FREESE-NOTIS
EVENING WEATHER UPDATE

5:00 PM, Tuesday, October 13, 2026

MIDWESTERN U.S.

5:00 PM CDT, Tue Oct 13, 2026

MIDWEST U.S. - 1 A significant rain event is expected to impact the western Corn Belt and western Illinois on Wednesday and Thursday, bringing substantial precipitation to areas that have been relatively dry. According to the latest forecasts, locations such as Des Moines, Iowa, and Peoria, Illinois, are expected to experience showers with high chances of rain, 90% and near 100%, respectively. The rain is likely to be heaviest on Thursday, with totals potentially reaching over an inch in some areas from northern Missouri, southern Iowa and east toward west central Illinois, which show quantitative precipitation amounts ranging from 0.37 to 1.07 inches for Wednesday and Thursday. This rain event may cause harvest delays, particularly for corn and soybeans that are still in the field, and could be a concern for farmers trying to complete their harvests before the onset of winter weather. Following this rain, polar air will flow across the northern corn belt states this weekend with the possibility of widespread frost. Following this cooler weather look for a warming trend again next week. We may see another area of rain over the western corn belt during the 6 to 10 period.

For the 1-5 day outlook October 13-October 18, corn belt temperatures will average near 59.8 F which is 5.9F from normal. Rainfall will average 0.74". Approximately 77% of the area will receive a 0.25" or more. This compares to the earlier estimate today of 77%.

For the 6-10 day outlook, October 18-October 22, the western corn belt temperatures will be Above normal. Rainfall will be Above normal. Eastern corn belt temperatures will be Above normal. Rainfall will be normal.

For the 11-15 day outlook October 23-October 27, the western corn belt temperatures will be Above normal. Rainfall will be Above normal. Eastern corn belt temperatures will be Above normal. Rainfall will be Above normal.

SOUTHEASTERN U.S.

For the 1-5 day outlook October 13-October 18, delta area temperatures will average near 74.9 F which is 11.9 F from normal. Rainfall will average 0.39". Approximately 50% of the area will receive a 0.25" or more. This compares to the earlier estimate today of 50%.

For the 6-10 day outlook, October 18-October 22, the Delta region temperatures will be Above normal. Rainfall will be Above normal. The southeast region temperatures will be Above normal. Rainfall will be normal.

For the 11-15 day outlook October 23-October 27, the Delta temperatures will be Above normal. Rainfall will be Above normal. The southeast region temperatures will be Above normal. Rainfall will be normal.

PLAINS

For the 1-5 day outlook October 13-October 18, winter wheat temperatures will average near 56.4 F which is .8 F from normal. Rainfall will average 1.16". Approximately 100% of the area will receive a 0.25" or more.. This compares to the earlier estimate today of 100%.

For the 6-10 day outlook, October 18-October 22, the winter wheat temperatures will be Above normal. Rainfall will be Above normal.

For the 11-15 day outlook October 23-October 27, the winter wheat temperatures will be Above normal. Rainfall will be Above normal.

NORTHERN PLAINS

For the 1-5 day outlook October 13-October 18, spring wheat temperatures will average near 47.6 F which is 1.5 F from normal. Rainfall will average 0.30". Approximately 67% of the area will receive a 0.25" or more. This compares to the earlier estimate today of 67%.

For the 6-10 day outlook, October 18-October 22, the spring wheat temperatures will be Above normal. Rainfall will be Above normal.

For the 11-15 day outlook October 23-October 27, the spring wheat temperatures will be Above normal. Rainfall will be Above normal.

NORTHEAST

For the 1-5 day outlook October 13-October 18, megalopolis area temperatures will average near 62.9 F which is 6.6 F from normal. Rainfall will average 0.59". Approximately 75% of the area will receive a 0.25" or more. This compares to the earlier estimate today of 75%.

For the 6-10 day outlook, October 18-October 22, The Megalopolis temperatures will be Above normal. Rainfall will be Below normal.

For the 11-15 day outlook October 23-October 27, The Megalopolis temperatures will be Above normal. Rainfall will be normal.

SOUTH AMERICAN TEMPERATURE AND PRECIPITATION MAPS

For the 1-5 day outlook October 13-October 18, Brazil Corn area temperatures will average near 75.3 F which is 1.6 from normal. Rainfall will average 1.47. Approximately 100% of the area will receive a 0.25" or more. This compares to the earlier estimate today of %.

For the 6-10 day outlook October 19 -October 23, Brazil Corn area temperatures will average near 75.2 F which is 1.3 from normal. Rainfall will average 0.72". Approximately 72% of the area will receive a 0.25" or more.

ARGENTINA SOYBEANS