Cool weather will persist through week’s end in the West Coast States, but temperatures will rebound to above-normal levels by early next week. Meanwhile, a warm weather pattern across the Plains and much of the Midwest will be replaced by slightly cooler conditions.

Across the Corn Belt, scattered showers and thunderstorms are grazing the far western areas of the region. Across the remainder of the Midwest, very warm, mostly dry weather favors planting activities and corn and soybean emergence and development.

A major weather pattern change for the Midwest will take place during the next few days.

A slow-moving storm system will drift from the central and southern Plains into the Great Lakes region by week’s end. Rainfall near the path of the storm could total 1 to 4 inches.

According to the Illinois Office of USDA’s National Agricultural Statistics Service, cooler-than-normal temperatures with rain last week caused some low land flooding and ponding in fields. Many producers are predicting a small amount of corn replanting will need to be done.

A large, complex storm system will generate additional late-season snow in the central Rockies, while a mixture of rain and wet snow falls from the central High Plains into the Dakotas and Upper Midwest.

Two periods of possible severe weather exist.

The first will be late Wednesday night as a warm front moves north through Illinois. Large hail and strong winds will be possible.

Once again, farmers across much of Illinois enjoyed excellent weather conditions last week. Many producers were able to finish planting corn and start planting and drilling soybeans.

Several weather disturbances will move across the Plains and Midwest this week, resulting in periods of showers and thunderstorms through Friday.