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Jefferson County
Wednesday January 21st, 2026 :: 10:40 a.m. CST

Advisory

Winter Storm Watch until 12:00PM Sunday

* WHAT...Heavy snow possible. Total snow accumulations between 4 and 8 inches possible.

* WHERE...Portions of southern Illinois, southwest Indiana, and southeast Missouri.

* WHEN...From late Friday night through Sunday morning.

* IMPACTS...Travel could be very difficult.

* AFFECTED AREAS: JEFFERSON ... WAYNE ... EDWARDS ... WABASH ... PERRY ... FRANKLIN ... HAMILTON ... WHITE ... JACKSON ... WILLIAMSON ... SALINE ... GALLATIN ... GIBSON ... PIKE ... POSEY ... VANDERBURGH ... WARRICK ... SPENCER ... PERRY

Instructions:

Monitor the latest forecasts for updates on this situation.

Address/Location
Jefferson County
100 S 10th St
Mount Vernon, IL 62864

Contact
Emergency: 9-1-1
Non-emergencies: 618-244-8000

Alert Details

Severity:
Severe - Significant threat to life or property
Urgency:
Future - Responsive action SHOULD be taken in the near future
Certainty:
Possible (p <= ~50%)
Category:
Meteorological (inc. flood)
Event:
Winter Storm Watch

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