Heat Advisory in Jefferson County, Missouri
Issued by the National Weather Service and archived by Claims Pages
8/30/2026 11:03:00 PM (UTC)
Urgency: Expected
Severity: Moderate
Certainty: Likely
8/30/2026 11:03:00 PM until 8/31/2026 2:15:00 PM
* WHAT...Heat index values up to 105 expected.
* WHERE...Jefferson MO County.
* WHEN...From noon Monday to 8 PM CDT Friday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.