Fullerton, Pennsylvania Weather
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Weather Forecast for Fullerton, Pennsylvania : Lehigh County
Issued: 1:39 pm EDT Sep 4, 2025 Latitude: 40.6317638 Longitude: -75.4732384 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
40% chance of thunderstorms on This Afternoon 80% chance of thunderstorms on Tonight Mostly Sunny on Friday 80% chance of thunderstorms on Saturday 30% chance of on Sunday Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thursday
High: 84°F Low: 63°F High: 84°F High: 85°F High: 75°F High: 73°F High: 76°F High: 77°F High: 80°F
Low: 65°F Low: 56°F Low: 50°F Low: 48°F Low: 49°F Low: 51°F  
Thunderstorms Thunderstorms Mostly Sunny Thunderstorms Partly Sunny Sunny Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
QUAKERTOWN - (KUKT)
81°
Mostly Clear
as of 3:35 PM EDST
Rel. Humidity: 54%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 29.78 in.
Flight Rule: VFR
Wind Data
7 MPH
Gust: 16 MPH
170° South
Cloud Level(s): Few at 8500ft
40% chance of thunderstorms This Afternoon This Afternoon... A chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 84. South wind around 15 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
80% chance of thunderstorms Tonight Tonight... Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Low around 63. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 84. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 65. South wind around 5 mph.
80% chance of thunderstorms Saturday Saturday... A slight chance of showers, then showers and possibly a thunderstorm after 2pm. High near 85. Light south wind becoming southwest 5 to 10 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
70% chance of thunderstorms Saturday Night Saturday Night... Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Cloudy, with a low around 56. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
30% chance of Sunday Sunday... A chance of showers before 8am. Partly sunny, with a high near 75. Chance of precipitation is 30%.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 50.
Sunny on Monday Monday... Sunny, with a high near 73.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 48.
Sunny on Tuesday Tuesday... Sunny, with a high near 76.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 49.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 77.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 51.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 80.
Sun Almanac for Fullerton, Pennsylvania
Sunrise: 06:32 AM
Sunset: 7:29 PM
Civil Sunrise:06:05 AM
Civil Sunset: 7:57 PM
Nautical Sunrise: 05:31 AM
Nautical Sunset: 8:30 PM
Astro Sunrise: 04:57 AM
Astro Sunset: 9:04 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.