KVYS pressure (QNH) trend
Illinois Valley Regional Airport Walter A Duncan Field
The altimeter setting over time. Sharp falls mark approaching systems; the range tells you what to expect on a transition altitude.
Lowest QNH
1011 hPa
Sep 12, 2026
Highest QNH
1029 hPa
Sep 23, 2026
Mean QNH
1020 hPa
1,217 archived observations · Archive updated continuously
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