Thunderstorms, Rain To Trigger Major Weather Changes This Weekend For CT

A cold front will move through Connecticut this afternoon, bringing the potential for thunderstorms, according to the National Weather Service.

After the front passes, it will feel more like fall, with much cooler temperatures.

The National Weather Service predicts scattered showers are possible today due to the cold front, which is expected to move through between 2 p.m. and 10 p.m.

“Brief, heavy rainfall and a rumble of thunder cannot be ruled out,” the National Weather Service said.

Most of the day today will be unseasonably warm, with high temperatures reaching into the low 80s. The National Weather Service predicts a 30 percent chance of showers and thunderstorms after 5 p.m. in southern Connecticut, and a 30 percent chance of showers after 4 p.m. in northern Connecticut.

WFSB predicts the cold front’s passage through the region later today could bring “showers, maybe even a downpour and a clap of thunder.”

WTNH’s forecast says, “Rain tonight could be briefly moderate to heavy, with a rumble of thunder possible too. This all comes with a cold front that will sweep through and bring an end to the humidity for the foreseeable future!”

Looking ahead

WFSB anticipates it will be much cooler and less humid starting this weekend, with temperatures closer to typical fall weather.

Saturday will be sunny with highs in the upper 60s, a nice day for fall outdoor fun. Sunday will start off partly sunny, with highs in the mid-60s, though there is a 20 to 30 percent chance of showers late Sunday, according to the National Weather Service.

“Saturday is the pick of the weekend with bright sunshine and comfortable temps! Sunday starts chilly with some sunshine before clouds increase midday/afternoon, followed by showers late in the evening,” WTNH said.

WFSB reports, “while the daylight hours are expected to stay dry (Sunday), isolated showers are possible late, say after 6 p.m.”

The upcoming work week will continue the cooler trend, with daytime highs reaching into the 60s through Thursday, according to the National Weather Service.

WFSB predicts there may be the first frost of the season in inland Connecticut on Wednesday morning.

Here are the forecast details for southern Connecticut via the National Weather Service:

Today: A 30 percent chance of showers and thunderstorms after 5 p.m. Partly sunny, with a high near 80. Southwest wind 8 to 11 mph.

Tonight: A chance of showers and thunderstorms before 11 p.m., then a slight chance of showers between 11 p.m. and 2 a.m. Cloudy, then gradually becoming partly cloudy, with a low around 57. Northwest wind around 7 mph. Chance of precipitation is 30%.

Saturday: Sunny, with a high near 69. North wind 6 to 9 mph.

Saturday Night: Mostly clear, with a low around 52. East wind 3 to 5 mph.

Sunday: A 30 percent chance of showers after 2 p.m. Partly sunny, with a high near 64. East wind 8 to 11 mph.

Sunday Night: A 30 percent chance of showers before 8 p.m. Mostly cloudy, with a low around 54.

Monday: Mostly sunny, with a high near 68.

Monday Night: Mostly clear, with a low around 45.

Tuesday: Sunny, with a high near 60.

Tuesday Night: Mostly clear, with a low around 43.

Wednesday: Sunny, with a high near 60.

Wednesday Night: Mostly clear, with a low around 50.

Thursday: Sunny, with a high near 65.

Here are the forecast details for northern Connecticut via the National Weather Service:

Today: A chance of showers, mainly after 4 p.m. Partly sunny, with a high near 82. Southwest wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: A chance of showers, mainly before 8 p.m. Cloudy, then gradual clearing toward daybreak, with a low around 54. Northwest wind 6 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Saturday: Sunny, with a high near 70. North wind 6 to 8 mph.

Saturday Night: Mostly clear, with a low around 45. Light northeast wind.

Sunday: Mostly sunny, with a high near 66. Light and variable wind becoming southeast 5 to 7 mph in the morning.

Sunday Night: A slight chance of showers between 11 p.m. and midnight. Mostly cloudy, with a low around 49. Light and variable wind. Chance of precipitation is 20%.

Monday: Mostly sunny, with a high near 67. Light southwest wind becoming northwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

Monday Night: Clear, with a low around 42. Northwest wind 9 to 13 mph.

Tuesday: Sunny, with a high near 59. Northwest wind 11 to 14 mph.

Tuesday Night: Clear, with a low around 38. West wind around 5 mph becoming calm in the evening.

Wednesday: Sunny, with a high near 62. Calm wind becoming southwest 5 to 8 mph in the afternoon.

Wednesday Night: Mostly clear, with a low around 43. South wind 3 to 7 mph.

Thursday: Sunny, with a high near 67. Light south wind becoming southwest 5 to 10 mph in the morning.