostly Clear on Tonight Partly Sunny on Saturday 100% chance of snow on Sunday 50% chance of snow on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday Partly Sunny on Thursday
High: 31°F Low: 5 °F High: 18°F High: 19°F High: 26°F High: 19°F High: 22°F High: 20°F
Low: 12°F Low: 17°F Low: 4°F Low: 3°F Low: 3°F  
Mostly Sunny Mostly Clear Partly Sunny Snow Snow Mostly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
ALLENTOWN - (KABE)
19°
Clear
as of 6:51 AM EST
Rel. Humidity: 57%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
6 MPH
230° Southwest
Cloud Level(s): Clear
Current Conditions at
QUAKERTOWN - (KUKT)
21°
Clear
as of 7:15 AM EST
Rel. Humidity: 62%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
POTTSTOWN - (KPTW)
21°
Clear
as of 6:54 AM EST
Rel. Humidity: 57%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
DOYLESTOWN - (KDYL)
25°
Clear
as of 6:54 AM EST
Rel. Humidity: 49%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
3 MPH
170° South
Cloud Level(s): Clear
Mostly Sunny on Today Today... Mostly sunny, with a high near 31. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 5. Wind chill values as low as -7. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 18. Wind chill values as low as -7. Northwest wind 5 to 10 mph.

70% chance of snow Saturday Night Saturday Night... Snow likely after 1am. Cloudy, with a low around 12. Northeast wind around 5 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

100% chance of snow Sunday Sunday... Snow. The snow could be heavy at times. High near 19. East wind 10 to 15 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

100% chance of snow Sunday Night Sunday Night... Snow. Low around 17. Chance of precipitation is 100%.

50% chance of snow Monday Monday... A chance of snow. Mostly cloudy, with a high near 26. Chance of precipitation is 50%.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 4.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 19.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 3.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 22.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 3.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 20.

Current Radar Image


Sun Almanac for Fullerton, Pennsylvania
Sunrise: 07:19 AM
Sunset: 5:09 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:38 PM
Nautical Sunrise: 06:16 AM
Nautical Sunset: 6:11 PM
Astro Sunrise: 05:44 AM
Astro Sunset: 6:44 PM
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.