Rain, record low temperature expected Wednesday

Bring an umbrella along if you’re going to be outside Wednesday.

There is a 90 percent chance of showers in the National Weather Service forecast for the metro-east. And it seems that the rain could last all day.

Scattered showers are expected before 10 a.m., thunderstorms are possible from 10 a.m. until 4 p.m. and showers are likely after 4 p.m.

The high will be only 56. That’s more than 20 degrees below the average high temperature of 77 for May 20 in the St. Louis metropolitan area.

There is a 60 percent chance of showers Wednesday night, when the low will be 44. That would be a record low temperature for the date, breaking the previous mark of 47 set in 1997.

Skies will be mostly sunny Thursday when temperatures will rebound somewhat to a high of 65. It will be partly cloudy Thursday night with a low of 48.

On Friday the high will be 72 under mostly sunny skies. The low will be 54 Friday night with partly cloudy skies.

There is a good chance for rain over the Memorial Day weekend.

It will be partly sunny Saturday with a high of 75. But a 30 percent chance of showers will move into the area Saturday night when the low will be 61.

There is a 50 percent chance of showers and thunderstorms in the forecast for Sunday afternoon and Sunday night. The high will be 79 and the low will be 68.

There is a 60 percent chance of rain Monday when the high will be 78 and the low will be 65.

More detailed weather information

This story was originally published May 20, 2015 at 7:07 AM with the headline "Rain, record low temperature expected Wednesday."