Dense fog will make the Wednesday morning commute slow for metro-east residents.
But it should burn off by about 9 a.m., with sunshine and a high of 67, according to the National Weather Service.
That’s 13 degrees warmer than the average high temperature of 54 for March 11 in the St. Louis area. But it’s well short of the record high for this date, 84, set in 1972.
Overnight, the low will drop to 40 under mostly clear skies.
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There is a 20 percent chance of rain in the forecast during the daytime hours Thursday. The high will reach 62.
The chance of rain will increase to 60 percent Thursday night with a low of 47.
There is a 70 percent chance of showers Friday with a high of 61 and an overnight low of 47.