The 10-day span for Jefferson runs from a high near 42° on Tuesday down to 15° overnight on Friday. Roughly 0.16 in of rain falls over the period, with Saturday the most likely wet day (57%). Wind is the one to watch: gusts to 41 mph around Sunday. The NWS alert board for this area is currently clear. Right now Jefferson is running about 42° warmer than Des Moines. Longer view: continental plains — big swings and a spring severe-storm season.
Jefferson, IA · Elev 1,066 ft · 42.02°N, 94.38°W · Iowa · Forecast computed for these exact coordinates