Al Roker shared Friday on "Today" that he has been diagnosed with prostate cancer.

The beloved TV weatherman will undergo surgery for the condition.

Roker said it was discovered after a routine medical checkup in September.

According to CNN, 1 in 9 men will be diagnosed with the disease in their lifetime.

That risk increased to 1 in 7 for African American men.

Roker's co-anchors rallied around him and he said he's feeling optimistic about his cancer treatment.