A Sunday soaker

Seasonably chilly for the start of the work week

TODAY: Mild with rain, heavy at times; areas of fog; possible flooding. High: 52

TONIGHT: Rain and drizzle in the evening; otherwise, cloudy. Low: 37

MONDAY: Cooler with increasing sunshine. High: 44


The rain that started yesterday afternoon will continue throughout most of the day today. A slow moving frontal boundary that was to our northwest yesterday continues to inch towards us, bringing a moisture rich southerly flow out ahead of it. That warm and moist air is overriding the front, bringing a large swath of rain extending from the Gulf of Mexico all the way into Canada. Fog will also be a concern later tonight, so take extra precaution if you are traveling in low visibilities by driving slower, keeping a safe distance from the car ahead of you, and keeping your lights on low beam.  A center of low pressure will also form along this front today, which will continue to bring steady rain throughout most of the day today. The National Weather Service has put the Lehigh Valley and areas south and east under a flood watch due to the high expected rainfall totals, which look like 1"-2" for most of the region, but locally higher totals farther southeast. Some poor drainage/low-lying/urban flooding will be possible along with the potential for some flooding along smaller creeks, streams, and rivers. A strong southerly low level flow will cause temperatures to get quite mild, reaching into the 50s and even some 60s in the southeastern parts of the area. However, areas north of the Lehigh Valley likely will not get out of the 40s.

By later this evening and tonight, the front will finally push off the coast, allowing for cooler and drier air to move in behind it. The air is not too cold by February standards, and we will drop into the mid to upper 30s tonight and the clouds start to clear out. Tomorrow will be cooler but still above the average for this time of year, getting into the mid 40s with increasing sunshine. It will also be a bit breezy, with a northwest wind occasionally gusting to around 20 mph. 

Tuesday will continue to cool off, with temperatures not getting out of the upper 30s with more clouds than we will see on Monday. However, expect a mid week warm-up for Valentine's Day on Wednesday, as the flow switches to a more southerly direction. Highs will climb to near 50 on Wednesday with periods of clouds and sun. Temperatures will get even higher for Thursday, although scattered showers are expected throughout the day. This is all ahead of our next cold front that will move through late Thursday or early Friday, bringing a chance for wet and icy weather early Friday and temperatures back to around average headed into the weekend. At this point, next weekend looks dry as high pressure will move into the region. 

Have a great rest of the weekend, and stay dry today!

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Historical Averages

High Low
Current 49°F 27°F
Average 50°F 30°F
Record 77°F March 18, 1927 5°F March 18, 1967