From the TV 5 Forecast Center:
High pressure will be in control today, giving us dry and cold end to the work week. We’ll partly to mostly sunny skies this morning followed by increasing clouds later in the day as our next disturbance approaches. Temperatures will range from the upper single numbers to around 10° north and low to mid-teens elsewhere for highs this afternoon. Clouds will continue to increase across the state tonight with some snow showers and steadier, light snow developing late. The best chance for the steadier snow will be over Southern Penobscot County, the Midcoast, and Central and Coastal Hancock County. Temperatures will bottom out near or a few degrees below 0° north and in the low to mid-single numbers above 0° elsewhere.
The forecast for Saturday is a very tricky one. Low pressure passing through Northern New England tonight and Saturday morning will transfer its energy to a storm out over the ocean passing well south and east of New England. An inverted trough/”Norlun Trough” will hang back across Maine from the ocean storm. This trough will produce a localized band of steadier, heavier snowfall for some parts of the state Saturday. The key is where exactly does the trough set up? Areas in the vicinity of the trough will see some steadier, heavier snow during the day Saturday while areas away from the trough just see some snow showers. Right now it looks like the trough sets up from Hancock County to about the Greenville area. The heaviest snow is expected closer to the coast with areas just south of Bangor through the Midcoast and across Penobscot Bay into Central and Coastal Hancock County where 4”-8” are expected with locally higher amounts possible by later Saturday evening. Lighter amounts of about 2”-5” are expected for much of the rest of the state with the exception of southern and western Maine and much of Aroostook County where 1” or less is expected. Snowfall will taper off Saturday night as the trough exits the region. Keep an eye on future forecasts today and tonight in case the trough either moves or fizzles out as we’ll need to adjust snowfall accordingly. Drier and colder weather is expected Sunday. Temperatures on Sunday will only reach the single digits to around 10° for highs with some spots up north struggling to get above 0°. Winds will be gusty Sunday which could produce wind chills between -20 to -30° at times. High pressure will bring us a nice start to the work week with sunshine Monday and highs in the teens to around 20°.
Our next storm will arrive late Monday night and continue through Tuesday night. The storm is forecast to track to the west of the state, keeping us on the warmer side of the storm which has the potential to create a big mess around here. The airmass looks like it will be cold enough for precipitation to start as snow in most, if not all, locales Monday night/early Tuesday morning. Then as warmer air moves in, temperatures will climb into the mid-30s to mid-40s changing any snow to rain from south to north. Rain could be heavy at times Tuesday night.
Today: Partly to mostly sunny this morning then increasing clouds later this afternoon. Much colder with highs between 8°-18°. Northwest wind 5-10 MPH becoming west this afternoon.
Tonight: Mostly cloudy with snow showers possible late. Steadier snow possible especially over Southern Penobscot County, the Midcoast as well as Central and Coastal Hancock County. Very cold with lows between -7° to +9°. Light and variable wind.
Saturday: Mostly cloudy with snow showers likely. Steadier, heavier mainly over southern Penobscot County, the Midcoast and through Central and Coastal Hancock County. Cold with highs between 10°-22°. Winds will become north 5-15 MPH.
Sunday: A few morning snow showers possible then variably cloudy, breezy and frigid. Highs in the single numbers to around 10°. Wind chills as low as -20° to -30° possible at times.
Monday: Mostly sunny during the morning then increasing clouds during the afternoon. Highs in the mid-teens to around 20°.
Tuesday: Morning snow changing to rain. Rain could be heavy at times at night. Mild with highs climbing into the mid-30s to mid-40s.
WABI TV 5 & The CW