The temperature is holding at 14°C (58°F) right now, but I have a feeling it's about to cool off considerably:
For comparison, it's 8°C (47°F) in Rockford, which is about 100 km (60 mi) from here; 5°C (41°F) in the Quad Cities (250 km, 150 mi); and already -2°C (29°F) in Des Moines, 450 km (300 mi) away.
The temperature change could be staggering. Kansas City has seen a 22°C (40°F) drop in the past 24 hours, from 20°C (68°F) to -2°C (29°F):
Yum-O!