Marengo's outlook: warmest day near 85° (Wednesday), coldest night about 56° (Thursday). Roughly 0.17 in of rain falls over the period, with Sunday the most likely wet day (71%). Wind is the one to watch: gusts to 25 mph around Monday. The NWS alert board for this area is currently clear. Right now Marengo is running about 15° warmer than Madison. Longer view: continental plains — big swings and a spring severe-storm season.
Marengo, IA · Elev 738 ft · 41.80°N, 92.07°W · Iowa · Forecast computed for these exact coordinates