Fullerton, Pennsylvania Weather
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Weather Forecast for Fullerton, Pennsylvania : Lehigh County
Issued: 1:47 pm EDT Jun 21, 2025 Latitude: 40.6317638 Longitude: -75.4732384 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Cloudy on Tonight Mostly Sunny on Sunday Sunny on Monday Sunny on Tuesday 30% chance of thunderstorms on Wednesday 50% chance of thunderstorms on Thursday 50% chance of on Friday 50% chance of thunderstorms on Saturday
Low: 70°F High: 95°F High: 99°F High: 99°F High: 95°F High: 90°F High: 85°F High: 84°F
Low: 75°F Low: 77°F Low: 76°F Low: 72°F Low: 69°F Low: 68°F  
Cloudy Mostly Sunny Sunny Sunny Thunderstorms Thunderstorms Partly Sunny Thunderstorms
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Current Conditions at
ALLENTOWN - (KABE)
86°
Feels like 87°F
Mostly Clear
as of 2:51 PM EDST
Rel. Humidity: 48%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
13 MPH
Gust: 20 MPH
250° West
Cloud Level(s): Few at 5000ft
Current Conditions at
QUAKERTOWN - (KUKT)
88°
Feels like 91°F
Clear
as of 3:35 PM EDST
Rel. Humidity: 52%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
7 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
POTTSTOWN - (KPTW)
86°
Feels like 88°F
Partly Cloudy
as of 2:54 PM EDST
Rel. Humidity: 51%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
7 MPH
240° Southwest
Cloud Level(s): Scattered at 5500ft, Scattered at 7500ft
Current Conditions at
DOYLESTOWN - (KDYL)
90°
Clear
as of 2:54 PM EDST
Rel. Humidity: 40%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
8 MPH
250° West
Cloud Level(s): Clear
Cloudy on Tonight Tonight... Partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 95. Heat index values as high as 103. West wind 5 to 15 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 75. West wind around 5 mph becoming calm in the evening.
Sunny on Monday Monday... Sunny and hot, with a high near 99. Heat index values as high as 110. Calm wind becoming west around 5 mph in the afternoon.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 77. Calm wind.
Sunny on Tuesday Tuesday... Sunny and hot, with a high near 99.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 76.
30% chance of thunderstorms Wednesday Wednesday... A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 30%.
30% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
50% chance of thunderstorms Thursday Thursday... A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 50%.
40% chance of thunderstorms Thursday Night Thursday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
50% chance of Friday Friday... A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 50%.
50% chance of rain Friday Night Friday Night... A chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
50% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Current Radar Image


Sun Almanac for Fullerton, Pennsylvania
Sunrise: 05:31 AM
Sunset: 8:36 PM
Civil Sunrise:04:58 AM
Civil Sunset: 9:10 PM
Nautical Sunrise: 04:15 AM
Nautical Sunset: 9:52 PM
Astro Sunrise: 03:25 AM
Astro Sunset: 10:42 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.