If you are feeling under the weather Monday, there is a good reason for that.

The mountain cedar pollen count is expected to spike to the highest of the season Monday, according to Sylvana Research.

The mountain cedar count is 31,800 grains per cubic meter of air, which puts it in the “very heavy” category.

Meanwhile, the molds will be light, with a count of 260 grains per cubic meter of air.