National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Current conditions at

Allentown, Lehigh Valley International Airport (KABE)

Lat: 40.65°NLon: 75.45°WElev: 384ft.

Fair

38°F

3°C

Humidity 46%
Wind Speed W 17 mph
Barometer 30.17 in (1021.9 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 12 Jan 11:51 am EST
Extended Forecast for

Fullerton PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 43. West wind 10 to 15 mph.

    High: 43 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 28. Southwest wind around 5 mph.

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46. Southwest wind around 5 mph.

    High: 46 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. South wind around 5 mph.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Cloudy, with a high near 49. Southwest wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 1am. Cloudy, with a low around 33. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 33 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.

    High: 39 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 1am, then a chance of snow. Mostly cloudy, with a low around 20. Chance of precipitation is 40%.

    Low: 20 °F

    Chance
    Rain/Snow

  • Friday

    Friday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 43. West wind 10 to 15 mph.
Tonight
Mostly clear, with a low around 28. Southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 46. Southwest wind around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 35. South wind around 5 mph.
Wednesday
A chance of rain. Cloudy, with a high near 49. Southwest wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely, mainly after 1am. Cloudy, with a low around 33. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain likely before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow before 1am, then a chance of snow. Mostly cloudy, with a low around 20. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 19.
Saturday
Partly sunny, with a high near 38.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
Partly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fullerton PA
 40.64°N 75.46°W (Elev. 299 ft)
Last Update:
4:11 am EST Jan 12, 2026
Forecast Valid:
12pm EST Jan 12, 2026-6pm EST Jan 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation