This weekend starts of with a storm system passing well southeast of NYC Friday into Saturday. The periphery of this low offshore, a weakening secondary low tracking from the Great Lakes, as well as a weak inverted trough pivoting through will still give us a chance for rain later today and overnight into Saturday. Behind this storm, temperatures will cool to seasonable levels in the mid-40s. However, high pressure will build and quickly move southeast. The flow will turn southerly and bring a big warm up to start week in the 60s.

Rest of today – clouds have already worked their way into the are ahead of a secondary low moving east. High temperatures today should peak in the upper-40s. Rain chances increase in the afternoon as bands of precipitation develop and start pivoting around a rapidly strengthening offshore low. The secondary low will transfer energy to this offshore low and eventually be absorbed. A brief period of wet snow could happen overnight, but no accumulation is expected. Overnight lows should be around the mid-30s.

Saturday – clouds should clear with high pressure starting to build in. Temperatures won’t be that much cooler behind this storm, rebounding into the mid-40s, but it will be cooler than we’ve been used to this week. The pressure gradient between the incoming high pressure and departing offshore storm should allow for some brisk northerly winds. As the high pressure continues moving overhead, winds should calm and allow for a mostly clear overnight. Overnight lows will be in the low-30s as a result of good radiational cooling from these conditions.

Sunday – by this time, the high pressure should continue to track southeast. In response, winds will being shifting to the southwest, bringing a much warmer air mass back to the region. High temperatures will likely respond by shooting back into the upper-50s. Overnight lows will be considerably warmer, in the low-40s. We jump ahead an hour as daylight saving time starts.

Monday – the prolonged period of southerly flow as the high pressure keeps moving off to the southeast with plenty of sun at an increasing angle should result in high temperatures well into the 60s, mid-upper 60s possibly! Overnight lows will continue warming into the mid-40s.