Flood Watch Extended Through Thursday Evening for Mercer, Venango, Forest, Clarion, Jefferson PA
The Flood Watch for Mercer, Venango, Forest, Clarion, and Jefferson counties now runs through Thursday evening, later than originally issued.
Severe Weather in Clarion County, Pennsylvania
Every severe weather report published for Clarion County, Pennsylvania, newest first.
Heat Advisory in Effect Until 8 PM EDT Wednesday for Parts of Ohio, Pennsylvania, and West Virginia
The National Weather Service has issued a Heat Advisory that runs from 8 AM to 8 PM EDT Wednesday, September 2, 2026.
Dense Fog Advisory in Effect for Harrison, Jefferson OH, Guernsey Until 9 AM EDT Friday
The National Weather Service has issued a Dense Fog Advisory for portions of Ohio, Pennsylvania, and West Virginia, including Harrison, Jefferson OH, and Guernsey, with visibility of one quarter mile or less.