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Frost Advisory — Knox, IL, Stark, IL, Peoria, IL, Marshall, IL, Woodford, IL, Fulton, IL, Tazewell, IL, Schuyler, IL, Mason, IL, Logan, IL, Cass, IL, Menard, IL, Scott, IL, Morgan, IL, Sangamon, IL, Christian, IL
Issued
1:00 AM CDT · Sat, Oct 17 2026
Expires
9:00 AM CDT · Sat, Oct 17 2026
Issuing Office
NWS KILX

Affected Areas

Knox, IL Stark, IL Peoria, IL Marshall, IL Woodford, IL Fulton, IL Tazewell, IL Schuyler, IL Mason, IL Logan, IL Cass, IL Menard, IL Scott, IL Morgan, IL Sangamon, IL Christian, IL

Official Bulletin

* WHAT...Clear skies and light winds will allow temperatures to drop
to between 33 and 35 degrees tonight. This will result in frost
formation.

* WHERE...Portions of central and west central Illinois.

* WHEN...From 1 AM to 9 AM CDT Saturday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.