The <a href="https://en.wikipedia.org/wiki/Dust_Bowl" id="mwng" rel="mw:WikiLink" title="Dust Bowl">Dust Bowl</a> heat wave reaches its peak, sending temperatures to 109<span id="mwnw" typeof="mw:Entity"> </span>°F (43<span id="mwoA" typeof="mw:Entity"> </span>°C) in <a href="https://en.wikipedia.org/wiki/Chicago" id="mwoQ" rel="mw:WikiLink" title="Chicago">Chicago</a> and 104<span id="mwog" typeof="mw:Entity"> </span>°F (40<span id="mwow" typeof="mw:Entity"> </span>°C) in <a href="https://en.wikipedia.org/wiki/Milwaukee" id="mwpA" rel="mw:WikiLink" title="Milwaukee">Milwaukee</a>.