NWS: Cloudy, wet and seasonably cool this week

September 24, 2018

The first week of autumn will bring us some moderate rain and seasonably cool temperatures, the National Weather Service says.

Under a glowing full Harvest Moon, temperatures were in the upper 40s and low 50s across the region Sunday night and early Monday morning. Willimanic had 45 degrees; Bradley International Airport in Windsor Locks had 47 degrees; Torrington, 48; Danbury and New Milford, 49; Oxford, 50; Norwalk and Stamford 51; and Tween-New Haven airport and White Plains airport, near Greenwich, 53.

Based on the forecast, we won’t have clear night skies until Friday.

On Monday, skies will generally start off mostly sunny, especially in southern Connecticut. Clouds will increase later this afternoon as a frontal boundary to our south heads back north.

Breezy conditions are also expected Monday as easterly winds gust up to 30 mph, mainly for coastal areas.

Seasonably cool conditions will continue with highs only inthe middle to upper 60s.

The NWS says “light rain will move in from southwest to northeast tonight into Tuesday morning as the front continues its approach. The rain will increase in intensity on Tuesday, coming down moderate to locally heavy at times. The best chance for rain will be during the day on Tuesday. Unsettled conditions continue into Wednesday, with much warmer temperatures expected as the warm front lifts north of the region.”

Betwween 1 to 2 inches of rain is possible. The Hartford area, northeast Connecticut and central Massachusetts are in the 2 to 3 inch-range.

In its weather discussion, the NWS says later in ther week “a cold front eventually stalls south of the area with a series of weak low pressures expected to travel along the front, possibly bringing another chance of precipitation to the region on thursday night and Friday.”

It says a stronger area of high pressure builds into the area with a dry weekend expected.

Looking further ahead, the Climate Prediction Center says there is an ncreased chances of above-normal temperatures for October through December, with increased chances for wet conditions across much of the East Coast.

The forecast

Today: Partly sunny, with a high near 67. North wind 9 to 14 mph becoming east in the afternoon.

Tonight: A 30 percent chance of rain, mainly after 3am. Mostly cloudy, with a low around 57. East wind around 13 mph.

Tuesday Showers. High near 70. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90 percent. New precipitation amounts between three quarters and one inch possible.

Tuesday Night: Showers likely and possibly a thunderstorm. Patchy fog after midnight. Otherwise, cloudy, with a low around 68. South wind 7 to 10 mph. Chance of precipitation is 70 percent. New rainfall amounts between a quarter and half of an inch possible.

Wednesday: A 50 percent chance of showers and thunderstorms. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 78. South wind 7 to 11 mph.

Wednesday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 61. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday: Partly sunny, with a high near 70.

Thursday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 57.

Friday: A 30 percent chance of showers before noon. Partly sunny, with a high near 70.

Friday Night: Partly cloudy, with a low around 58.

Update hourly