Hazardous weather is on the horizon for southwestern Connecticut this afternoon, the National Weather Service warns.

Storms with heavy rain, gusty winds and thunder and lightning are likely after 2 p.m. today and overnight, the NWS says in a "hazardous weather outlook" issued today.

The storms also could trigger flash flooding, the weather service adds in a warning in effect from noon today through tomorrow afternoon.

Skies today will be mostly cloudy, with a daytime high temperature about 80 degrees and an east wind 3 to 8 mph. Chance of daytime precipitation is 60 percent.

Tonight, there is an 80 percent chance of showers and thunderstorms, as well as early-morning tomorrow. Again, the NWS warns that some of the storms could be severe. The overnight temperature is expected to dip to a low of about 70 degrees.

Tomorrow, showers and thunderstorms are likely, with a high temperature in the upper-70s under cloudy skies. Odds of daytime precipitation are 70 percent.

More showers and thunderstorms are expected overnight tomorrow as the temperature registers a low in the upper-60s. Chance of nighttime precipitation is about 60 percent.

On Saturday, there is a 60 percent chance of showers and thunderstorms before noon, with the odds deceasing later in the day. Skies are expected to be mostly cloudy, with a high temperature in the low-80s. There is a 40 percent chance of precipitation Saturday night with a low temperature in the mid-60s.

More unsettled weather is possible Sunday, the NWS says, rating the odds at about 50-50. The day will be cloudy and temperatures will rise to a high about 80 degrees.

The outlook for Monday, the weather service says, is very similar to the preceding: possible storms, cloudy and temperatures about 80 degrees.