Thunderstorm Watch For Madison In Effect Until 10 p.m. Tuesday

A severe thunderstorm watch is in effect until 10 p.m. for New Haven county and most of Connecticut, the National Weather Service said.

In addition to New Haven county, Fairfield, Hartford, Middlesex, New London, Tolland, and Windham counties are included in the watch, the NWS said.

As of 2:45 p.m., the weather in Madison was sunny, with blue skies and moderate temperatures the high 70's and low 80's. In other words, it looked like a perfect day.

But the National Weather service said low pressure was moving across southern Canada and northern New England today and tonight, "dragging a cold front across the area this evening." That could bring unsettled weather with it.

"High pressure [which often brings stable, good weather] builds back in on Wednesday and moves offshore Wednesday night," the NWS said. "Low pressure and a cold front approaches on Thursday and slowly moves through the region late Thursday through Friday. High pressure then returns for the weekend and builds through the region into the start of the new week." 

The extended forecast for Madison and surrounding towns is as follows:

Tonight: A chance of showers and thunderstorms, mainly before 10pm. Some storms could be severe, with large hail and damaging winds. Mostly cloudy, then gradually becoming clear, with a low around 64. Southwest wind at 7 mph becoming north. Chance of precipitation is 30%.

Wednesday: Sunny, with a high near 83. Northwest wind around 9 mph.

Wednesday Night: Partly cloudy, with a low around 63. North wind around 5 mph.

Thursday: Mostly sunny, with a high near 81. Calm wind becoming south between 5 and 8 mph.

Thursday Night: A chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 68. South wind between 3 and 6 mph. Chance of precipitation is 30%.

Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%.

Friday Night: A chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

Saturday: Mostly sunny, with a high near 87.

Saturday Night: Partly cloudy, with a low around 71.

Sunday: Mostly sunny, with a high near 84.

Sunday Night: Mostly clear, with a low around 71.

Monday: Mostly sunny, with a high near 85.

Monday Night: Partly cloudy, with a low around 68.

Tuesday: Mostly sunny, with a high near 83.