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Cold temps set in early this week,
but transient ups & downs continue
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East Central PA Forecast

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Basic CMYK

Our East Central PA forecast region includes the Lehigh Valley, Hamburg, Reading, Lebanon, Harrisburg, Pottsville & surrounding areas. Forecasts are updated daily M-F, and Saturday that covers both weekend days – never on Sundays.

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Much colder through midweek, then moderating late week…then another weekend storm…

The week starts out mostly sunny and cold, with highs not getting above freezing on Monday. Under clear skies Monday night, lows will drop into the low to mid teens.

The next several days through midweek are cold and mostly sunny as a trough and high pressure remains over the region. Partly cloudy skies follow on Thursday with highs moderating to the lower 40s, and mid 40s on Friday also under partly cloudy skies to start, but then clouds will increase late. Another storm system, this time what looks to be a cutoff upper level low and associated surface low, will bring the possibility of a wintry mix Friday night and Saturday AM that may change to rain, but this is a highly uncertain forecast as is usually the case with cut-off lows. Good signal for a storm, but not much confidence in possible precipitation types at this point. We will monitor throughout the week and adjust as needed.

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Forecaster:  Martrich 20 January 0300z

Daily climatology for Allentown, PA

Average highAverage lowRecord high temp (year)Record low temp (year)
36°F19°F56°F (1951)-6°F (1994)