DAYS 1-5 (JANUARY 12-16)
A generally quiet pattern will be with us over this 5-day forecast period, but that doesn’t mean there are not things to discuss – just no big storm systems. Today, a northerly air flow switches to westerly as low pressure to our east moves away and a ridge of high pressure noses in from the southwest. Initially, the northerly flow holds clouds in across Cape Cod and I can’t rule out a couple snow showers over the Outer Cape Cod region through midday, otherwise besides some early morning wave clouds near the Monadnocks, and maybe a few fair weather clouds passing by anywhere during the day, we’ll have sunshine and tolerable temps with not too much wind. The upper flow over the coming several days will be generally westerly, with 2 short-wave troughs moving through (Monday-Tuesday and again Thursday). A surface low associated with the first one will send a warm front through our region late Monday and a cold front later Tuesday. This system will bring some varying amounts of clouds to the region, but only a very low chance of any snow shower activity. Similarly, Thursday’s system will be largely a “dry” passage with only a low snow shower risk. So while several “things” happen the next several days, it’s overall a quiet pattern in terms of sensible weather.
TODAY: Mostly sunny. Highs 30-37. Wind W 5-15 MPH.
TONIGHT: Mostly clear. Lows 15-22. Wind W 5-15 MPH.
MONDAY: Partly sunny. Highs 32-39. Wind W 5-15 MPH.
MONDAY NIGHT / TUESDAY: Variably cloudy. Slight chance of snow showers. Lows 16-23. Highs 29-36. Wind W increasing to 10-20 MPH, higher gusts.
TUESDAY NIGHT: Clearing. Lows 15-22. Wind NW 10-20 MPH.
WEDNESDAY: Sunny to partly cloudy. Highs 28-35. Wind NW 10-20 MPH.
WEDNESDAY NIGHT: Partly cloudy. Lows 16-23. Wind W 5-15 MPH.
THURSDAY: Partly cloudy. A passing snow flurry possible. Highs 25-32. Wind NW 10-20 MPH, higher gusts.
DAYS 6-10 (JANUARY 17-21)
Some changes are ahead for this period as we bring high pressure through the region early in the period then offshore. A more moist southerly air flow precedes a cold front around January 18 that delivers a colder air mass by January 19 and then sets up the opportunity for additional storminess with snow/mix potential January 20-21. There’s a long way to go before this and plenty of time to watch and analyze trends for these unsettled chances.
DAYS 11-15 (JANUARY 22-26)
Medium range indications are for more cold weather and a mid period snow chance.