Excessive Heat — Jefferson, Missouri

2025-08-16 to 2025-08-19 · Jefferson, Missouri

Event narrative

High temperatures in the upper 90s combined with high humidity to produce heat index values over 105 degrees for several days. The heat index peaked near 110 degrees.

Wider weather episode

The hottest temperatures of the year were accompanied by high humidity, combining to produce several days of heat index values over 105 degrees.

Source: NOAA Storm Events Database, event_id 1281000. Narrative written by the NWS forecast office that issued the report.