Forecast discussion: At this time, a low pressure system just passing on the U.S. border near Vermont will give us some low level clouds this evening. There is not a lot of moisture with the associated cold front, but a passing shower or flurry is possible during the overnight hours. The cold front will pass Saturday afternoon, as our winds shift to the southwest for a brief period of time. Also, our temperatures will remain below normal for this time of the year. Our high temperatures this weekend will only reach the lower 40’s.
Once the cold front moves out to sea by Saturday night, a high pressure ridge will move over us, bringing some drier air. This will allow for sunny skies on St. Patrick’s Day, but a strong breeze will make it feel a little colder. The dry skies will last until Monday morning, when a developing low pressure system down in the south central U.S. begins to move towards the Northeast U.S.
We will begin to see some showers from this system around the evening commute Monday evening. As we move through the overnight hours, there may be enough cold air to turn the precipitation to some sleet or freezing rain. Northwest Rhode Island may even see some wet snow, making a bad wintry mix. By Tuesday morning, the precipitation will become heavier, but it will become all rain. However, there is the potential of seeing an inch or even two of rainfall, so we may see some street or river flooding.
The precipitation will taper off and end by Tuesday evening. A strong high pressure system coming out of eastern Canada will give us partly to mostly sunny skies by midweek. But, a new low pressure system may bring another round of precipitation by next Saturday.
72 hour forecast:
Tonight: Partly to mostly cloudy with a passing flurry or sprinkle with a low of 29.
Saturday: Partly sunny skies by the afternoon with a high of 42. Winds will start from the northwest before shifting to the southwest at 6-9 mph in the afternoon.
Saturday night: Clear skies with a low of 26. Winds will return to the northwest at 4-7 mph.
Sunday: Sunny and breezy with a high of 42.
Sunday night: Partly cloudy and a low of 23.
Monday: Mostly sunny up until mid-morning, with increasing clouds and showers by the evening commute. We will see a high of 39.
Monday night: Showers arriving before midnight, and could mix with sleet and freezing rain. We will see a low of 31.
Tuesday: Sleet/freezing rain turning back to rain by the late morning, before ending in the evening. Highs 41-44, lows 29-32.
Wednesday: Partly to mostly sunny. Highs 39-42, lows 26-29.
Thursday: Partly to mostly sunny. Highs 40-43, lows 27-30.
Friday: Mostly sunny into the early afternoon, with increasing clouds. Highs 41-44, lows 30-33.