State authorities have issued an “Air Quality Action Day” for southern Connecticut. a day when temperatures are expected to reach 90 degrees in Darien and we may see an isolated shower or thunderstorm.
“An Air Quality Action Day means that ozone within the region may approach or exceed unhealthy standards,” according to the National Weather Service.
The Weather Underground website says this about Ozone Action Days (and has a list of things you can do to reduce ozone emissions): “An Ozone Action Day is declared when weather conditions are likely to combine with pollution emissions to form high levels of ozone near the ground that may cause harmful health effects.”
Here’s the National Weather Service’s Darien-specific forecast for the week (as of the 7:56 a.m. update):
Monday
Isolated showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 90. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 20 percent.
Tonight
Isolated showers and thunderstorms. Partly cloudy, with a low around 72. South wind 5 to 9 mph. Chance of precipitation is 20%.
Tuesday
Isolated showers and thunderstorms before 2pm. Mostly sunny, with a high near 86. Light southwest wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 20 percent.
Tuesday Night
A slight chance of showers and thunderstorms between 9pm and 1am. Mostly cloudy, with a low around 72. South wind 5 to 8 mph. Chance of precipitation is 20 percent.
Wednesday
A slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. South wind 3 to 7 mph. Chance of precipitation is 20 percent.
Wednesday Night
A chance of showers and thunderstorms, mainly after 7pm. Cloudy, with a low around 72. Chance of precipitation is 30 percent.
Thursday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40 percent.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 50 percent.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30 percent.
Saturday
Partly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Partly sunny, with a high near 81.
