Overnight, skies will become mostly clear with lows falling to near 30 degrees by daybreak, and light southwest winds. This setup means calm conditions after a generally seasonal forecast on Monday.
As we move into Tuesday, the atmosphere will begin to change. A southwest wind will strengthen, bringing warmer air from the south. That means increasing cloud cover through the day, with highs climbing into the lower 50s, significantly above the average 39° for mid-January. The enhanced wind flow aloft will mix air masses, a key reason why clouds and milder temperatures develop.
Tuesday night, moisture returns ahead of an approaching weather system. So, we will likely see a few showers develop late or more likely into the overnight ahead of Wednesday daybreak. Because temperatures remain above freezing at the surface, precipitation will start as rain.
By Wednesday afternoon, that system will strengthen, causing rain to become likely, and with cooling aloft later in the day, there’s potential for a changeover to snow on Wednesday as colder air filters in. But little to no snow accumulation is expected.
Behind this system, much colder air settles in. Thursday’s high will drop into the mid-20s, and although skies will be partly sunny, the cold air mass will dominate. Friday and the weekend hold chances for additional snow showers with temperatures generally remaining below average for this time of year. At the moment, our computer models don't have a consensus on timing for the snow, so check back.
OVERNIGHT
Becoming clear
Low: 31
TUESDAY
Partly cloudy
Spotty rain late
High: 50
TUESDAY NIGHT
Light showers
Cloudy
Low: 40
WEDNESDAY
Rain to snow
Temps falling through the day
High: 43
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